Product guide, RET670 1.2 ANSI customized

109 Pages·2015·5.17 MB·English

Relion® 670 series
Transformer protection RET670 ANSI
Customized
Product Guide
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

Contents
1. Application.........................................................................3 12. Logic..............................................................................19
2. Available functions.............................................................4 13. Monitoring......................................................................19
3. Differential protection.........................................................8 14. Metering.........................................................................21
4. Impedance protection......................................................10 15. Basic IED functions.........................................................21
5. Current protection............................................................13 16. Human machine interface...............................................21
6. Voltage protection............................................................15 17. Station communication ..................................................22
7. Frequency protection.......................................................16 18. Remote communication..................................................22
8. Multipurpose protection...................................................16 19. Hardware description......................................................23
9. Secondary system supervision.........................................16 20. Connection diagrams......................................................26
10. Control...........................................................................17 21. Technical data................................................................34
11. Scheme communication.................................................18 22. Ordering.........................................................................89
Disclaimer
The information in this document is subject to change without notice and should not be construed as a commitment by ABB. ABB assumes no responsibility for any errors
that may appear in this document.
© Copyright 2012 ABB.
All rights reserved.
Trademarks
ABB and Relion are registered trademarks of the ABB Group. All other brand or product names mentioned in this document may be trademarks or registered trademarks
of their respective holders.
2 ABB
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2 Issued: February 2015
Revision: D
1. Application The binary inputs are heavily stabilized against disturbances to
RET670 provides fast and selective protection, monitoring and prevent incorrect operations during for example during DC
control for two- and three-winding transformers, system capacitive discharges or DC ground faults.
autotransformers, generator-transformer units, phase shifting
transformers, special railway transformers and shunt reactors.
Distance protection functionality for phase-to-phase and/or
The transformer IED is designed to operate correctly over a
phase-to-ground faults is available as back-up protection for
wide frequency range in order to accommodate power system
faults within the transformer and in the connected power
frequency variations during disturbances and generator start-up
system.
and shut-down.
Versatile phase, ground, positive, negative and zero sequence
A very fast differential protection function with settable CT ratio
overcurrent functions, which can optionally be made directional
matching and phase shift compensation makes this IED the
and/or voltage controlled, provide further alternative backup
ideal solution even for the most demanding applications. Since
protection. Thermal overload with two time-constants, volts per
RET670 has very low requirements on the main CTs, no
hertz, over/under voltage and over/under frequency protection
interposing CTs are required.It is suitable for differential
functions are also available.
applications with multi-breaker arrangements with up to six
restraint CT inputs. The differential protection function is A built-in disturbance and event recorder provides valuable data
provided with 2nd harmonic and wave-block restraint features to the user about status and operation for post-fault
to avoid tripping for magnetizing inrush current, and 5th disturbance analysis.
harmonic restraint to avoid tripping for overexcitation.
Breaker failure protection for each transformer breaker allows
The differential function offers a high sensitivity for low-level high speed back-up tripping of surrounding breakers.
internal faults. The unique and innovative sensitive differential
protection feature of the RET670 provides the best possible The transformer IED can also be provided with a full control and
coverage for winding internal turn-to-turn faults, based on the interlocking functionality including Synchrocheck function to
theory of symmetrical components . allow integration of the main and/or a local back-up control.
A low impedance restricted ground-fault protection function is Out of Step function is available to separate power system
available as a complimentary sensitive and fast main protection sections close to electrical centre at occurring out of step.
against winding ground faults. This function includes a
The advanced logic capability, where user logic is prepared with
directional zero-sequence current criterion for additional
a graphical tool, allows special applications such as automatic
security.
opening of disconnectors in multi-breaker arrangements,
Additionally a high impedance differential function is available. It closing of breaker rings, load transfer logic and so on. The
can be used as restricted ground fault or, as three functions are graphical configuration tool ensures simple and fast testing and
included, also as differential protection on autotransformers, as commissioning.
differential protection for a tertiary connected reactor, as T-
Serial data communication is via optical connections to ensure
differential protection for the transformer feeder in a mesh-
immunity against disturbances.
corner or ring arrangement, as tertiary bus protection and so on.
The wide application flexibility makes this product an excellent
Tripping from pressure relief/Buchholz and temperature devices
choice for both new installations and the refurbishment of
can be done through the transformer IED where pulsing, lock-
existing installations.
out contact output and so on, is performed. The binary inputs
are heavily stabilized against disturbance to prevent incorrect
operations at for example dc system capacitive discharges or
DC ground faults.
ABB 3
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

