GE SR345 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
345 revision: 1.41
Manual P/N: 1601-9098-A4
GE publication code: GEK-113568C
Copyright © 2011 GE Multilin
*1601-9098-A4*
345
Transformer Protection System
Transformer protection and control
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© 2011 GE Multilin Incorporated. All rights reserved.
GE Multilin 345 Transformer Protection System instruction manual for revision 1.41.
345 Transformer 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: 1601-9098-A4 (May 2011)
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345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Table of Contents
1. INTRODUCTION Overview ............................................................................................................................ 1 - 1
Cautions and warnings............................................................................................... 1 - 2
Description of the 345 Transformer Protection System ..............................1 - 3
345 order codes.............................................................................................................. 1 - 7
Specifications................................................................................................................... 1 - 8
Password security................................................................................................................1 - 8
Protection.................................................................................................................................1 - 8
Metering....................................................................................................................................1 - 10
Data capture ..........................................................................................................................1 - 10
Controls.....................................................................................................................................1 - 11
Inputs/Outputs ......................................................................................................................1 - 11
Power supply..........................................................................................................................1 - 12
Communications ..................................................................................................................1 - 13
Testing and certification ...................................................................................................1 - 13
2. INSTALLATION Mechanical installation ...............................................................................................2 - 1
Dimensions..............................................................................................................................2 - 1
Product identification .........................................................................................................2 - 2
Mounting ..................................................................................................................................2 - 3
Unit withdrawal and insertion........................................................................................2 - 4
Electrical installation .................................................................................................... 2 - 6
Terminal identification .......................................................................................................2 - 7
Phase sequence and transformer polarity...............................................................2 - 9
Current inputs ........................................................................................................................2 - 10
Ground and sensitive ground CT inputs ....................................................................2 - 10
Zero sequence CT installation........................................................................................2 - 11
Control power ........................................................................................................................2 - 12
Contact inputs .......................................................................................................................2 - 12
Trip1 and Trip2 output relays..........................................................................................2 - 13
Serial communications......................................................................................................2 - 15
IRIG-B .........................................................................................................................................2 - 16
3. INTERFACES Front control panel interface....................................................................................3 - 2
Description ..............................................................................................................................3 - 3
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 - 9
Quick setup - Software interface ..................................................................................3 - 9
EnerVista SR3 Setup Software........................................................................................3 - 9
Hardware and software requirements.....................................................................3 - 10
Installing the EnerVista SR3 Setup software..........................................................3 - 10
Connecting EnerVista SR3 Setup to the relay ........................................................3 - 13
Configuring serial communications...........................................................................3 - 13
Using the Quick Connect feature................................................................................3 - 14
Configuring Ethernet communications....................................................................3 - 15
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345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Connecting to the relay....................................................................................................3 - 16
Working with setpoints and setpoint files................................................................ 3 - 17
Engaging a device..............................................................................................................3 - 17
Entering setpoints...............................................................................................................3 - 17
File support ............................................................................................................................3 - 18
Using setpoints files...........................................................................................................3 - 18
Downloading and saving setpoints files..................................................................3 - 19
Adding setpoints files to the environment..............................................................3 - 20
Creating a new setpoint file...........................................................................................3 - 20
Upgrading setpoint files to a new revision .............................................................3 - 21
Printing setpoints and actual values .........................................................................3 - 22
Printing actual values from a connected device .................................................3 - 23
Loading setpoints from a file.........................................................................................3 - 24
Upgrading relay firmware ............................................................................................... 3 - 24
Loading new relay firmware..........................................................................................3 - 24
Advanced EnerVista SR3 Setup features .................................................................. 3 - 26
Transient recorder (Waveform capture)...................................................................3 - 26
Protection summary..........................................................................................................3 - 29
