ABB REL650 series User manual

Category
Measuring, testing & control
Type
User manual

This manual is also suitable for

Relion
®
650 series
Breaker protection REQ650 ANSI
Product Guide
Contents
1. 650 series overview.................................................3
2. Application...............................................................3
3. Available functions..................................................6
4. Current protection.................................................16
5. Voltage protection.................................................19
6. Frequency protection............................................19
7. Secondary system supervision.............................20
8. Control...................................................................21
9. Logic......................................................................22
10. Monitoring............................................................24
11. Metering...............................................................26
12. Human Machine interface....................................27
13. Basic IED functions..............................................27
14. Station communication........................................28
15. Hardware description...........................................30
16. Connection diagrams...........................................32
17. Technical data......................................................42
18. Ordering................................................................84
Disclaimer
The information in this document is subject to change without notice and should not be construed as a commitment by ABB AB. ABB AB assumes no
responsibility for any errors that may appear in this document.
© Copyright 2011 ABB Inc..
All rights reserved.
Trademarks
ABB and Relion are registered trademarks of ABB Group. All other brand or product names mentioned in this document may be trademarks or
registered trademarks of their respective holders.
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
2 ABB
1. 650 series overview
The 650 series IEDs provide optimum 'off-the-
shelf', ready-to-use solutions. It is configured
with complete protection functionality and
default parameters to meet the needs of a wide
range of applications for generation
transmission and sub-transmission grids.
The 650 series IEDs include:
• Complete ready to use solutions optimized
for a wide range of applications for
generation, transmission and sub-
transmission grids.
• Support for user-defined names in the local
language for signal and function engineering.
• Minimized parameter settings based on
default values and ABB's new global base
value concept. You only need to set those
parameters specific to your own application,
such as the line data.
• GOOSE messaging for horizontal
communication.
• Extended HMI functionality with 15 dynamic
three-color-indication LEDs per page, on up
to three pages, and configurable push-button
shortcuts for different actions.
• Programmable LED text-based labels.
• Settable 1A/5A -rated current inputs.
2. Application
Breaker protection REQ650 provides a
standalone solution for applications, where
synchronism check controlled closing of the
circuit breaker is required, but the integration
of the automatic reclosing function into the
main line protection IED is not preferred or
suitable. The advanced automatic reclosing,
synchronizing, synchrocheck and energizing
check functions of REQ650 provides an
optimized stand alone product. This IED also
enables well-structured and reliable protection
and control systems especially in systems
where complete bay control functionality
including interlocking is not required.
REQ650 provides backup to the main
protection with redundant protection and
control functions.
Three pre-configured packages have been
defined for following applications:
• Backup protection functions in a breaker
bay giving three-phase trip (A01A). The
connection of the bay is to a single or
double busbar section.
• A breaker bay connecting a transmission
line, with back-up protection functions
enabling single phase trip (A11A). The
connection of the bay is only to a single
busbar section.
• A breaker bay connecting a transmission
line, with back-up protection functions
enabling single phase trip (B11A). The
connection of the bay can be made to the
double busbar sections.
The backup protection is mainly based on
current and voltage based functions. In line
protection applications, autoreclosing with or
without synchronism check is available.
The package is delivered pre-configured and
ready for use in the power system. Analogue
inputs and binary inputs/outputs circuits are pre-
defined.
The pre-configured IED can be modified and
adapted to suit specific applications with the
graphical configuration tool, using the glue
logic and adjusting the parameter settings.
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
Revision: -
ABB 3
REQ650-A01A – Single Busbar Single breaker 10AI (4I+1I+5U)
Three phase variant
SMB RREC
79 0->1
SMP PTRC
94 1->0
SES RSYN
25 SYNC
TCS SCBR
Cond
SPVN ZBAT
Cond
Other configured functions
OV2 PTOV
59 3U>
PH PIOC
50 3I>>
CC RBRF
50BF
V MMXU
Meter.
C MMXU
Meter.
ETP MMTR
Wh<->
BKR1
189
989
989G
389G
289G
EF4 PTOC
51N/67N
IN>
WA1
C MSQI
Meter.
V MSQI
Meter.
