GE 869 User manual

Instruction manual
Product version: 2.0x
GE publication code: 1601-0450-A8 (GEK-119649G)
*1601-0450-A8*
869
Motor Protection System
Motor Protection, Control and Management
GE
Grid Solutions

© 2017 GE Multilin Incorporated. All rights reserved.
GE Multilin 869 Motor Protection System instruction manual for revision 2.0x.
869 Motor Protection System, EnerVista, EnerVista Launchpad, and EnerVista 8 Series
Setup software are registered trademarks of GE Multilin Inc.
The contents of this manual are the property of GE Multilin Inc. This documentation is
furnished on license and may not be reproduced in whole or in part without the permission
of GE Multilin. The content of this manual is for informational use only and is subject to
change without notice.
Part number: 1601-0450-A8 (July 2017)
Note May contain components with FCC ID: XF6-RS9110N1122
and IC ID: 8407A-RS9110N1122.

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL I
Table of Contents
1.INTRODUCTION Overview .............................................................................................................................................. 1 - 1
Description of the 869 Motor Protection System.............................................................. 1 - 2
Security Overview............................................................................................................................ 1 - 7
869 Order Codes............................................................................................................................... 1 - 8
Specifications...................................................................................................................................1 - 11
Device .......................................................................................................................................................... 1 - 11
Protection................................................................................................................................................... 1 - 11
Control......................................................................................................................................................... 1 - 20
Monitoring.................................................................................................................................................. 1 - 21
Recording................................................................................................................................................... 1 - 23
User-Programmable Elements ........................................................................................................ 1 - 24
Metering...................................................................................................................................................... 1 - 25
Inputs ........................................................................................................................................................... 1 - 27
Outputs........................................................................................................................................................ 1 - 28
Power Supply ........................................................................................................................................... 1 - 30
Communications .................................................................................................................................... 1 - 30
Testing & Certification.......................................................................................................................... 1 - 31
Physical....................................................................................................................................................... 1 - 32
Environmental.......................................................................................................................................... 1 - 32
Cautions and Warnings ..............................................................................................................1 - 33
Safety words and definitions............................................................................................................ 1 - 33
General Cautions and Warnings..................................................................................................... 1 - 33
Must-read Information................................................................................................................1 - 36
Storage........................................................................................................................................................ 1 - 37
For Further Assistance.................................................................................................................1 - 37
Repairs......................................................................................................................................................... 1 - 37
2.INSTALLATION Mechanical Installation................................................................................................................. 2 - 1
Product Identification..............................................................................................................................2 - 1
Dimensions...................................................................................................................................................2 - 2
Mounting .......................................................................................................................................................2 - 3
Standard Panel Mount.............................................................................................................................2 - 4
Depth Reducing Collar.............................................................................................................................2 - 5
Draw-out Unit Withdrawal and Insertion ......................................................................................2 - 7
Removable Power Supply .....................................................................................................................2 - 8
Removable Magnetic Module..............................................................................................................2 - 9
Arc Flash Sensor ..................................................................................................................................... 2 - 10
Sensor Fiber Handling & Storage ....................................................................................................2 - 10
Sensor Installation..................................................................................................................................2 - 10
Electrical Installation ....................................................................................................................2 - 11
Typical Wiring Diagram....................................................................................................................... 2 - 11
Terminal Identification......................................................................................................................... 2 - 14
Wire Size......................................................................................................................................................2 - 18
Phase Sequence and Transformer Polarity............................................................................... 2 - 19
Ground and Sensitive Ground CT Inputs ..................................................................................... 2 - 20
Zero-Sequence CT Installation......................................................................................................... 2 - 21
Differential CT Inputs ............................................................................................................................ 2 - 22
Voltage Inputs.......................................................................................................................................... 2 - 23
Control Power........................................................................................................................................... 2 - 24
Contact Inputs ......................................................................................................................................... 2 - 25
Output Relays .......................................................................................................................................... 2 - 25