Password security ..............................................................................................................3 - 30
4. ACTUAL VALUES Actual values.....................................................................................................................4 - 1
A1 Status.............................................................................................................................4 - 3
Clock........................................................................................................................................... 4 - 4
Contact inputs....................................................................................................................... 4 - 4
Output relays ......................................................................................................................... 4 - 5
Logic elements ...................................................................................................................... 4 - 5
Virtual inputs .......................................................................................................................... 4 - 5
Remote inputs ....................................................................................................................... 4 - 5
Remote outputs .................................................................................................................... 4 - 6
Contact inputs summary.................................................................................................. 4 - 6
Output relays summary.................................................................................................... 4 - 6
Logic elements summary................................................................................................. 4 - 7
GOOSE status......................................................................................................................... 4 - 7
GOOSE HDR status .............................................................................................................. 4 - 7
A2 Metering .......................................................................................................................4 - 8
A3 Records.........................................................................................................................4 - 12
Event records......................................................................................................................... 4 - 12
Transient records................................................................................................................. 4 - 31
Clear event record............................................................................................................... 4 - 31
Clear transient record........................................................................................................ 4 - 31
Clear thermal capacity record....................................................................................... 4 - 31
A4 Target messages......................................................................................................4 - 32
5. QUICK SETUP -
FRONT CONTROL
PANEL
Quick Setup menu..........................................................................................................5 - 3
6. SETPOINTS Setpoints Main Menu ....................................................................................................6 - 1
Setpoint entry methods .................................................................................................... 6 - 2
Common setpoints.............................................................................................................. 6 - 2
Logic diagrams ..................................................................................................................... 6 - 3
Setting text abbreviations................................................................................................ 6 - 3
S1 Relay setup..................................................................................................................6 - 5
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345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Clock...........................................................................................................................................6 - 6
Password security................................................................................................................6 - 7
Passwords..............................................................................................................................6 - 9
Communications ..................................................................................................................6 - 10
RS485 interface ...................................................................................................................6 - 11
Ethernet...................................................................................................................................6 - 11
Modbus....................................................................................................................................6 - 12
IEC 60870-5-103 serial communication ..................................................................6 - 13
IEC60870-5-104 protocol................................................................................................6 - 27
DNP communication.........................................................................................................6 - 28
IEC 61850 GOOSE communications...........................................................................6 - 42
Event recorder .......................................................................................................................6 - 43
Transient recorder ...............................................................................................................6 - 44
Front panel ..............................................................................................................................6 - 45
Installation...............................................................................................................................6 - 46
S2 System Setup............................................................................................................. 6 - 47
Current sensing.....................................................................................................................6 - 47
Power system.........................................................................................................................6 - 48
Transformer ............................................................................................................................6 - 49
Transformer setup phase & magnitude compensations ..................................6 - 50
Winding breakers .................................................................................................................6 - 61
S3 Protection.................................................................................................................... 6 - 64
Setpoint group 1(2) ..............................................................................................................6 - 65
Transformer percent differential.................................................................................6 - 67
Transformer instantaneous differential...................................................................6 - 73
Restricted ground fault ....................................................................................................6 - 75
Transformer thermal protection..................................................................................6 - 80
Phase timed overcurrent protection .........................................................................6 - 83
Phase instantaneous overcurrent protection.......................................................6 - 90
Ground timed overcurrent protection ......................................................................6 - 93
Ground instantaneous overcurrent protection ....................................................6 - 97
Neutral timed overcurrent protection.......................................................................6 - 100