CV MMXN
Meter.
CC RPLD
52PD
DRP RDRE
Mont.
V MMXU
Meter.
IEC61850
ANSI IEC
Function Enabled
in Settings
DNP
ANSI IEC
Function Disabled in Settings
132 kV Bus
1000/1
132kV/110V
132kV/110V
OC4 PTOC
51/67 3I>
ANSI11000142_1_en.vsd
SDE PSDE
67N IN<->
L PTTR
26
BRC PTOC
46 Iub
SDD RFUF
60FL
S SCBR
Cond
S SIMG
63
>
IEC60870-5-103
ANSI IEC
ANSI11000142 V1 EN
Figure 1. A typical backup protection functions in a breaker bay giving three-phase trip
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
4 ABB
BKR1
189
289
989
989G
389G
289G
WA1
WA2
132 kV Bus
132kV/110V
132kV/
110V
132kV/
110V
REQ650-B11A – Double Busbar Single breaker 10AI (4I+1I+5U)
Single phase variant
STB RREC
79 0->1
SPT PTRC
94 1->0
SES RSYN
25 SYNC
ETP MMTR
Wh<->
EF4 PTOC
51N/67N
IN>
CV MMXN
Meter.
OC4S PTOC
51/67 3I>
SDE PSDE
67N IN<->
L PTTR
26
BRC PTOC
46 Iub
SDD RFUF
60FL
S SCBR
Cond
SPT PIOC
50 I>>
CSP RBRF
50BF
C MMXU
Meter.
C MSQI
Meter.
CC RPLD
52PD
V MMXU
Meter.
OV2 PTOV
59 3U>
V MMXU
Meter.
V MSQI
Meter.
TCS SCBR
Cond
SPVN ZBAT
Cond
Other configured functions
DRP RDRE
Mont.
IEC61850
ANSI IEC
Function Enabled
in Settings
ANSI11000143_1_en.vsd
TCS SCBR
Cond
TCS SCBR
Cond
V MMXU
Meter.
S SIMG
63
>
DNP
ANSI IEC
Function Disabled in Settings
IEC60870-5-103
ANSI IEC
ANSI11000143 V1 EN
Figure 2. A typical breaker bay connecting a transmission line, with back-up protection functions
enabling single phase trip. The connection of the bay is only to a single busbar section
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 5
BKR1
189
289
989
989G
389G
289G
WA1
WA2
132 kV Bus
132kV/110V
132kV/
110V
132kV/
110V
REQ650-B11A – Double Busbar Single breaker 10AI (4I+1I+5U)
Single phase variant
STB RREC
79 0->1
SPT PTRC
94 1->0
SES RSYN
25 SYNC
ETP MMTR
Wh<->
EF4 PTOC
51N/67N
IN>
CV MMXN
Meter.
OC4S PTOC
51/67 3I>
SDE PSDE
67N IN<->
L PTTR
26
BRC PTOC
46 Iub
SDD RFUF
60FL
S SCBR
Cond
SPT PIOC
50 I>>
CSP RBRF
50BF
C MMXU
Meter.
C MSQI
Meter.
CC RPLD
52PD
V MMXU
Meter.
OV2 PTOV
59 3U>
V MMXU
Meter.
V MSQI
Meter.
TCS SCBR
Cond
SPVN ZBAT
Cond
Other configured functions
DRP RDRE
Mont.
IEC61850
ANSI IEC
Function Enabled
in Settings
ANSI11000144_1_en.vsd
TCS SCBR
Cond
TCS SCBR
Cond
V MMXU
Meter.
