GE ML Series 350 User manual

GE Multilin's Quality
Management System is
registered to ISO9001:2000
QMI # 005094
GE Digital Energy
Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEmultilin.com
Instruction manual
350 revision: 1.2
Manual P/N: 1601-9091-A4
GE publication code: GEK-113509C
Copyright © 2009 GE Multilin
*1601-9086-A4*
350
Feeder Protection System
Feeder protection and control
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© 2009 GE Multilin Incorporated. All rights reserved.
GE Multilin 350 Feeder Protection System instruction manual for revision 1.2.
350 Feeder Protection System, EnerVista, EnerVista Launchpad, and EnerVista SR3 Setup
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: 1601-9091-A4 (June 2009)
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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Table of Contents
1. INTRODUCTION Overview ........................................................................................................ 1 - 1
Cautions and warnings ............................................................................... 1 - 2
Description of the 350 Feeder Protection System.................................. 1 - 3
350 order codes ............................................................................................ 1 - 6
Specifications................................................................................................ 1 - 7
Password security....................................................................................................................1 - 7
Protection specifications ......................................................................................................1 - 7
Data capture ..............................................................................................................................1 - 8
Control specifications.............................................................................................................1 - 9
Inputs specifications...............................................................................................................1 - 10
Outputs specifications ...........................................................................................................1 - 11
Power supply specifications................................................................................................1 - 11
Communications specifications........................................................................................1 - 12
Testing and certification .......................................................................................................1 - 12
Physical specifications...........................................................................................................1 - 13
Environmental specifications .............................................................................................1 - 13
2. INSTALLATION Mechanical installation............................................................................... 2 - 1
Dimensions..................................................................................................................................2 - 2
Product identification .............................................................................................................2 - 2
Mounting ......................................................................................................................................2 - 3
Unit withdrawal and insertion............................................................................................2 - 6
Electrical installation................................................................................... 2 - 7
Terminal identification ...........................................................................................................2 - 8
Phase sequence and transformer polarity...................................................................2 - 9
Current inputs ............................................................................................................................2 - 9
Ground and sensitive ground CT inputs ........................................................................2 - 9
Zero sequence CT installation............................................................................................2 - 10
Control power ............................................................................................................................2 - 11
Trip and Close output relays ...............................................................................................2 - 11
Contact inputs ...........................................................................................................................2 - 13
Serial communications..........................................................................................................2 - 14
IRIG-B .............................................................................................................................................2 - 15
3. INTERFACES Front control panel interface..................................................................... 3 - 2
Description ..................................................................................................................................3 - 2
Display ...........................................................................................................................................3 - 3
Working with the Keypad .....................................................................................................3 - 3
LED status indicators..............................................................................................................3 - 5
Relay messages ........................................................................................................................3 - 6
Target messages.....................................................................................................................3 - 6
Self-test errors..........................................................................................................................3 - 7
Flash messages.......................................................................................................................3 - 8
Software setup.............................................................................................. 3 - 10
Quick setup - Software interface ......................................................................................3 - 10
EnerVista SR3 Setup Software............................................................................................3 - 10
Hardware and software requirements.........................................................................3 - 11
Installing the EnerVista SR3 Setup software..............................................................3 - 11
Connecting EnerVista SR3 Setup to the relay ............................................................3 - 14
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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
Configuring serial communications...............................................................................3 - 14
Using the Quick Connect feature ....................................................................................3 - 15
Configuring Ethernet communications ........................................................................3 - 16
Connecting to the relay........................................................................................................3 - 17
Working with setpoints and setpoint files....................................................................3 - 18
Engaging a device..................................................................................................................3 - 18
Entering setpoints...................................................................................................................3 - 18
File support ................................................................................................................................3 - 20
Using setpoints files...............................................................................................................3 - 20
Downloading and saving setpoints files......................................................................3 - 20
Adding setpoints files to the environment..................................................................3 - 20
Creating a new setpoint file...............................................................................................3 - 21
Upgrading setpoint files to a new revision .................................................................3 - 22
Printing setpoints and actual values .............................................................................3 - 23
Printing actual values from a connected device .....................................................3 - 24
Loading setpoints from a file.............................................................................................3 - 25
Upgrading relay firmware ...................................................................................................3 - 25
Loading new relay firmware..............................................................................................3 - 25
Advanced EnerVista SR3 Setup features ......................................................................3 - 27
Flexcurve editor .......................................................................................................................3 - 27
Transient recorder (Waveform capture).......................................................................3 - 28
Protection summary..............................................................................................................3 - 31
Password security ..................................................................................................................3 - 32
4. ACTUAL VALUES Actual values overview ............................................................................... 4 - 1
A1 Status ........................................................................................................ 4 - 3
Clock...............................................................................................................................................4 - 4
Contact inputs...........................................................................................................................4 - 4
Output relays .............................................................................................................................4 - 4
Logic elements ..........................................................................................................................4 - 5
Virtual inputs ..............................................................................................................................4 - 5
Remote inputs ...........................................................................................................................4 - 5
Remote outputs ........................................................................................................................4 - 5