II 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Serial Communications ........................................................................................................................2 - 27
IRIG-B............................................................................................................................................................2 - 29
3.INTERFACES Front Control Panel Interface......................................................................................................3 - 2
Graphical Display Pages ...................................................................................................................... 3 - 2
Working with Graphical Display Pages .......................................................................................... 3 - 4
Single Line Diagram................................................................................................................................. 3 - 6
Rugged and Membrane Front Panel LEDs .................................................................................... 3 - 8
Home Screen Icons................................................................................................................................3 - 10
Relay Messages.......................................................................................................................................3 - 11
Target Messages.....................................................................................................................................3 - 11
Self-Test Errors.........................................................................................................................................3 - 12
Out of Service............................................................................................................................................3 - 15
Flash Messages........................................................................................................................................3 - 15
Label Removal..........................................................................................................................................3 - 15
Software Interface ........................................................................................................................3 - 17
EnerVista 8 Series Setup Software..................................................................................................3 - 17
Hardware & Software Requirements ............................................................................................3 - 17
Installing the EnerVista 8 Series Setup Software.....................................................................3 - 18
Upgrading the Software ......................................................................................................................3 - 20
Connecting EnerVista 8 Series Setup software to the Relay..............................................3 - 21
Using the Quick Connect Feature ...................................................................................................3 - 21
Configuring Ethernet Communications........................................................................................3 - 22
Connecting to the Relay ......................................................................................................................3 - 23
Working with Setpoints & Setpoints Files ....................................................................................3 - 24
Engaging a Device..................................................................................................................................3 - 25
Entering Setpoints ..................................................................................................................................3 - 25
File Support................................................................................................................................................3 - 26
Using Setpoints Files..............................................................................................................................3 - 26
Downloading & Saving Setpoints Files..........................................................................................3 - 27
Adding Setpoints Files to the Environment.................................................................................3 - 27
Creating a New Setpoints File...........................................................................................................3 - 28
Upgrading Setpoints Files to a New Revision............................................................................3 - 29
Printing Setpoints....................................................................................................................................3 - 30
Loading Setpoints from a File ...........................................................................................................3 - 31
Uninstalling Files and Clearing Data..............................................................................................3 - 31
Quick Setup................................................................................................................................................3 - 32
Upgrading Relay Firmware................................................................................................................3 - 34
Loading New Relay Firmware...........................................................................................................3 - 35
Advanced EnerVista 8 Series Setup Software Features .......................................................3 - 38
SLD Configurator.....................................................................................................................................3 - 38
FlexCurve Editor.......................................................................................................................................3 - 45
Transient Recorder (Waveform Capture).....................................................................................3 - 46
Protection Summary.............................................................................................................................3 - 50
Offline Settings File Conversion........................................................................................................3 - 52
Convert SR 469 Files..............................................................................................................................3 - 52
Convert 369 Files.....................................................................................................................................3 - 53
Conversion Summary Report............................................................................................................3 - 53
Results Window .......................................................................................................................................3 - 54
4.SETPOINTS Setpoints Main Menu ......................................................................................................................4 - 1
Setpoints Entry Methods ....................................................................................................................... 4 - 2
Common Setpoints................................................................................................................................... 4 - 3
Logic Diagrams.......................................................................................................................................... 4 - 4
Setpoints Text Abbreviations............................................................................................................... 4 - 5
Device.....................................................................................................................................................4 - 6

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL III
Custom Configuration.............................................................................................................................4 - 7
Real-time Clock ..........................................................................................................................................4 - 9
PTP Configuration......................................................................................................................................4 - 9
Clock..............................................................................................................................................................4 - 11
SNTP Protocol ...........................................................................................................................................4 - 12
Security ....................................................................................................................................................... 4 - 13
Basic Security...........................................................................................................................................4 - 14
CyberSentry ..............................................................................................................................................4 - 16
Communications .................................................................................................................................... 4 - 23
Modbus Protocol .....................................................................................................................................4 - 23
RS485............................................................................................................................................................4 - 28
WiFi................................................................................................................................................................4 - 28
USB ................................................................................................................................................................4 - 31
Ethernet Ports...........................................................................................................................................4 - 31
Routing.........................................................................................................................................................4 - 33
DNP Protocol.............................................................................................................................................4 - 36
DNP / IEC104 Point Lists ......................................................................................................................4 - 37
IEC 60870-5-104 .....................................................................................................................................4 - 40
IEC 60870-5-103 .....................................................................................................................................4 - 41
IEC 61850....................................................................................................................................................4 - 42
Remote Modbus Device.......................................................................................................................4 - 45
Transient Recorder ................................................................................................................................ 4 - 46
Data Logger .............................................................................................................................................. 4 - 48
Fault Reports ............................................................................................................................................ 4 - 50
Event Data ................................................................................................................................................. 4 - 52
Flex States.................................................................................................................................................. 4 - 52
Front Panel ................................................................................................................................................ 4 - 52
Programmable LEDs..............................................................................................................................4 - 52
Programmable Pushbuttons .............................................................................................................4 - 53
Tab Pushbuttons .....................................................................................................................................4 - 58
Annunciator...............................................................................................................................................4 - 61
Display Properties ..................................................................................................................................4 - 63
Default Screens........................................................................................................................................4 - 64
Home Screens..........................................................................................................................................4 - 65
Resetting..................................................................................................................................................... 4 - 66
Installation................................................................................................................................................. 4 - 66
System ................................................................................................................................................4 - 68
Current Sensing....................................................................................................................................... 4 - 68
Voltage Sensing ...................................................................................................................................... 4 - 69
Traditional VT............................................................................................................................................4 - 69
Power System .......................................................................................................................................... 4 - 70
Motor............................................................................................................................................................ 4 - 71
Setup.............................................................................................................................................................4 - 71
Variable Frequency Drives .................................................................................................................4 - 76
Preset Values ............................................................................................................................................4 - 81
Switching Device .................................................................................................................................... 4 - 82
Breakers ......................................................................................................................................................4 - 82
Contactor....................................................................................................................................................4 - 84
FlexCurves ................................................................................................................................................. 4 - 86
Inputs...................................................................................................................................................4 - 88
Contact Inputs ......................................................................................................................................... 4 - 88
Virtual Inputs ............................................................................................................................................ 4 - 91
Analog Inputs ........................................................................................................................................... 4 - 93
Remote Inputs.......................................................................................................................................... 4 - 97
Outputs ...............................................................................................................................................4 - 98
Output Relays .......................................................................................................................................... 4 - 98
Output Relay 1 (F1) Trip.....................................................................................................................4 - 100