S SIMG
63
>
DNP
ANSI IEC
Function Disabled in Settings
IEC60870-5-103
ANSI IEC
ANSI11000144 V1 EN
Figure 3. A typical breaker bay connecting a transmission line, with back-up protection functions
enabling single phase trip. The connection of the bay can be made to one of the double
busbar sections
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
6 ABB
3. Available functions
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 7
Back-up protection functions
IEC 61850/
Function
block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
Current protection
PHPIOC 50 Instantaneous phase overcurrent protection 1
SPTPIOC 50 Instantaneous phase overcurrent protection 1 1
OC4PTOC 51/67 Four step directional phase overcurrent
protection
1
OC4SPTOC 51/67 Four step phase overcurrent protection 1 1
EFPIOC 50N Instantaneous residual overcurrent
protection
1 1 1
EF4PTOC 51N/
67N
Four step directional residual overcurrent
protection
1 1 1
SDEPSDE 67N Sensitive directional residual overcurrent
and power protection
1 1 1
LPTTR 26 Thermal overload protection, one time
constant
1 1 1
CCRBRF 50BF Breaker failure protection 1
CSPRBRF 50BF Breaker failure protection 1 1
STBPTOC 50STB Stub protection 1 1 1
CCRPLD 52PD Pole discordance protection 1 1 1
BRCPTOC 46 Broken conductor check 1 1 1
GUPPDUP 37 Directional underpower protection 1 1 1
GOPPDOP 32 Directional overpower protection 1 1 1
DNSPTOC 46 Negative sequence based overcurrent
function
1 1 1
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
8 ABB
IEC 61850/
Function
block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
Voltage protection
UV2PTUV 27 Two step undervoltage protection 1 1 1
OV2PTOV 59 Two step overvoltage protection 1 1 1
ROV2PTOV 59N Two step residual overvoltage protection 1 1 1
LOVPTUV 27 Loss of voltage check 1 1 1
Frequency protection
SAPTUF 81 Underfrequency function 2 2
2
SAPTOF 81 Overfrequency function 2 2 2
SAPFRC 81 Rate-of-change frequency protection 2 2 2
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 9
Control and monitoring functions
IEC 61850/
Function block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
Control
SESRSYN 25 Synchrocheck, energizing check, and
synchronizing
1 1 1
SMBRREC 79 Autorecloser 1
STBRREC 79 Autorecloser 1 1
QCBAY Bay control 1 1 1
LOCREM Handling of LR-switch positions 1 1 1
LOCREMCTRL LHMI control of Permitted Source To
Operate (PSTO)
1 1 1
SLGGIO Logic Rotating Switch for function
selection and LHMI presentation
15 15 15
VSGGIO Selector mini switch extension 20 20 20
DPGGIO IEC 61850 generic communication I/O
functions double point
16 16 16
SPC8GGIO Single point generic control 8 signals 5 5 5
AUTOBITS AutomationBits, command function for
DNP3.0
3 3 3
I103CMD Function commands for IEC60870-5-103 1 1 1
I103IEDCMD IED commands for IEC60870-5-103 1 1 1
I103USRCMD Function commands user defined for
IEC60870-5-103
4 4 4
I103GENCMD Function commands generic for
IEC60870-5-103
50 50 50
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
10 ABB
IEC 61850/
Function block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
I103POSCMD IED commands with position and select
for IEC60870-5-103
50 50 50
Secondary system supervision
CCSRDIF 87 Current circuit supervision 1 1 1
SDDRFUF Fuse failure supervision 1 1 1
TCSSCBR Breaker close/trip circuit monitoring 3 3 3
Logic
SMPPTRC 94 Tripping logic 1
SPTPTRC 94 Tripping logic 1 1
TMAGGIO Trip matrix logic 12 12 12
OR Configurable logic blocks, OR gate 283 283 283
INVERTER Configurable logic blocks, Inverter gate 140 140 140
PULSETIMER Configurable logic blocks, Pulse timer 40 40 40
GATE Configurable logic blocks, Controllable
gate
40 40 40
XOR Configurable logic blocks, exclusive OR
gate
40 40 40
LOOPDELAY Configurable logic blocks, loop delay 40 40 40
TIMERSET Configurable logic blocks, timer
function block
40 40 40
AND Configurable logic blocks, AND gate 280 280 280
SRMEMORY Configurable logic blocks, set-reset
memory flip-flop gate
40 40 40
RSMEMORY Configurable logic blocks, reset-set
memory flip-flop gate
40 40 40
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 11