Contact inputs summary......................................................................................................4 - 6
Output relays summary........................................................................................................4 - 6
Logic elements summary.....................................................................................................4 - 6
GOOSE status.............................................................................................................................4 - 6
GOOSE HDR status ..................................................................................................................4 - 6
A2 Metering ................................................................................................... 4 - 8
A3 Records ..................................................................................................... 4 - 9
Event records.............................................................................................................................4 - 9
Transient records.....................................................................................................................4 - 13
Clear event record...................................................................................................................4 - 13
Clear transient record............................................................................................................4 - 13
Clear thermal capacity record...........................................................................................4 - 14
A4 Target messages..................................................................................... 4 - 15
5. QUICK SETUP -
FRONT CONTROL
PANEL
Quick Setup settings .................................................................................... 5 - 3
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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
6. SETPOINTS Setpoints Main Menu ................................................................................... 6 - 1
Setpoint entry methods.........................................................................................................6 - 2
Common setpoints ..................................................................................................................6 - 3
Logic diagrams..........................................................................................................................6 - 4
Setting text abbreviations....................................................................................................6 - 4
S1 Relay setup............................................................................................... 6 - 5
Clock...............................................................................................................................................6 - 5
Password security....................................................................................................................6 - 7
Access passwords..................................................................................................................6 - 8
Communications ......................................................................................................................6 - 10
RS485 interface .......................................................................................................................6 - 10
Modbus........................................................................................................................................6 - 11
IEC 60870-5-103 serial communication ......................................................................6 - 12
IEC60870-5-104 protocol....................................................................................................6 - 12
DNP communication.............................................................................................................6 - 14
IEC 61850 GOOSE communications...............................................................................6 - 14
Event recorder ...........................................................................................................................6 - 15
Transient recorder ...................................................................................................................6 - 16
Front panel ..................................................................................................................................6 - 18
Installation...................................................................................................................................6 - 18
S2 System Setup ........................................................................................... 6 - 19
Current sensing.........................................................................................................................6 - 19
Power system.............................................................................................................................6 - 20
Breaker..........................................................................................................................................6 - 20
User curve....................................................................................................................................6 - 21
Flexcurves™................................................................................................................................6 - 21
S3 Protection ................................................................................................. 6 - 22
Current elements......................................................................................................................6 - 24
TOC curves.................................................................................................................................6 - 25
Phase timed overcurrent protection .............................................................................6 - 32
Phase instantaneous overcurrent protection ...........................................................6 - 35
Ground/Sensitive Ground timed overcurrent protection.....................................6 - 37
Ground/Sensitive Ground instantaneous overcurrent protection...................6 - 40
Neutral timed overcurrent protection...........................................................................6 - 43
Neutral instantaneous overcurrent protection ........................................................6 - 46
Cable Thermal Model..............................................................................................................6 - 49
S4 Control ...................................................................................................... 6 - 53
Change setpoint group..........................................................................................................6 - 54
Virtual inputs...............................................................................................................................6 - 56
Logic elements...........................................................................................................................6 - 57
Breaker control..........................................................................................................................6 - 63
Cold load pickup .......................................................................................................................6 - 64
Breaker failure ...........................................................................................................................6 - 67
Autorecloser................................................................................................................................6 - 69
S5 Inputs/Outputs ........................................................................................ 6 - 74
Contact inputs ...........................................................................................................................6 - 74
Output relays..............................................................................................................................6 - 75
Output Relay 1 "Trip" .............................................................................................................6 - 76
Output Relay 2 "Close"..........................................................................................................6 - 78
Auxiliary Output Relays 3 to 6...........................................................................................6 - 80
Critical Failure Relay #7 .......................................................................................................6 - 81
Virtual inputs...............................................................................................................................6 - 83
Remote inputs............................................................................................................................6 - 84
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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
7. MAINTENANCE M1 Relay information .................................................................................. 7 - 2
M3 Breaker maintenance............................................................................ 7 - 3
Trip coil..........................................................................................................................................7 - 3
Close coil ......................................................................................................................................7 - 6
Breaker trip counter................................................................................................................7 - 9
M4 Breaker monitor ..................................................................................... 7 - 11
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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
350 Feeder Protection System
Chapter 1: Introduction
Digital Energy
Multilin
Introduction
1.1 Overview
The 350 is a microprocessor-based relay for primary and backup over-current protection
of medium and low voltage distribution feeders. The relay is also suitable for providing
over-current protection for small and medium size motors, transformers, generators, and
distribution bus-bars. The small footprint and the withdrawable option make the 350 relay
ideal for panel mounting on either new or retrofit installations. The combination of proven
hardware, a variety of protection and control features, and communications, makes the
relay ideal for total feeder protection and control. Equipped with serial (RS485), USB, and
Ethernet ports, and a wide selection of protocols such as Modbus, DNP3.0, IEC 60870-5-
103, 60870-5-104, GOOSE, the 350 relay is the best-in-class for MCCs, SCADA and inter-
relay communications. The 350 relay provides excellent transparency with respect to
power system conditions and events, through its four-line 20-character display, as well as
the EnerVista SR3 Setup program. Conveniently located LEDs provide indication of relay
operation, alarm, and pickup, as well as breaker, and relay status.