IV 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Output Relay 2 (F4) programmed as Close..............................................................................4 - 102
Auxiliary Output Relays ....................................................................................................................4 - 104
Output Relay 3 (F7) Start Inhibit....................................................................................................4 - 106
Virtual Outputs ......................................................................................................................................4 - 106
Analog Outputs.....................................................................................................................................4 - 107
Protection....................................................................................................................................... 4 - 108
Motor Elements.....................................................................................................................................4 - 110
Percent Differential .............................................................................................................................4 - 110
Thermal Model (49)..............................................................................................................................4 - 117
Current Unbalance (46) .....................................................................................................................4 - 138
Mechanical Jam (50LR) .....................................................................................................................4 - 143
Undercurrent (37).................................................................................................................................4 - 146
Loss of Excitation (40).........................................................................................................................4 - 149
Overload Alarm.....................................................................................................................................4 - 155
Short Circuit............................................................................................................................................4 - 157
Ground Fault (50SG)............................................................................................................................4 - 160
Acceleration Time................................................................................................................................4 - 164
Underpower (37P) ................................................................................................................................4 - 167
2-Speed Motor.......................................................................................................................................4 - 170
2-Speed Thermal Model....................................................................................................................4 - 170
2-Speed Acceleration.........................................................................................................................4 - 171
2-Speed Undercurrent.......................................................................................................................4 - 174
Current Elements .................................................................................................................................4 - 176
Inverse Time Overcurrent Curves.................................................................................................4-176
Percent of Load-To-Trip....................................................................................................................4 - 183
Phase Time Overcurrent Protection (51P).................................................................................4 - 184
Phase Instantaneous Overcurrent Protection (50P) ............................................................4 - 187
Phase Directional Overcurrent Protection (67P)....................................................................4 - 189
Neutral Time Overcurrent Protection (51N).............................................................................4 - 192
Neutral Instantaneous Overcurrent Protection (50N).........................................................4 - 195
Neutral Directional Overcurrent Protection (67N) ................................................................4 - 198
Ground Time Overcurrent Protection (51G).............................................................................4 - 203
Ground Instantaneous Overcurrent Protection (50G).........................................................4 - 205
Negative Sequence Instantaneous Overcurrent Protection (50_2)..............................4 - 207
Voltage Elements .................................................................................................................................4 - 210
Phase Reversal (47) .............................................................................................................................4 - 211
Undervoltage Curves .........................................................................................................................4 - 213
Phase Undervoltage Protection (27P).........................................................................................4 - 214
Phase Overvoltage Protection (59P)............................................................................................4 - 217
Auxiliary Undervoltage (27X) ..........................................................................................................4 - 220
Auxiliary Overvoltage Protection (59X) ......................................................................................4 - 223
Neutral Overvoltage Protection (59N) ........................................................................................4 - 226
Negative Sequence Overvoltage Protection (59_2).............................................................4 - 229
Volts per Hertz (24) ..............................................................................................................................4 - 231
Impedance Elements .........................................................................................................................4 - 236
Out-of-step (78).....................................................................................................................................4 - 238
Power Elements....................................................................................................................................4 - 243
Directional Power (32)........................................................................................................................4 - 244
Reactive Power (40Q) .........................................................................................................................4 - 249
Frequency Elements...........................................................................................................................4 - 252
Underfrequency (81U) .......................................................................................................................4 - 252
Overfrequency (81O) ..........................................................................................................................4 - 255
Frequency Rate of Change (81R)..................................................................................................4 - 258
Monitoring...................................................................................................................................... 4 - 262
Breaker......................................................................................................................................................4 - 262
Trip and Close Circuit Monitoring .................................................................................................4 - 262
Breaker Arcing Current......................................................................................................................4 - 270
Breaker Health ......................................................................................................................................4 - 273