2. Available functions
Main protection functions
2 = number of basic instances
0-3 = option quantities
IEC 61850 ANSI Function description Transformer
RET670
Differential protection
T2WPDIF 87T Transformer differential protection, two winding 1-2
T3WPDIF 87T Transformer differential protection, three winding 1-2
HZPDIF 87 1Ph high impedance differential protection 0-6
REFPDIF 87N Restricted earth fault protection, low impedance 0-3
Impedance protection
ZMQPDIS, 21 Distance protection zone, quadrilateral characteristic 0-5
ZMQAPDIS
ZDRDIR 21D Directional impedance quadrilateral 0-2
ZMCPDIS, 21 Distance characteristic for series compensated lines 0-5
ZMCAPDIS
FDPSPDIS 21 Phase selection, quadrilateral characteristic with fixed angle 0-2
ZMHPDIS 21 Full-scheme distance protection, mho characteristic 0-5
ZMMPDIS, 21 Full-scheme distance protection, quadrilaterial for ground faults 0-5
ZMMAPDIS
ZDMRDIR 21D Directional impedance element for mho characteristic 0-2
ZDARDIR Additional distance protection directional function for ground fault 0-1
ZSMGAPC Mho impedance supervision logic 0-1
FMPSPDIS 21 Faulty phase identification with load enchroachment 0-2
ZMRPDIS, 21 Distance protection zone, quadrilateral characteristic, separate settings 0-5
ZMRAPDIS
FRPSPDIS 21 Phase selection, quadrilateral characteristic with settable angle 0-2
ZMRPSB 78 Power swing detection 0-1
ZMRPSL Power swing logic 0-1
PSPPPAM 78 Pole slip/out-of-step protection 0-1
PPLPHIZ Phase preference logic 0-1
4 ABB
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

Back-up protection functions
IEC 61850 ANSI Function description Transformer
RET670
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection 0-8
OC4PTOC 51_67 Four step phase overcurrent protection 0-8
EFPIOC 50N Instantaneous residual overcurrent protection 0-8
EF4PTOC 51N_67 Four step residual overcurrent protection 0-8
N
NS4PTOC 46I2 Four step directional negative phase sequence overcurrent protection 0-8
SDEPSDE 67N Sensitive directional residual overcurrent and power protection 0-3
LPPTR 26 Thermal overload protection, one time constant 0–2
TRPTTR 49 Thermal overload protection, two time constant 0-6
CCRBRF 50BF Breaker failure protection 0-6
CCRPLD 52PD Pole discordance protection 0-2
GUPPDUP 37 Directional underpower protection 0-2
GOPPDOP 32 Directional overpower protection 0-2
BRCPTOC 46 Broken conductor check 1
CBPGAPC Capacitor bank protection 0-6
NS2PTOC 46I2 Negative sequence time overcurrent protection for machines 0-2

Voltage protection
UV2PTUV 27 Two step undervoltage protection 0-3
OV2PTOV 59 Two step overvoltage protection 0-3
ROV2PTOV 59N Two step residual overvoltage protection 0-3
OEXPVPH 24 Overexcitation protection 0-2
VDCPTOV 60 Voltage differential protection 0-2
LOVPTUV 27 Loss of voltage check 1

Frequency protection
SAPTUF 81 Underfrequency protection 0-6
SAPTOF 81 Overfrequency protection 0-6
SAPFRC 81 Rate-of-change frequency protection 0-6

Multipurpose protection
CVGAPC General current and voltage protection 0-12
ABB 5
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

Control and monitoring functions
IEC 61850 ANSI Function description Transformer
RET670
Control
SESRSYN 25 Synchrocheck, energizing check and synchronizing 0-6
APC30 3 Apparatus control for up to 6 bays, max 30 apparatuses (6CBs) incl. interlocking 0-1
QCBAY Apparatus control 1+5/APC30
LOCREM Handling of LRswitch positions 1+5/APC30
LOCREMCTR LHMI control of PSTO 1+5/APC30
L
TR1ATCC 90 Automatic voltage control for tap changer, single control 0-4
TR8ATCC 90 Automatic voltage control for tap changer, parallel control 0-4
TCMYLTC 84 Tap changer control and supervision, 6 binary inputs 0-4
TCLYLTC 84 Tap changer control and supervision, 32 binary inputs 0-4
SLGGIO Logic rotating switch for function selection and LHMI presentation 15
VSGGIO Selector mini switch 20
DPGGIO IEC61850 generic communication I/O functions 16
SPC8GGIO Single pole generic control 8 signals 5
AutomationBits AutomationBits, command function for DNP3.0 3
SingleComma Single command, 16 signals 4
nd16Signals
VCTRSend Horizonal communication via GOOSE for VCTR 1
VCTR Horizontal communication via GOOSE for VCTR 7
Receive