The 350 relay provides the following key benefits:
• Withdrawable small footprint – saves on rewiring and space.
• Multiple protection groups with the added flexibility of switching through a wide
selection of overcurrent protection and control features.
• Fast setup (Quick Setup) menu for power-system setup and a simple overcurrent
protection configuration.
• Large four-line LCD display, LEDs, and an easy-to-navigate keypad.
• Multiple communication protocols for simultaneous access when integrated into
monitoring and control systems.
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1–2 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
CAUTIONS AND WARNINGS CHAPTER 1: INTRODUCTION
1.2 Cautions and warnings
Before attempting to install or use this device, it is imperative that all caution and danger
indicators in this manual are reviewed to help prevent personal injury, equipment damage,
or downtime. The following icons are used to indicate notes, cautions, and dangers.
Figure 1-1: Note icons used in the documentation
The standard note icon emphasizes a specific point or indicates minor problems that may
occur if instructions are not properly followed.
The caution icon indicates that possible damage to equipment or data may occur if
instructions are not properly followed.
The danger icon provides users with a warning about the possibility of serious or fatal
injury to themselves or others.
NOTE
CAUTION
DANGER
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CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 350 FEEDER PROTECTION SYSTEM
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
1.3 Description of the 350 Feeder Protection System
CPU
Relay functions are controlled by two processors: a Freescale MPC5554 32-bit
microprocessor measures all analog signals and digital inputs and controls all output
relays; a Freescale MPC5202B 32-bit microprocessor controls all the Ethernet
communication protocols.
Analog Input 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 960 Hz low
pass 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
12-bit A/D converter before finally being passed on to the CPU for analysis.
Current is sampled thirty-two times per power frequency cycle. These ‘raw’ samples are
calibrated in software, then placed into the waveform capture buffer, thus emulating a
fault recorder. The waveforms can be retrieved from the relay via the EnerVista SR3 Setup
software for display and diagnostics.
Phasors, Transients, and Harmonics
Current waveforms are processed twice every cycle with a DC Offset 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; one that will not overreach.
Processing of AC Current Inputs
The DC Offset Filter is an infinite impulse response (IIR) digital filter, which removes the DC
component from the asymmetrical current present at the moment a fault occurs. This is
done for all current signals used for overcurrent protection. This filter ensures no overreach
of the overcurrent protection; unfortunately, the filter also causes slower overcurrent
response times (0 to 50 ms) for faults marginally over the pickup level.
The Discrete Fourier Transform (DFT) uses exactly one sample cycle to calculate a phasor
quantity which represents the signal at the fundamental frequency; all harmonic
components are removed. All subsequent calculations (e.g. RMS, power, etc.) are based
upon the current phasors, such that the resulting values have no harmonic components.
Protection Elements
All protection elements are processed twice every cycle to determine if a pickup has
occurred or a timer has expired. The protection elements use RMS current, based on the
magnitude of the phasor. Hence, protection is impervious to both harmonics and DC
transients.
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1–4 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 350 FEEDER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Figure 1-2: Single line diagram
Table 1: 350 protection functions
898727A1.CDR
350 RELAY
TRIP
BUS
LOAD
3
1
52
CLOSE
50G/
51G
50P 50N
79
50G 51G
22
21
METERING
TRANSIENT RECORDER
EVENT RECORDER
51N51P CLP
11
4950BF
11 11
1
ANSI device Description
49 Thermal Model
50P Phase Instantaneous Overcurrent
50N Neutral Instantaneous Overcurrent
50G Ground/Sensitive Ground Instantaneous Overcurrent
50BF Breaker Failure
51P Phase Timed Overcurrent
51G Ground Timed Overcurrent
51N Neutral Timed Overcurrent
79 Autoreclose
CLP Cold Load Pickup
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