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL V
Broken Rotor Bar ..................................................................................................................................4 - 277
Electrical Signature Analysis (ESA) ...............................................................................................4 - 282
Stator Inter-turn Fault ........................................................................................................................4 - 293
Functions..................................................................................................................................................4 - 297
Power Factor.......................................................................................................................................... 4 - 297
Demand.................................................................................................................................................... 4 - 302
Pulsed Outputs...................................................................................................................................... 4 - 310
Digital Counters.................................................................................................................................... 4 - 313
Harmonic Detection............................................................................................................................4 - 316
Speed .........................................................................................................................................................4 - 319
RTD Temperature .................................................................................................................................4 - 324
RTD Trouble.............................................................................................................................................4 - 329
Loss of Communications ..................................................................................................................4 - 330
Control..............................................................................................................................................4 - 332
Setpoint Group.......................................................................................................................................4 - 332
Start Supervision...................................................................................................................................4 - 335
Thermal Inhibit...................................................................................................................................... 4 - 336
Maximum Starting Rate.................................................................................................................... 4 - 338
Time Between Starts .......................................................................................................................... 4 - 340
Restart Delay .........................................................................................................................................4 - 341
Reduced Voltage Starting.................................................................................................................4 - 342
Local Control Mode (breakers and switches) ..........................................................................4 - 346
Breaker Control .....................................................................................................................................4 - 356
Contactor Control.................................................................................................................................4 - 359
Switch Control (9)..................................................................................................................................4 - 362
Virtual Input Control............................................................................................................................4 - 365
Trip Bus......................................................................................................................................................4 - 366
Breaker Failure (50BF) ........................................................................................................................4 - 368
Setup.......................................................................................................................................................... 4 - 369
Initiate ....................................................................................................................................................... 4 - 371
Arc Flash Protection ............................................................................................................................4 - 373
VT Fuse Failure (VTFF) .........................................................................................................................4 - 375
FlexLogic .........................................................................................................................................4 - 377
Timers ........................................................................................................................................................4 - 387
Non-volatile Latches...........................................................................................................................4 - 387
FlexLogic Equation...............................................................................................................................4 - 388
Viewing FlexLogic Graphics ............................................................................................................ 4 - 390
FlexElements...........................................................................................................................................4 - 391
Testing..............................................................................................................................................4 - 399
Simulation................................................................................................................................................4 - 399
Setup.......................................................................................................................................................... 4 - 400
Pre-Fault................................................................................................................................................... 4 - 400
Fault ........................................................................................................................................................... 4 - 401
Post-Fault ................................................................................................................................................ 4 - 402
Test LEDs ..................................................................................................................................................4 - 403
Contact Inputs .......................................................................................................................................4 - 403
Output Relays ........................................................................................................................................4 - 403
Ethernet Loopback Test.....................................................................................................................4 - 404
5.STATUS Summary ............................................................................................................................................. 5 - 2
Configurable SLD.......................................................................................................................................5 - 2
Annunciator .................................................................................................................................................5 - 3
Tab Pushbuttons........................................................................................................................................5 - 3
Motor...................................................................................................................................................... 5 - 5
Breakers ............................................................................................................................................... 5 - 7

VI 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
Switches................................................................................................................................................5 - 7
Last Trip Data .....................................................................................................................................5 - 8
Arc Flash ...............................................................................................................................................5 - 8
Contact Inputs....................................................................................................................................5 - 8
Output Relays.....................................................................................................................................5 - 9
Virtual Inputs.......................................................................................................................................5 - 9
Virtual Outputs................................................................................................................................5 - 10
Flex State...........................................................................................................................................5 - 10
Communications............................................................................................................................5 - 11
GOOSE Rx and Tx ....................................................................................................................................5 - 11
Information.......................................................................................................................................5 - 15
Main CPU.....................................................................................................................................................5 - 15
Comms CPU...............................................................................................................................................5 - 15
Hardware Versions.................................................................................................................................5 - 15
Environment..............................................................................................................................................5 - 16
Device Status...................................................................................................................................5 - 17
Clock ....................................................................................................................................................5 - 18
PTP Status..........................................................................................................................................5 - 18
6.METERING Summary..............................................................................................................................................6 - 4
Motor ......................................................................................................................................................6 - 5
Percent Differential Current................................................................................................................. 6 - 5
Motor Load................................................................................................................................................... 6 - 5
Speed.............................................................................................................................................................. 6 - 6
Broken Rotor Bar....................................................................................................................................... 6 - 6
Stator Inter-Turn Fault............................................................................................................................ 6 - 7
Bearing, Mechanical and Stator Fault............................................................................................. 6 - 7
Short Circuit................................................................................................................................................. 6 - 9
Impedance........................................................................................................................................ 6 - 10
Positive Sequence Impedance..........................................................................................................6 - 10
Currents.............................................................................................................................................. 6 - 10
Voltages ............................................................................................................................................. 6 - 12
Frequency.........................................................................................................................................6 - 13
Harmonics 1(Harmonics 2)........................................................................................................6-14
Harmonic Detection .....................................................................................................................6 - 15
Power...................................................................................................................................................6 - 16
Energy.................................................................................................................................................6 - 17
Power Factor....................................................................................................................................6 - 18
Current Demand 1.........................................................................................................................6 - 18
Power Demand...............................................................................................................................6 - 19
Directional Power ..........................................................................................................................6 - 19
Arc Flash ............................................................................................................................................6 - 20
RTDs .....................................................................................................................................................6 - 20
RTD Maximums...............................................................................................................................6 - 21
Analog Inputs...................................................................................................................................6 - 21
FlexElements....................................................................................................................................6 - 21
7.RECORDS Events.....................................................................................................................................................7 - 1
Transient Records.............................................................................................................................7 - 2
Fault Reports.......................................................................................................................................7 - 2
Data Logger.........................................................................................................................................7 - 2
Motor Start Records ........................................................................................................................7 - 2