Secondary system supervision
CCSRDIF 87 Current circuit supervision 0-5
SDDRFUF Fuse failure supervision 0-4

Logic
SMPPTRC 94 Tripping logic 1-6
TMAGGIO Trip matrix logic 12
Configuration logic blocks 40-280
FixedSignals Fixed signal function block 1
B16I Boolean 16 to Integer conversion 16
B16IFCVI Boolean 16 to Integer conversion with Logic Node representation 16
IB16 Integer to Boolean 16 conversion 16
IB16FCVB Integer to Boolean 16 conversion with Logic Node representation 16
6 ABB
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

IEC 61850 ANSI Function description Transformer
RET670

Monitoring
CVMMXN Measurements 6
EVENT Event function 20
DRPRDRE Disturbance report 1
SPGGIO IEC61850 generic communication I/O functions 64
SP16GGIO IEC61850 generic communication I/O functions 16 inputs 16
MVGGIO IEC61850 generic communication I/O functions 24
BSStatReport Logical signal status report 3
RANGE_XP Measured value expander block 66

Metering
PCGGIO Pulse-counter logic 16
ETPMMTR Function for energy calculation and demand handling 6
Designed to communicate
IEC 61850 ANSI Function description Transformer
RET670
Station communication
SPA communication protocol 1
LON communication protocol 1
IEC60870-5-103 communication protocol 20/1
Operation selection between SPA and IEC60870-5-103 for SLM 1
DNP3.0 for TCP/IP and EIA-485 communication protocol 1
DNP3.0 fault records for TCP/IP and EIA-485 communication protocol 1
Parameter setting function for IEC61850 1
IntlReceive Horizontal communication via GOOSE for interlocking 59
Goose binary receive 10
Multiple command and transmit 60/10
Ethernet configuration of links 1
IEC 62439-3 Edition 1 parallel redundancy protocol 0-1
IEC 62439-3 Edition 2 parallel redundancy protocol 0-1
Scheme communication
ECPSCH 85 Scheme communication logic for residual overcurrent protection 0-1
ECRWPSCH 85 Current reversal and weak-end infeed logic for residual overcurrent protection 0-1
ABB 7
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

Basic IED functions
IEC 61850 Function description
Basic functions included in all products
IntErrorSig Self supervision with internal event list 1
TIME Time and synchronization error 1
TimeSynch Time synchronization 1
ActiveGroup Parameter setting groups 1
Test Test mode functionality 1
ChangeLock Change lock function 1
TerminalID IED identifiers 1
Productinfo Product information 1
MiscBaseCommon Misc Base Common 1
IEDRuntimeComp IED Runtime Comp 1
RatedFreq Rated system frequency 1
SMBI Signal Matrix for binary inputs 40
SMBO Signal Matrix for binary outputs 40
SMMI Signal Matrix for mA inputs 4
SMAI Signal Matrix for analog inputs 36
Sum3Ph Summation block 3 phase 18
LocalHMI Parameter setting function for HMI in PCM600 1
LocalHMI Local HMI signals 1
AuthStatus Authority status 1
AuthorityCheck Authority check 1
AccessFTP FTP access with password 1
SPACommMap SPA communication mapping 1
DOSFRNT Denial of service, frame rate control for front port 1
DOSOEMAB Denial of service, frame rate control for OEM port AB 1
DOSOEMCD Denial of service, frame rate control for OEM port CD 1
3. Differential protection The function can be provided with up to three-phase sets of
current inputs. All current inputs are provided with percentage
Transformer differential protection T2WPDIF/T3WPDIF (87T)
bias restraint features, making the IED suitable for two- or three-
The Transformer differential protection, two-winding (T2WPDIF,
winding transformer in multi-breaker station arrangements.
87T) and Transformer differential protection, three-winding
(T3WPDIF, 87T) are provided with internal CT ratio matching
and phase shift compensation and settable zero sequence
current elimination.
8 ABB
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