Neutral instantaneous overcurrent protection ....................................................6 - 103
Negative sequence timed overcurrent protection..............................................6 - 106
S4 Controls........................................................................................................................ 6 - 109
Change setpoint group......................................................................................................6 - 109
Virtual inputs...........................................................................................................................6 - 111
Logic elements.......................................................................................................................6 - 112
Winding breaker failure.....................................................................................................6 - 126
S5 Inputs/Outputs..........................................................................................................6 - 129
Contact inputs .......................................................................................................................6 - 129
Output relays..........................................................................................................................6 - 130
Output Relay 1 - W1 breaker "Trip" ............................................................................6 - 131
Output Relay 2 - W2 breaker "Trip" ............................................................................6 - 131
Auxiliary Output Relays 3 to 6.......................................................................................6 - 134
Virtual inputs...........................................................................................................................6 - 134
Remote inputs........................................................................................................................6 - 136
Remote outputs.....................................................................................................................6 - 136
7. MAINTENANCE M1 Relay information................................................................................................... 7 - 3
M3 Breaker maintenance...........................................................................................7 - 5
W1 (W2) Breaker trip coil ..................................................................................................7 - 5
M4 Breaker monitor...................................................................................................... 7 - 9
M5 Relay maintenance................................................................................................ 7 - 10
Ambient temperature.........................................................................................................7 - 10
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345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
APPENDIX. Change notes ...................................................................................................................Appendix - 1
Manual Revision history.................................................................................................... Appendix - 1
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345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–1
345 Transformer Protection System
Chapter 1: Introduction
Digital Energy
Multilin
Introduction
Overview
The 345 is a microprocessor-based relay for primary and backup protection of small to
medium size distribution transformers. The relay provides advanced algorithms for
automatic magnitude and phase compensation for more than twenty types of two-
winding transformers, good sensitivity for the detection of winding ground faults, and the
flexibility to set any of the phase, ground, neutral and negative sequence currents over-
current elements. The 345 relay has a small footprint and is withdrawable for easy
mounting into either new or retrofit installations. The combination of proven hardware,
advanced features, and communications, makes the relay superior for total transformer
metering, monitoring, protection and control. Equipped with serial (RS485), USB, and
Ethernet ports, as well as a wide selection of protocols such as Modbus, DNP3.0, IEC60870-
5-103, 60870-5-104, IEC 61850 GOOSE, the 345 relay is the best-in-class for either MCCs,
SCADA or inter-relay communications. The 345 provides excellent accessibility and
transparency with regard to power system conditions and events, through both its four-
line 20 character display, and the EnerVista SR3 Setup program. Conveniently located LEDs
indicate the relay status, pickup, operation, and alarm events, as well as the status of each
winding breaker.
The 345 relay provides the following key benefits:
• Withdrawable small footprint – saves on rewiring and space.
• Multiple protection groups with the flexibility to switch through a wide selection of
main and backup transformer protections and controls.
• Fast setup (Quick Setup) menu for power system configuration and protection.
• Large four-line LCD display, LEDs, and keypad
• Multiple communication protocols and simultaneous access with easy integration into
monitoring and control systems.
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1–2 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CAUTIONS AND WARNINGS CHAPTER 1: INTRODUCTION
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: 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 345 TRANSFORMER PROTECTION SYSTEM
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
Description of the 345 Transformer 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 MPC520B 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.
Both current and voltage are sampled thirty-two times per power frequency cycle. These
‘raw’ samples are scaled 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; voltage signals bypass the DC
Offset Filter. This filter ensures no overreach of the overcurrent protection.
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 and voltage phasors, such that the resulting values have no harmonic
components.
Protection Elements
The protection elements are processed four times per power cycle. 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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1–4 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 345 TRANSFORMER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Figure 2: Single line diagram
897743.CDR
345 RELAY
50G/
51G
50G/
51G
Metering
Calculate
Restraint Current Calculate
Differential Currents
Calculate
Harmonics
2nd and 5th
BLOCK
50P50P 50G50G
51P
51P 51G
51G
50BF
50BF
51_2
51_2
50N
50N
51N
51N
87G
87G
87T
50/87
Winding 2
Winding 1
49P
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CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 345 TRANSFORMER PROTECTION SYSTEM
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–5
Table 1: Protection Elements
The 345 relay has two identical setpoint groups, with the same set of protection elements.
By default setpoint group 1 will be active. Setpoint group 2 can be activated by
programming the conditions under S4 Control/Change Setpoint Group menu.
Depending on the relay order code, the type and number of protection elements per
setpoint group changes. The full set of protection elements will be available in the setpoint
group, if the “Advanced configuration (letter M) is selected in the order code. This includes
one Transformer Percent Differential element, one Instantaneous Differential element, two
Restricted Ground Fault elements, one Thermal Model, two Breaker Failure elements, two
of each Phase-, Ground-, and Neutral Instantaneous Overcurrent elements, two of each
Phase-, Ground-, Neutral Timed Overcurrent elements, and two Negative Sequence Timed
Overcurrent elements. Some of the protection elements are common for the transformer
protection: Percent and Instantaneous differential elements, Thermal Model, and others
are generic with programmable AC inputs from either winding currents: the Restricted
Ground Fault 1(2), the Phase-, Ground-, and Neutral IOC1(2), the Phase-, Ground-, and
Neutral TOC1(2), and the Negative Sequence TOC1(2) elements.