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL VII
Motor Start Statistics...................................................................................................................... 7 - 3
Learned Data ..................................................................................................................................... 7 - 4
Remote Modbus Device................................................................................................................ 7 - 8
Breakers .............................................................................................................................................7 - 10
Breaker Arcing Current........................................................................................................................ 7 - 10
Breaker Health......................................................................................................................................... 7 - 10
Digital Counters ..............................................................................................................................7 - 10
Remote Modbus Device..............................................................................................................7 - 11
Clear Records...................................................................................................................................7 - 13
8.MAINTENANCE Environmental Health Report.....................................................................................................8-1
Motor Health Report....................................................................................................................... 8 - 3
General Maintenance..................................................................................................................... 8 - 6
In-service Maintenance..........................................................................................................................8 - 6
Out-of-service Maintenance................................................................................................................8 - 6
Unscheduled Maintenance (System Interruption).....................................................................8 - 6
A.APPENDIX A Application Notes............................................................................................................................. A - 1
Contactor Current Supervision ...........................................................................................................A - 1
B.APPENDIX B Warranty.............................................................................................................................................. B - 1
Revision history................................................................................................................................. B - 1
Major Updates ............................................................................................................................................B - 2

VIII 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL

869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
869 Motor Protection System
Chapter 1: Introduction
GE
Grid Solutions
Introduction
The Multilin 869 relay is a microprocessor-based unit intended for the management and
primary protection of medium and large sized motors. Base relay models provide thermal
overload and overcurrent protection plus a number of current and voltage based backup
functions.
Overview
The relay features an enhanced thermal model with custom curves, current unbalance
biasing, voltage dependent curves and running and stopped exponential cooling curves.
An optional RTD module allows for the thermal model RTD bias function. Motor start and
supervision functions include thermal inhibit, maximum starting rate, time between starts,
restart delay, acceleration time, and emergency restart. Mechanical jam, current
unbalance elements and VFD application support are also included as basic functions.
Stator differential, sensitive directional power and phase/neutral directional elements are
more advanced features.
These relays contain many innovative features. To meet diverse utility standards and
industry requirements, these features have the flexibility to be programmed to meet
specific user needs. This flexibility will naturally make a piece of equipment difficult to
learn. To aid new users in getting basic protection operating quickly, setpoints are set to
typical default values and advanced features are disabled. These settings can be
reprogrammed at any time.
Programming can be accomplished with the front panel keys and display. Due to the
numerous settings, this manual method can be somewhat laborious. To simplify
programming and provide a more intuitive interface, setpoints can be entered with a PC
running the EnerVista 8 Setup software provided with the relay. Even with minimal
computer knowledge, this menu-driven software provides easy access to all front panel
functions. Actual values and setpoints can be displayed, altered, stored, and printed. If
settings are stored in a setpoint file, they can be downloaded at any time to the front panel
program port of the relay via a computer cable connected to the USB port of any personal
computer.

1–2 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
A summary of the available functions and a single-line diagram of protection and control
features is shown below. For a complete understanding of each feature operation, refer to
Chapter 4: Setpoints. The logic diagrams include a reference to every setpoint related to a
feature and show all logic signals passed between individual features. Information related
to the selection of settings for each setpoint is also provided.
Description of the 869 Motor Protection System
CPU
Relay functions are controlled by two processors: a Freescale MPC5125 32-bit
microprocessor that measures all analog signals and digital inputs and controls all output
relays, and a Freescale MPC8358 32-bit microprocessor that controls all the advanced
Ethernet communication protocols.
Analog Input and Waveform Capture
Magnetic transformers are used to scale-down the incoming analog signals from the
source instrument transformers. The analog signals are then passed through a 11.5 k Hz
low pass analog anti-aliasing filter. All signals are then simultaneously captured by sample
and hold buffers to ensure there are no phase shifts. The signals are converted to digital
values by a 16-bit A/D converter before finally being passed on to the CPU for analysis.
The 'raw' samples are scaled in software, then placed into the waveform capture buffer,
thus emulating a digital fault recorder. The waveforms can be retrieved from the relay via
the EnerVista 8 Series Setup software for display and diagnostics.
Frequency
Frequency measurement is accomplished by measuring the time between zero crossings
of the composite signal of three-phase bus voltages, line voltage or three-phase currents.
The signals are passed through a low pass filter to prevent false zero crossings. Frequency
tracking utilizes the measured frequency to set the sampling rate for current and voltage
which results in better accuracy for the Discrete Fourier Transform (DFT) algorithm for off-
nominal frequencies.
The main frequency tracking source uses three-phase bus voltages. The frequency
tracking is switched automatically by an algorithm to the alternative reference source, i.e.,
three-phase currents signal if the frequency detected from the three-phase voltage inputs
is declared invalid. The switching will not be performed if the frequency from the
alternative reference signal is detected invalid. Upon detecting valid frequency on the
main source, the tracking will be switched back to the main source. If a stable frequency
signal is not available from all sources, then the tracking frequency defaults to the nominal
system frequency.
Phasors, Transients, and Harmonics
All waveforms are processed eight times every cycle through a DC decaying removal filter
and a Discrete Fourier Transform (DFT). The resulting phasors have fault current transients
and all harmonics removed. This results in an overcurrent relay that is extremely secure
and reliable and one that will not overreach.
Processing of AC Current Inputs
The DC Decaying Removal Filter is a short window digital filter, which removes the DC
decaying component from the asymmetrical current present at the moment a fault
occurs. This is done for all current signals used for overcurrent protection; voltage signals
use the same DC Decaying Removal Filter. This filter ensures no overreach of the
overcurrent protection.
The Discrete Fourier Transform (DFT) uses exactly one cycle of samples to calculate a
phasor quantity which represents the signal at the fundamental frequency; all harmonic
components are removed. All subsequent calculations (e.g. power, etc.) are based upon the

CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
current and voltage phasors, such that the resulting values have no harmonic
components. RMS (root mean square) values are calculated from one cycle of samples
prior to filtering.
Protection Elements
All voltage, current and frequency protection elements are processed eight times every
cycle to determine if a pickup has occurred or a timer has expired. The voltage and current
protection elements use RMS current/voltage, or the magnitude of the phasor.
Figure 1-1: Single Line Diagram
Table 1-1: ANSI Device Numbers and Functions
892825A4.CDR
Phase CT
RTD
27P 59P 59N 59_2 VTFF 81U 81O
87S
METERING
TRANSIENT RECORDER
EVENT RECORDER
FAULT REPORT
TRIP
52
CLOSE
MONITORING
50BF 51P 50P 67P
50_2 50LR 49
BUS
Breaker
32
869
Motor Protection System
Neutral CT
M
50G/N51G/N
67N
86
55
START
3
3
Ground CT
1
Differential
core
balance CT 3
37
47
50G 51G
Internal Summation Percent Differential
Core Balance Percent Differential
81R
40
40Q
78
24
66
38 49S
AFP
27P
LIGHT
ANSI Device Description
12/14 Over Speed Protection/ Under Speed Protection
24 Volts per Hertz
27P Phase Undervoltage
32 Directional Power
37 Undercurrent
37P Underpower
38 Bearing RTD Temperature
40 Loss of Excitation
40Q Reactive Power
46 Current Unbalance
47 Phase Reversal
49 Thermal Model
49S Stator RTD Temperature
50BF Breaker Failure
50G Ground Instantaneous Overcurrent

1–4 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Table 1-2: Other Device Functions
50SG Ground Fault
50LR Mechanical Jam
50N Neutral Instantaneous Overcurrent
50P Phase Instantaneous Overcurrent
50_2 Negative Sequence Instantaneous Overcurrent
51G Ground Time Overcurrent
51N Neutral Time Overcurrent
51P Phase Time Overcurrent
52 AC Circuit Breaker
55 Power Factor
59N Neutral Overvoltage
59P Phase Overvoltage
59X Auxiliary Overvoltage
59_2 Negative Sequence Overvoltage
66 Maximum Starting Rate
67N Neutral Directional Element
67P Phase Directional Element
78 Out-of-Step Protection
81O Overfrequency
81U Underfrequency
81R Frequency Rate of Change
86 Start Inhibit
87S Stator Differential
AFP Arc Flash Protection
VTFF Voltage Transformer Fuse Failure
Description
Acceleration Time
Analog Input
Analog Output
Breaker Arcing Current (I2t)
Broken Rotor Bar
Switching Device Control
Breaker Control
Breaker Health
Data Logger
Demand
Digital Counters
Event Recorder
Fault Report
Flexelements
FlexLogic Equations
Flexstates
IEC 61850 Communications
Mechanical Jam
Metering: current, voltage, power, PF, energy, frequency, harmonics, THD
ANSI Device Description

CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5
Modbus User Map
Motor Health Report
Motor Learned Data
Motor Start Records
Motor Start Statistics
Non-volatile Latches
OPC-UA Communications
Output Relays
Overload Alarm
Setpoint Groups (6)
Short Circuit
Stator Inter-Turn Fault
Trip Bus (6)
Transient Recorder (Oscillography)
Trip and Close Coil Monitoring
User-programmable LEDs
User-programmable Pushbuttons
Virtual Inputs (32)
Virtual Outputs (32)
Reduced Voltage Starting
RTD Temperature
Description

1–6 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 869 MOTOR PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Figure 1-2: Main Menu Hierarchy
Setpoints Device
System
Inputs
Outputs
Protection
Monitoring
Control
FlexLogic
Status
Breakers
Contact Inputs
Output Relays
Virtual Inputs
Virtual Outputs
Targets
Motor
Metering Records
Events
Transients
Motor Start Records
Breakers
Dig Counters
Clear Records
Currents
Voltages
Frequency
Harmonics
Harmonic Detection
Energy
RTDs
Data Logger
Fault Reports
Motor Start Statistics
Current Demand
Power Demand
Learned Data
Directional Power
Arc Flash
Arc Flash
Testing
PTP Status
Clock
Device Status
Information
Communications
Flex States
Last Trip Data
Summary
Power Factor
Analog Inputs
RTD Maximums
FlexElements
Summary
Switches
Motor
Impedance
Power