Two-winding applications two–winding power transformer with two circuit
breakers and two CT-sets on both sides
Three-winding applications
152 352
452
xx05000048_ansi.vsd
ANSI05000048 V1 EN
two-winding power transformer
152 352
152 352
xx05000052_ansi.vsd
ANSI05000052 V1 EN
xx05000049_ansi.vsd
three–winding power transformer with all three
ANSI05000049 V1 EN
windings connected
two-winding power transformer with
unconnected delta tertiary winding
452
152
152
352 352
252 252
xx05000050_ansi.vsd xx05000053_ansi.vsd
ANSI05000050 V1 EN ANSI05000053 V1 EN
two–winding power transformer with two circuit three–winding power transformer with two circuit
breakers on one side breakers and two CT-sets on one side
152 252
552
152 352
352 452
xx05000057_ansi.vsd
252 452
ANSI05000057 V1 EN
Autotransformer with two circuit breakers and
two CT-sets on two out of three sides
Figure 1. CT group arrangement for
xx05000051_ansi.vsd differential protection and other
protections
ANSI05000051 V1 EN
ABB 9
Transformer protection RET670 ANSI 1MRK504117-BUS D
Customized
Product version: 1.2

The setting facilities cover the application of the differential
protection to all types of power transformers and auto- CT CT
YNdx
transformers with or without load tap changer as well as shunt CT CB CB
Y d
reactors and local feeders within the station. An adaptive CB CB
stabilizing feature is included for heavy through-faults.By
Autotransformer
introducing the load tap changer position, the differential CT
IED
protection pick-up can be set to optimum sensitivity thus
covering internal faults with low fault level.
The most typical CT CB CB CT
Harmonic restraint is included for inrush and overexcitation application
The most complicated
currents respectively. Adaptive stabilization is also included for application -autotransformer
system recovery inrush and CT saturation during external faults. IEC05000058-2-en.vsd
A high set unrestrained differential current protection element is IEC05000058-2 V1 EN
included for a very high speed tripping at a high internal fault Figure 2. Examples of applications of the REFPDIF
currents.
Included is an innovative sensitive differential protection element
based on the theory of symmetrical components. This element
offers the best possible coverage of power transformer 152 252
windings turn to turn faults.
1Ph High impedance differential protection HZPDIF (87)
The 1Ph High impedance differential protection (HZPDIF, 87)
function can be used when the involved CTs have the same
turns ratio and similar magnetizing characteristics. It utilizes an
external CT current summation by wiring, a series resistor, and
a voltage dependent resistor which are mounted externally
connected to the IED.
352 452
HZPDIF (87) can be used to protect tee-feeders or busbars. Six
single phase function blocks are available to allow application
for two three-phase zones busbar protection. xx05000058_ansi.vsd
ANSI05000058 V1 EN
Restricted earth-fault protection, low impedance REFPDIF (87N)
Figure 3. Autotransformer low impedance REFPDIF (87N)
Restricted fault protection, low-impedance function (REFPDIF,
87N) can be used on all solidly or low-impedance grounded
windings. The REFPDIF (87N) function provides high sensitivity
and high speed tripping as it protects each winding separately
4. Impedance protection
and thus does not need inrush stabilization.
Distance measuring zone, quadrilateral characteristic
The low-impedance function is a percentage biased function
ZMQPDIS, ZMQAPDIS (21)
with an additional zero sequence current directional comparison
The line distance protection is a five zone full scheme protection
criterion. This gives excellent sensitivity and stability during
with three fault loops for phase-to-phase faults and three fault
through faults.
loops for phase-to-ground faults for each of the independent
zones. Individual settings for each zone in resistive and reactive
REFPDIF can also protect autotransformers. In this case, the
reach gives flexibility for use as back-up protection for
negative sequence current directional comparison must be
transformer connected to overhead lines and cables of different
used. The most typical and the most complicated configuration
types and lengths.
of an autotransformer is shown in figure 2. Five currents are
measured in the case illustrated in figure 2.
ZMQPDIS (21) together with Phase selection with load
encroachment FDPSPDIS (21) has functionality for load
encroachment, which increases the possibility to detect high
resistive faults on heavily loaded lines.
10 ABB