ANSI Device Description
87T Percent Differential
50/87 Instantaneous Differential
87G Restricted Ground Fault
49 Thermal Model
50P Phase Instantaneous Overcurrent
50G Ground/Sensitive Ground Instantaneous Overcurrent
50N Neutral Instantaneous Overcurrent
50BF Breaker Failure
51P Phase Timed Overcurrent
51G Ground/Sensitive Ground Timed Overcurrent
51N Neutral Timed Overcurrent
51_2 Negative Sequence Timed Overcurrent
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1–6 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
DESCRIPTION OF THE 345 TRANSFORMER PROTECTION SYSTEM CHAPTER 1: INTRODUCTION
Figure 3: Main menu
ACTUAL VALUES
QUICK SETUP
SETPOINTS
MAINTENANCE
ACTUAL VALUES
A1 STATUS
A2 METERING
A3 RECORDS
A4 TARGET MESSAGES
▼
QUICK SETUP
RELAY STATUS
NOMINAL FREQUENCY
TRANSFORMER TYPE
XFMR RATED LOAD
W1 NOM VOLTAGE
W1 GROUNDING
W1 PH CT PRIMARY
W1 GND CT PRIMARY
W2 PH CT PRIMARY
W2 GND CT PRIMARY
W2 NOM VOLTAGE
W2 GROUNDING
XFMR PERCENT DIFF
PH TOC1 FUNCTION
GND TOC1 FUNCTION
PH IOC1 FUNCTION
GND IOC1 FUNCTION
▼
SETPOINTS
S1 RELAY SETUP
S2 SYSTEM SETUP
S3 PROTECTION
S4 CONTROLS
S5 INPUTS/OUTPUTS
▼
MAINTENANCE
M1 RELAY INFO
M3 BKR MAINTENANCE
M4 BKR MONITOR
M5 RELAY MAINT
M6 FACTORY SERVICE
▼
897756A1.cdr
XFMR PERCENT DIFF
PCNT DIFF FUNCTION
MINIMUM PICKUP
SLOPE 1
BREAKPOINT 1
BREAKPOINT 2
SLOPE 2
▼
PHASE TOC1
PHASE TOC1 FUNCTION
PH TOC1 PICKUP
PHASE CT INPUT
PH TOC1 CURVE
PH TOC1 TDM
RLY1 TRIP W1 BKR
RLY2 TRIP W2 BKR
▼
GROUND TOC1
GND TOC1 PICKUP
GND TOC1 FUNCTION
GND CT INPUT
GND TOC1 CURVE
GND TOC1 TDM
RLY1 TRIP W1 BKR
RLY2 TRIP W2 BKR
▼
PHASE IOC1
PH IOC1 PICKUP
RLY1 TRIP W1 BKR
PHASE IOC1 FUNCTION
PH CT INPUT
RLY2 TRIP W2 BKR
▼
GROUND IOC1
GND IOC1 PICKUP
RLY1 TRIP W1 BKR
GROUND IOC1 FUNCTION
GND CT INPUT
RLY2 TRIP W2 BKR
▼
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CHAPTER 1: INTRODUCTION 345 ORDER CODES
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–7
345 order codes
The information to specify a 345 relay is provided in the following order code figure.
Figure 4: 345 order codes
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1–8 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Specifications
NOTE
NOTE: Specifications are subject to change without notice.