IEC 61850/
Function block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
FXDSIGN Fixed signal function block 1 1 1
B16I Boolean 16 to Integer conversion 16 16 16
B16IFCVI Boolean 16 to Integer conversion with
logic node representation
16 16 16
IB16A Integer to Boolean 16 conversion 16 16 16
IB16FCVB Integer to Boolean 16 conversion with
logic node representation
16 16 16
Monitoring
CVMMXN Measurements 6 6 6
CMMXU Phase current measurement 10 10 10
VMMXU Phase-phase voltage measurement 6 6 6
CMSQI Current sequence component
measurement
6 6 6
VMSQI Voltage sequence measurement 6 6 6
VNMMXU Phase-neutral voltage measurement 6 6 6
CNTGGIO Event counter 5 5 5
DRPRDRE Disturbance report 1 1 1
AxRADR Analog input signals 4 4 4
BxRBDR Binary input signals 6 6 6
SPGGIO IEC 61850 generic communication I/O
functions
64 64 64
SP16GGIO IEC 61850 generic communication I/O
functions 16 inputs
16 16 16
MVGGIO IEC 61850 generic communication I/O
functions
16 16 16
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
12 ABB
IEC 61850/
Function block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
MVEXP Measured value expander block 66 66 66
SPVNZBAT Station battery supervision 1 1 1
SSIMG 63 Insulation gas monitoring function 1 1 1
SSIML 71 Insulation liquid monitoring function 1 1 1
SSCBR Circuit breaker condition monitoring 1 1 1
I103MEAS Measurands for IEC60870-5-103 1 1 1
I103MEASUSR Measurands user defined signals for
IEC60870-5-103
3 3 3
I103AR Function status auto-recloser for
IEC60870-5-103
1 1 1
I103EF Function status ground-fault for
IEC60870-5-103
1 1 1
I103FLTPROT Function status fault protection for
IEC60870-5-103
1 1 1
I103IED IED status for IEC60870-5-103 1 1 1
I103SUPERV Supervison status for IEC60870-5-103 1 1 1
I103USRDEF Status for user defined signals for
IEC60870-5-103
20 20 20
Metering
PCGGIO Pulse counter logic 16 16 16
ETPMMTR Function for energy calculation and
demand handling
3 3 3
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 13
Designed to communicate
IEC 61850/
Function block
name
ANSI Function description Breaker
REQ650 (A01A)
3Ph/1CB/1BB
REQ650 (A11A)
1Ph/1CB/1BB
REQ650 (B11A)
1Ph/1CB/2BB
Station communication
IEC 61850 communication protocol,
LAN1
1 1 1
DNP3.0 for TCP/IP communication
protocol, LAN1
1 1 1
IEC61870-5-103 IEC60870-5-103 serial
communication via ST
1 1 1
GOOSEINTLKRCV Horizontal communication via
GOOSE for interlocking
59 59 59
GOOSEBINRCV GOOSE binary receive 4 4 4
GOOSEDPRCV GOOSE function block to receive a
double point value
32 32 32
GOOSEINTRCV GOOSE function block to receive an
integer value
32 32 32
GOOSEMVRCV GOOSE function block to receive a
mesurand value
16 16 16
GOOSESPRCV GOOSE function block to receive a
single point value
64 64 64
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
14 ABB
Basic IED functions
IEC 61850/
Function block
name
Function description
Basic functions included in all products
INTERRSIG Self supervision with internal event list 1
SELFSUPEVLST Self supervision with internal event list 1
SNTP Time synchronization 1
TIMESYNCHGEN Time synchronization 1
DTSBEGIN,
DTSEND,
TIMEZONE
Time synchronization, daylight saving 1
IRIG-B Time synchronization 1
SETGRPS Setting group handling 1
ACTVGRP Parameter setting groups 1
TESTMODE Test mode functionality 1
CHNGLCK Change lock function 1
TERMINALID IED identifiers 1
PRODINF Product information 1
PRIMVAL Primary system values 1
SMAI_20_1-12 Signal matrix for analog inputs 2
3PHSUM Summation block 3 phase 12
GBASVAL Global base values for settings 6
ATHSTAT Authority status 1
ATHCHCK Authority check 1
FTPACCS FTP access with password 1
DOSFRNT Denial of service, frame rate control for front port 1
DOSLAN1 Denial of service, frame rate control for LAN1 1
DOSSCKT Denial of service, socket flow control 1
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 15
4. Current protection
Instantaneous phase overcurrent
protection PHPIOC (50)
The instantaneous three phase overcurrent
function has a low transient overreach and
short tripping time to allow use as a high set
short-circuit protection function.