CHAPTER 1: INTRODUCTION SECURITY OVERVIEW
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–7
Security Overview
The following security features are available:
BASIC SECURITY
The basic security feature is present in the default offering of the 869 relay. The
869 introduces the notion of roles for different levels of authority. Roles are used as login
names with associated passwords stored on the device. The following roles are available
at present: Administrator, Operator, Factory and Observer, with a fixed permission
structure for each one. Note that the Factory role is not available for users, but strictly
used in the manufacturing process.
The 869 can still use the Setpoint access switch feature, but enabling the feature can be
done only by an Administrator. Setpoint access is controlled by a keyed switch to offer
some minimal notion of security.
CYBERSENTRY
The CyberSentry Embedded Security feature is a software option that provides advanced
security services. When the software option is purchased, the Basic Security is
automatically disabled.
CyberSentry provides security through the following features:
• An Authentication, Authorization, Accounting (AAA) Remote Authentication Dial-In
User Service (RADIUS) client that is centrally managed, enables user attribution, and
uses secure standards based strong cryptography for authentication and credential
protection.
• A Role-Based Access Control (RBAC) system that provides a permission model that
allows access to 869 device operations and configurations based on specific roles
and individual user accounts configured on the AAA server. At present the defined
roles are: Administrator, Operator and Observer.
• Strong encryption of all access and configuration network messages between the
EnerVista software and 869 devices using the Secure Shell (SSH) protocol, the
Advanced Encryption Standard (AES), and 128-bit keys in Galois Counter Mode (GCM)
as specified in the U.S. National Security Agency Suite B extension for SSH and
approved by the National Institute of Standards and Technology (NIST) FIPS-140-2
standards for cryptographic systems.
• Security event reporting through the Syslog protocol for supporting Security
Information Event Management (SIEM) systems for centralized cyber security
monitoring.
There are two types of authentication supported by CyberSentry that can be used to
access the 869 device:
• Device Authentication – in which case the authentication is performed on the
869 device itself, using the predefined roles as users (No RADIUS involvement).
– 869 authentication using local roles may be done either from the front panel or
through EnerVista.
• Server Authentication - in which case the authentication is done on a RADIUS server,
using individual user accounts defined on the server. When the user accounts are
created, they are assigned to one of the predefined roles recognized by the 869
– 869 authentication using RADIUS server may be done only through EnerVista.
FASTPATH: WiFi and USB do not currently support CyberSentry security. For this reason WiFi is
disabled by default if the CyberSentry option is purchased. The user can enable WiFi, but
be aware that doing so violates the security and compliance model that CyberSentry is
supposed to provide.

1–8 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
869 ORDER CODES CHAPTER 1: INTRODUCTION
When both 869 device and server authentication are enabled, the 869 automatically
directs authentication requests to the 869 device or the respective RADIUS server, based
on user names. If the user ID credential does not match one of the device local accounts,
the 869 automatically forwards the request to a RADIUS server when one is provided. If a
RADIUS server is provided, but is unreachable over the network, server authentication
requests are denied. In this situation, use local 869 device accounts to gain access to the
869 system.
USER ROLES
User Access Levels are used to grant varying permissions to specific user roles. User roles
are used by both Basic Security and CyberSentry.
The following user roles are supported:
•Administrator: The Administrator role has complete read and write access to all
settings and commands. The role does not allow concurrent access. The Administrator
role also has an operand to indicate when it is logged on.
•Operator: The Operator role is present to facilitate operational actions that may be
programmed and assigned to buttons on the front panel. The Operator has read/write
access to all settings under the command menu/section. The Operator can view
settings from EnerVista or the front panel but does not have the ability to change any
settings. This role is not a concurrent role.
•Observer: The Observer role has read-only access to all 869 settings. This role allows
concurrent access. The Observer is the default role if no authentication has been done
to the device. This role can download settings files and records from the device.
•Factory: This is an internal non-user accessible role used for manufacturing
diagnostics. The ability to enable or disable this role is a security setting that the
Administrator controls.
GENERAL RULES FOR USER ROLES WITH CYBERSENTRY
1. The only concurrent role is Observer. If the user is logged in through serial, front panel,
or over the network, that counts as the role being logged in for concurrency reasons.
2. Both EnerVista and the front panel provide a one-step logoff. For the front panel, the
root menu has a logoff command. From EnerVista right-clicking on a device and
providing a logoff function from the context menu is sufficient.
3. The EnerVista Login Screen has “User Name:” and “Password:” fields for the default
remote (Radius) authentication, but when a “Local Authentication” checkbox is
selected the “User Name:” field changes to a drop down menu where the user can
select one of the predefined roles on the 869.
869 Order Codes
NOTE
NOTE: Support of some of the features described in the "Setpoints" section are order code
dependent. Each 8 Series unit is ordered with a number of required and optional modules.
Each of these modules can be supplied in a number of configurations specified at the time
of ordering.
NOTE
NOTE: Refer to https://www.gegridsolutions.com/multilin/catalog/869.htm for available order
code combinations.
The information to specify an 869 relay is provided in the following Order Code figure:

CHAPTER 1: INTRODUCTION 869 ORDER CODES
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
Figure 1-3: 869 Order Codes
869  E ** ** ** H * * A * N G * * * * * * * * * N *
Interface 869 | | | | |||||||||||||||||| 869 Motor Protection System
Application E | | | | | | | | | | | | | | | | | | | | | Standard
Phase Currents ³
Slot J Bank 1/2
P1| ||||||||||||||||||| 1A three-phase current inputs (J1)
P5| ||||||||||||||||||| 5A three-phase current inputs (J1)
Phase Currents ³
Slot K Bank 1
NN | | | | | | | | | | | | | | | | | | | No phase current inputs
P1 | | | | | | | | | | | | | | | | | | | 1A three-phase current inputs (K1)
P5 | | | | | | | | | | | | | | | | | | | 5A three-phase current inputs (K1)
Ground Currents G1 |||||||||||||||||| 1A ground input (J1)
G5|||||||||||||||||| 5A ground input (J1)
B1|||||||||||||||||| 1A ground (J1) + 50:0.025A
(K1, included with current protection M option only)
B5|||||||||||||||||| 5A ground (J1) + 50:0.025A
(K1, included with current protection M option only)
0B|||||||||||||||||| 50:0.025A (J1), only available if NN is selected for Slot K Bank 1
Power Supply L | | | | | | | | | | | | | | | | | 24 to 48 V DC
H | | | | | | | | | | | | | | | | | 110 to 250 V DC/110 to 230 V AC
Slot B - LV IO N |||||||||||||||| None
R|||||||||||||||| 6 X RTDS (Pt100, Ni100, Ni120)
S|||||||||||||||| 6 X RTDS (Pt100, Ni100, Ni120, Cu10)
Slot C- LV IO N | | | | | | | | | | | | | | | None
R | | | | | | | | | | | | | | | 6 X RTDS (Pt100, Ni100, Ni120)
S | | | | | | | | | | | | | | | 6 X RTDS (Pt100, Ni100, Ni120, Cu10)
Slot F - HV IO A |
|| || || || || || || || || || || || || |2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext Supply)
Slot G - HV IO N | | | | | | | | | | | | | None
A | | | | | | | | | | | | | 2 Form A, 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext Supply)
L | | | | | | | | | | | | | 7 DcmA O/P + 4 DcmA I/P + 1 RTD
Slot H - HV IO N |||||||||||| None (High Voltage I/O)
F|||||||||||| 10 Digital Inputs + 4 Arc Flash Inputs
A|||||||||||| 2 Form A, 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext Supply)
Faceplate M | | | | | | | | | | | Basic = Membrane Keypad
G | | | | | | | | | | | Standard = Rugged Keypad
Current Protection S | | | ||||||| Basic: 12/14, 19, 37, 38, 46, 49, 50P, 50N, 50G, 50_2, 50LR(Mechanical
Jam), 51P, 51N, 51G, 66, 86
M|||||||||| Standard: Basic + 67P, 67N, 87S (2nd CT Bank required for 87S)
Voltage Monitoring and Protection S | | | | | | | | | Standard: 27P, 27X, 47, 59P, 59N, 59X, 81O, 81U, VTFF
P | | | | | | | | | Advanced : Standard + 32, 40, 40Q, 55, 59_2, 78
Control B | ||||||| Basic: Breaker/Contactor Control, Virtual Inputs
F|||||||| Standard: Basic + FlexLogic, 50BF, Trip Bus
T|||||||| Advanced HMI: Standard + Tab PBs, Annunciator Panel, Configurable
SLDs with Bay Control
Monitoring B |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Basic: Motor Health Report, Motor Start Report, Motor Learned Data,
Data Logger, Breakers Coil Monitoring, Breaker Arcing, Harmonics,
THD, Demand
C | | | | | | | Standard: Basic + Breaker Health Report, Broken Rotor Bar
A | | | | | | | Advanced: Standard + Harmonic Detection, Stator Inter-turn Fault
E | | | | | | | Extended: Advanced + ESA Functions
Communications S E |
|| || || || |Standard: Front USB, 1 x Rear RS485: Modbus RTU, DNP3.0, IEC60870- 5-103 + 1 x Ethernet (Modbus TCP, DNP)
1E |
|| || || || |Advanced: Front USB, 1 x Rear RS485 + 2 x Ethernet Fiber, MODBUS RTU/TCP, DNP3.0, IEC 60870-5-103/104, 1588, SNTP, OPC-UA
1P||||| Advanced + PRP
2A||||| Advanced + IEC 61850
2E||||| Advanced + PRP + IEC 61850
3A||||| Advanced + Extended IEC 61850
3E||||| Advanced + PRP + Extended IEC 61850
Advanced Communications Connector N | | | | None
S | | | | ST, Multi-mode 1310 nm
C | | | | RJ45, Copper 10/100M

1–10 869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
869 ORDER CODES CHAPTER 1: INTRODUCTION
FASTPATH: Harsh Environment Coating is a standard feature on all 8 Series units.
Advanced security is only available with advanced communications (1E, 1P, 2A, 2E, 3A, 3E).
When the advanced communications option is selected, the Ethernet port on the main CPU
is disabled.
FASTPATH: Retrofit order codes must be configured using the GE Multilin Online Store (OLS) based on
the existing relay order code and additional requirements.
Navigate to https://www.gegridsolutions.com/multilin/catalog/869.htm and click Buy
Retrofit Kit for further information.
Accessories
• 18J0-0030 8 Series Depth Reducing Collar - 1 3/8"
• 18J0-0029 8 Series Depth Reducing Collar - 3"
• 8 Series Retrofit Kit, 469 to 869
892800BA.PDF
Wireless Communication N | | | None
W| | | WiFi 802.11
Security B | | Basic
A | | Advanced: CyberSentry Level 1
Future Option N| Not Available
1Wye 469-869 Retrofit Kit, terminal block wiring assembly for wye (for
retrofit kit only)
2Delta 469-869 Retrofit Kit, terminal block wiring assembly for delta
(for retrofit kit only)