Password security
PASSWORD SECURITY
Master Reset Password:..................................8 to 10 alpha-numeric characters
Settings Password:............................................. 3 to 10 alpha-numeric characters for local and remote
access
Control Password: ..............................................3 to 10 alpha-numeric characters for local and remote
access
Protection
PHASE/NEUTRAL/GROUND/NEGATIVE SEQUENCE TIMED OVERCURRENT (51P/51N/51G/
51_2)
Ground Current:...................................................Fundamental
Pickup Level: .........................................................0.04 to 20.00 x CT in steps of 0.01 x CT
Dropout Level:......................................................97 to 99% of Pickup @ I > 1 x CT
Pickup - 0.02 x CT @ I < 1 x CT
Curve Shape:.........................................................ANSI Extremely/Very/Moderately/Normally Inverse
Definite Time
IEC Curve A/B/C/Short
IAC Extremely/Very/Inverse/Short
Curve Multiplier: ..................................................0.05 to 20.00 in steps of 0.01
Reset Time:............................................................ Instantaneous, Linear
Time Delay Accuracy:.......................................±3% of expected inverse time or 1 cycle, whichever is
greater
Level Accuracy:....................................................per CT input
SENSITIVE GROUND TIMED OVERCURRENT (51SG)
Ground Current:...................................................Fundamental
Pickup Level: .........................................................0.005 to 3.000 x CT in steps of 0.001 x CT
Dropout Level:......................................................97 to 99% of Pickup @ I > 0.1 x CT
Pickup - 0.02 x CT @ I < 0.1 x CT
Curve Shape:.........................................................ANSI Extremely/Very/Moderately/Normally Inverse
Definite Time
IEC Curve A/B/C/Short
IAC Extreme/Very/Inverse/Short
Curve Multiplier: ..................................................0.05 to 20.0 in steps of 0.1
Reset Time:............................................................ Instantaneous, Linear
Time Delay Accuracy:.......................................±3% of expected inverse time or 1 cycle, whichever is
greater
Level Accuracy:....................................................per CT input
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CHAPTER 1: INTRODUCTION SPECIFICATIONS
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–9
PHASE/NEUTRAL/GROUND/NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT
(50P/50N/50G/50_2)
Current:....................................................................Fundamental
Pickup Level:..........................................................0.05 to 20.00 x CT in steps of 0.01 x CT
Dropout Level: ......................................................97 to 99% of Pickup @ I > 1 x CT
Pickup - 0.02 x CT @ I <1 x CT
Time Delay:............................................................0.00 to 300.00 sec in steps of 0.01
Operate Time:.......................................................<30 ms @ 60Hz (I > 2.0 x PKP, No time delay)
<35 ms @ 50Hz (I > 2.0 x PKP, No time delay)
Time Delay Accuracy:.......................................0 to 1 cycle (Time Delay selected)
Level Accuracy:....................................................per CT input
SENSITIVE GROUND INSTANTANEOUS OVERCURRENT (50SG)
Pickup Level (Gnd IOC):.....................................0.005 to 3.000 x CT in steps of 0.001 x CT
Dropout Level: ......................................................97 to 99% of Pickup @ I > 0.1 x CT
Pickup - 0.002 x CT @ I < 0.1 x CT
Time Delay:............................................................0.00 to 300.00 sec in steps of 0.01
Operate Time:.......................................................<30 ms @ 60Hz (I > 2.0 x PKP, No time delay)
<35 ms @ 50Hz (I > 2.0 x PKP, No time delay)
Time Delay Accuracy:.......................................0 to 1 cycle (Time Delay selected)
Level Accuracy:....................................................per CT input
TRANSFORMER THERMAL PROTECTION (49)
Current:....................................................................Fundamental
Pickup Accuracy:.................................................per current inputs
Timing Accuracy: ................................................±3% of expected time, or 30 ms (whichever is greater)
@ I > 1.5 x PKP
TRANSFORMER PERCENT DIFFERENTIAL PROTECTION (87T)
Differential/Restraint Characteristic:.........Dual Slope, Dual Breakpoint
Minimum Pickup Level:.....................................0.05 to 1.00 x CT in steps of 0.01
Slope 1 Range:......................................................15 to 100% in steps of 1%
Slope 2 Range:......................................................50 to 100% in steps of 1%
Kneepoint 1: ..........................................................0.50 to 4.00 x CT in steps of 0.01
Kneepoint 2: ..........................................................1.00 to 10.00 x CT in steps of 0.01
2nd Harmonic Inhibit Level:............................1.0 to 40.0% insteps of 0.1%