Instantaneous phase overcurrent
protection SPTPIOC (50)
The instantaneous phase overcurrent function
for single pole tripping has a low transient
overreach and short tripping time to allow use
as a high set short-circuit protection function.
Four step phase overcurrent
protection OC4PTOC (51/67)
The four step phase overcurrent protection
function OC4PTOC (51/67) has independent
inverse time delay settings for step 1 and 4.
Step 2 and 3 are always definite time delayed.
All IEC and ANSI inverse time characteristics
are available.
The directional function is voltage polarized
with memory. The function can be set to be
directional or non-directional independently for
each of the steps.
Four step phase overcurrent
protection OC4SPTOC (51/67)
The four step phase overcurrent function for
single pole tripping (OC4SPTOC, 51_67) has an
inverse or definite time delay independent for
each step separately.
All IEC and ANSI time delayed characteristics
are available.
The directional function is voltage polarized
with memory. The function can be set to be
directional or non-directional independently for
each of the steps.
Instantaneous residual overcurrent
protection EFPIOC (50N)
The Instantaneous residual overcurrent
protection EFPIOC (50N) has a low transient
overreach and short tripping times to allow the
use for instantaneous ground-fault protection,
with the reach limited to less than the typical
eighty percent of the line at minimum source
impedance. EFPIOC (50N) can be configured to
measure the residual current from the three-
phase current inputs or the current from a
separate current input. EFPIOC (50N) can be
blocked by activating the input BLOCK.
Four step residual overcurrent
protection EF4PTOC (51N_67N)
The four step residual overcurrent protection
(EF4PTOC, 51N/67N) has independent inverse
time delay settings for step 1 and 4. Step 2 and
3 are always definite time delayed.
All IEC and ANSI inverse time characteristics
are available.
The directional function includes 3 options
• voltage polarized
• current polarized
• dual polarized
EF4PTOC (51N/67N) can be set directional or
non-directional independently for each of the
steps.
Second harmonic blocking can be set
individually for each step.
Sensitive directional residual
overcurrent and power protection
SDEPSDE (67N)
In isolated networks or in networks with high
impedance grounding, the ground fault current
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
16 ABB
is significantly smaller than the short circuit
currents. In addition to this, the magnitude of
the fault current is almost independent on the
fault location in the network. The protection
can be selected to use either the residual
current or residual power component
3V
0
·3I
0
·cos j, for operating quantity. There is
also available one non-directional 3I
0
step and
one non-directional 3V
0
overvoltage tripping
step.
Thermal overload protection, one
time constant LPTTR (26)
The increasing utilizing of the power system
closer to the thermal limits has generated a
need of a thermal overload protection also for
power lines.
A thermal overload will often not be detected
by other protection functions and the
introduction of the thermal overload protection
can allow the protected circuit to operate closer
to the thermal limits.
The three-phase current measuring protection
has an I
2
t characteristic with settable time
constant and a thermal memory.
An alarm pickup gives early warning to allow
operators to take action well before the line is
tripped.
Breaker failure protection CCRBRF
(50BF)
Breaker failure protection (CCRBRF, 50BF)
ensures fast back-up tripping of surrounding
breakers in case the protected breaker fails to
open. CCRBRF (50BF) can be current based,
contact based, or an adaptive combination of
these two conditions.
Current check with extremely short reset time
is used as check criterion to achieve high
security against unnecessary operation.
Contact check criteria can be used where the
fault current through the breaker is small.
Breaker failure protection (CCRBRF, 50BF)
current criteria can be fulfilled by one or two
phase currents, or one phase current plus
residual current. When those currents exceed
the user defined settings, the function is
activated. These conditions increase the
security of the back-up trip command.
CCRBRF (50BF) function can be programmed
to give a three-phase re-trip of the protected
breaker to avoid unnecessary tripping of
surrounding breakers.