2nd Harmonic Inhibit Mode: ...........................Per-phase, 2-out-of-three, Average
5th Harmonic Inhibit Level:.............................1.0 to 40.0% insteps of 0.1%
Dropout Level: ......................................................97 to 98% of Pickup
Operate Time:.......................................................< 20 ms (no harmonics inhibits selected)
< 30 ms (harmonics inhibits selected)
Level Accuracy:....................................................per current inputs
TRANSFORMER INSTANTANEOUS DIFFERENTIAL PROTECTION (50/87)
Pickup Level:..........................................................3.00 to 20.00xCT in steps of 0.01xCT
Dropout Level: ......................................................97 to 98% of Pickup
Operate Time:.......................................................<30 ms
Level Accuracy:....................................................per current inputs
RESTRICTED GROUND FAULT
Number of Elements: ........................................2
Pickup Level:..........................................................0.02 to 20.00 xCT in steps of 0.01
0.002 to 2.000 xCT (with sensitive CTs)
GND Supervision Level:....................................0.02 to 20.00 xCT in steps of 0.01
0.002 to 2.000 xCT (with sensitive CTs)
Dropout Level: ......................................................97 to 98% of Pickup
Slope Range: .........................................................0 to 100% in steps of 1
Pickup Delay:.........................................................0.00 to 600.0 s in steps of 0.01
Operate Time:.......................................................< 30 ms @ 0 ms time delay
Level Accuracy:....................................................per current inputs
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1–10 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Metering
PHASE & GROUND CURRENT INPUTS
CT Primary: ............................................................1 to 6000 A
Range:......................................................................0.02 to 20 × CT
Input type:..............................................................1 A or 5 A (must be specified with order P1G1 or P5G5)
Configurable 1 A or 5 A (must be specified with order P0G0)
Nominal frequency:...........................................50/60 Hz
Burden:....................................................................<0.1 VA at rated load
Accuracy:................................................................±1% of reading at 1× CT
±3% of reading from 0.2 to 20 × CT
±20% of reading from 0.02 to 0.19 × CT
CT withstand:........................................................ 1 second at 100 × rated current
2 seconds at 40 × rated current
continuous at 3 × rated current
SENSITIVE GROUND CURRENT INPUT
CT Primary: ............................................................1 to 600 A
Range:......................................................................0.002 to 3 × CT
Input type:..............................................................1 A or 5 A (must be specified with order P1S1 or P5S5)
Configurable 1 A or 5 A (must be specified with order P0S0)
Nominal frequency:...........................................50/60 Hz
Burden:....................................................................<0.1 VA at rated load
Accuracy:................................................................±1% of reading at 0.1× CT
±3% of reading from 0.02 to 3 × CT
±20% of reading from 0.002 to 0.019 × CT
CT withstand:........................................................ 1 second at 100 × rated current
2 seconds at 40 × rated current
continuous at 3 × rated current
Data capture
TRANSIENT RECORDER
Buffer size: .............................................................3 s
No. of buffers:......................................................1x192, 3x64, 6x32
No. of channels:..................................................14
Sampling rate:......................................................32 samples per cycle
Triggers: ..................................................................Manual Command
Contact Input
Virtual Input
Logic Element
Element Pickup/Trip/Dropout/Alarm
Data: .........................................................................AC input channels
Contact input state
Contact output state
Virtual input state
Logic element state
Data storage:........................................................RAM - battery backed-up; retained for 3 days
EVENT RECORDER
Number of events:..............................................256
Header:.................................................................... relay name, order code, firmware revision
Content:...................................................................event number, date of event, cause of event, per-phase
current, ground current, sensitive ground current, neutral
current, ground differential current, negative sequence
current, restraint current, per-phase differential current,
per-phase differential second harmonic current, thermal
capacity
Data Storage: .......................................................RAM - battery backed up; retained for 3 days
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CHAPTER 1: INTRODUCTION SPECIFICATIONS
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–11
CLOCK
Setup:........................................................................Date and time
Daylight Saving Time
IRIG-B:.......................................................................Auto-detect (DC shift or Amplitude Modulated)
Amplitude modulated: 1 to 10 V pk-pk
DC shift: 1 to 10 V DC
Input impedance: 40 kOhm ± 10%
RTC Accuracy: ± 1 min / month at 25°C
Controls
LOGIC ELEMENTS
Number of logic elements: .............................16
Trigger source inputs per element: ............3
Block inputs per element: ...............................3
Supported operations: .....................................AND, OR, NOT, Pickup / Dropout timers
Pickup timer:..........................................................0 to 60000 ms in steps of 1 ms
Dropout timer:......................................................0 to 60000 ms in steps of 1 ms
BREAKER FAILURE
Pickup Level:..........................................................0.05 to 20.00 x CT in steps of 0.01 x CT
Dropout Level: ......................................................97 to 98% of pickup
Timer 1 Delay: ......................................................0.03 to 1.00 s in steps of 0.01 s
Timer 2 Delay: ......................................................0.00 to 1.00 s in steps of 0.01 s
Time Delay Accuracy:.......................................0 to 1 cycle (Timer 1, Timer 2)
Level Accuracy:....................................................per CT input
AMBIENT TEMPERATURE
High Temperature Pickup:..............................20°C to 80°C in steps of 1°C
Low Temperature Pickup: ...............................-40°C to 20°C in steps of 1°C
Time Delay:............................................................1 to 60 min in steps of 1 min
Temperature Dropout:......................................Configurable 90 to 98% of pickup
Temperature Accuracy: ...................................±10°C
Timing Accuracy: ................................................±1 second
Inputs/Outputs
CONTACT INPUTS
Inputs:.......................................................................10
Selectable thresholds: ......................................17, 33, 84, 166 VDC
Recognition time:................................................1/2 cycle
Debounce time: ...................................................1 to 64 ms, selectable, in steps of 1 ms
Maximum input voltage & continuous
current draw:...................................................300 VDC, 2 mA, connected to Class 2 source
Type:..........................................................................opto-isolated inputs
External switch: ...................................................wet contact
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1–12 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
FORM-A RELAYS
Configuration: ......................................................2 (two) electromechanical
Contact material:................................................silver-alloy
Operate time:........................................................<8 ms
Continuous current:...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):.................24 V / 1 A
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
Break (DC resistive): ...........................................24 V / 10 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
Break (AC inductive):..........................................720 VA @ 250 VAC Pilot duty A300
Break (AC resistive):............................................277 VAC / 10 A
FORM-A VOLTAGE MONITOR
Applicable voltage: ............................................20 to 250 VDC
Trickle current: .....................................................1 to 2.5 mA
FORM-C RELAYS
Configuration: ......................................................5 (five) electromechanical
Contact material:................................................silver-alloy
Operate time:........................................................<8 ms
Continuous current:...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):.................24 V / 1 A
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
Break (DC resistive): ...........................................24 V / 10 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
Break (AC inductive):..........................................720 VA @ 250 VAC Pilot duty A300
Break (AC resistive):............................................277 VAC / 10 A
TRIP SEAL-IN
Relay 1 trip seal-in: ............................................0.00 to 9.99 s in steps of 0.01
Relay 2 trip seal-in: ............................................0.00 to 9.99 s in steps of 0.01
Power supply
HIGH RANGE POWER SUPPLY
Nominal:..................................................................120 to 240 VAC
125 to 250 VDC
Range:......................................................................60 to 300 VAC (50 and 60 Hz)
84 to 300 VDC
Ride-through time:............................................. 35 ms
LOW RANGE POWER SUPPLY
Nominal:..................................................................24 to 48 VDC
Range:......................................................................20 to 60 VDC
ALL RANGES
Voltage withstand:.............................................2 × highest nominal voltage for 10 ms
Power consumption: .........................................15 W nominal, 20 W maximum
20 VA nominal, 28 VA maximum
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CHAPTER 1: INTRODUCTION SPECIFICATIONS
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–13
Communications
SERIAL
RS485 port: ............................................................Opto-coupled
Baud rates:.............................................................up to 115 kbps
Response time:.....................................................1 ms typical
Parity:........................................................................None, Odd, Even
Protocol: ..................................................................Modbus RTU, DNP 3.0, IEC 60870-5-103
Maximum distance: ...........................................1200 m (4000 feet)
Isolation:..................................................................2 kV
ETHERNET (COPPER)
Modes:......................................................................10/100 MB (auto-detect)
Connector:..............................................................RJ-45
Protocol: ..................................................................Modbus TCP, DNP3.0, iec 60870-5-104, IEC 61850 GOOSE
ETHERNET (FIBER)
Fiber type:...............................................................100 MB Multi-mode
Wavelength: ..........................................................1300 nm
Connector:..............................................................MTRJ
Protocol: ..................................................................Modbus TCP, DNP3.0, iec 60870-5-104, IEC 61850 GOOSE
Transmit power:...................................................-20 dBm
Receiver sensitivity:............................................-31 dBm
Power budget: ......................................................9 dB
Maximum input power:....................................-11.8 dBm
Typical distance:..................................................2 km (1.25 miles)
Duplex:.....................................................................half/full
USB
Standard specification:....................................Compliant with USB 2.0
Data transfer rate:..............................................115 kbps
Testing and certification
TESTING AND CERTIFICATION
TEST REFERENCE STANDARD TEST LEVEL
Dielectric voltage withstand 2.3KV
Impulse voltage withstand EN60255-5 5KV
Damped Oscillatory IEC61000-4-18IEC60255-22-1 2.5KV CM, 1KV DM
Electrostatic Discharge EN61000-4-2/IEC60255-22-2 Level 4
RF immunity EN61000-4-3/IEC60255-22-3 Level 3
Fast Transient Disturbance EN61000-4-4/IEC60255-22-4 Class A and B
Surge Immunity EN61000-4-5/IEC60255-22-5 Level 3 & 4
Conducted RF Immunity EN61000-4-6/IEC60255-22-6 Level 3
Power Frequency Immunity EN61000-4-7/IEC60255-22-7 Class A & B
Voltage interruptionand
Ripple DC IEC60255-11 15% ripple , 200ms interupts
Radiated & Conducted
Emissions CISPR11 /CISPR22/ IEC60255-25 Class A
Sinusoidal Vibration IEC60255-21-1 Class 1
Shock & Bump IEC60255-21-2 Class 1
Siesmic IEC60255-21-3 Class 2
Power magnetic Immunity IEC61000-4-8 Level 5
Pulse Magnetic Immunity IEC61000-4-9 Level 4
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1–14 345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
DIMENSIONS
Size: ........................................................................... Refer to Chapter 2
Weight: ....................................................................4.1 kg [9.0 lb]
Damped Magnetic Immunity IEC61000-4-10 Level 4
Voltage Dip & interruption IEC61000-4-11 0,40,70,80% dips,250/300cycle
interrupts
Damped Oscillatory IEC61000-4-12 2.5KV CM, 1KV DM
Conducted RF Immunity 0-
150khz IEC61000-4-16 Level 4
Voltage Ripple IEC61000-4-17 15% ripple
Ingress Protection IEC60529 IP40 front , IP10 Back
Environmental (Cold) IEC60068-2-1 -40C 16 hrs
Environmental (Dry heat) IEC60068-2-2 85C 16hrs
Relative Humidity Cyclic IEC60068-2-30 6day variant 2
EFT IEEE/ANSI C37.90.1 4KV, 2.5Khz
Damped Oscillatrory IEEE/ANSI C37.90.1 2.5KV,1Mhz
RF Immunity IEEE/ANSIC37.90.2 20V/m 80-1Ghz
ESD IEEE/ANSIC37.90.3 8KV CD/ 15KV AD
UL508 e83849 NKCR
Safety UL C22.2-14 e83849 NKCR7
UL1053 e83849 NKCR
APPROVALS
Applicable Council Directive According to
Low voltage directive EN60255-5 / EN60255-27 / EN61010-1
CE compliance EMC Directive EN60255-26 / EN50263
EN61000-6-2
UL508
North America cULus UL1053
C22.2.No 14
ISO Manufactured under a registered
quality program ISO9001
ENVIRONMENTAL SPECIFICATIONS
Ambient temperatures:
Storage/Shipping: - 40C to 85C
Operating: -40C to 60C
Humidity Operating up to 95% (non condensing) @ 55C (As per
IEC60068-2-30 Variant 2, 6days)
Altitude: 2000m (max)
Pollution Degree: II
Overvoltage Category: III
Ingress protection: IP40 Front , IP10 back
TESTING AND CERTIFICATION
TEST REFERENCE STANDARD TEST LEVEL
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