Breaker failure protection CSPRBRF
(50BF)
Breaker failure protection for single pole
tripping applications CSPRBRF (50BF) ensures
fast back-up tripping of surrounding breakers
in case the protected breaker fails to open.
CSPRBRF (50BF) can be current based, contact
based, or adaptive combination between these
two principles.
A current check with extremely short reset time
is used as a check criterion to achieve a high
security against unnecessary operation.
A contact check criteria can be used where the
fault current through the breaker is small.
CSPRBRF (50BF) function current criteria can
be fulfilled by one or two phase currents, or
one phase current plus residual current. When
those currents exceed the user defined settings,
the function is activated. These conditions
increase the security of the back-up trip
command.
CSPRBRF (50BF) can be programmed to give a
three-phase re-trip of the protected breaker to
avoid unnecessary tripping of surrounding
breakers at an incorrect initiation due to
mistakes during testing.
Stub protection STBPTOC (50STB)
When a power line is taken out of service for
maintenance and the line disconnector is
opened, line side voltage transformers will be
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 17
on the disconnected part of the line. The
primary line distance protection will thus not
be able to operate and must be blocked.
The stub protection STBPTOC (50STB) covers
the zone between the current transformers and
the open disconnector. The three-phase
instantaneous overcurrent function is released
from a normally open, 89b auxiliary contact on
the line disconnector.
Pole discordance protection CCRPLD
(52PD)
Circuit breakers and disconnectors can end up
with their phase poles in different positions
(close-open), due to electrical or mechanical
failures.An open phase can cause negative and
zero sequence currents which cause thermal
stress on rotating machines and can cause
unwanted operation of zero sequence or
negative sequence current functions.
Normally the affected breaker is tripped to
correct such a situation. If the situation
warrants the surrounding breakers should be
tripped to clear the unsymmetrical load
situation.
The pole discrepancy function operates based
on information from the circuit breaker logic
with additional criteria from unsymmetrical
phase currents when required.
Broken conductor check BRCPTOC
(46)
Conventional protection functions can not
detect the broken conductor condition. Broken
conductor check (BRCPTOC, 46) function,
consisting of continuous current unsymmetrical
check on the line where the IED is connected
will give alarm or trip at detecting broken
conductors.
Directional over/underpower
protection GOPPDOP/GUPPDUP
(32/37)
The directional over-/under-power protection
GOPPDOP (32)/GUPPDUP (37) can be used
wherever a high/low active, reactive or
apparent power protection or alarming is
required. The functions can alternatively be
used to check the direction of active or reactive
power flow in the power system. There are a
number of applications where such
functionality is needed. Some of them are:
• detection of reversed active power flow
• detection of high reactive power flow
Each function has two steps with definite time
delay. Reset times for both steps can be set as
well.
Negative sequence based overcurrent
function DNSPTOC (46)
Negative sequence based overcurrent function
(DNSPTOC, 46) may be used in power line
applications where the reverse zero sequence
source is weak or open, the forward source
impedance is strong and it is desired to detect
forward ground faults.
Additionally, it is applied in applications on
underground cables, where zero sequence
impedance depends on the fault current return
paths, but the cable negative sequence
impedance is practically constant.
The directional function is current and voltage
polarized. The function can be set to forward,
reverse or non-directional independently for
each step.
DNSPTOC (46) protects against all unbalanced
faults including phase-to-phase faults. The
minimum pickup current of the function must
be set to above the normal system unbalance
level in order to avoid unintentional tripping.
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
18 ABB
5. Voltage protection
Two step undervoltage protection
UV2PTUV (27)
Undervoltages can occur in the power system
during faults or abnormal conditions. Two step
undervoltage protection (UV2PTUV, 27)
function can be used to open circuit breakers
to prepare for system restoration at power
outages or as long-time delayed back-up to
primary protection.
UV2PTUV (27) has two voltage steps, where
step 1 is settable as inverse or definite time
delayed. Step 2 is always definite time delayed.
Two step overvoltage protection
OV2PTOV (59)
Overvoltages may occur in the power system
during abnormal conditions such as sudden
power loss, tap changer regulating failures,
open line ends on long lines etc.
OV2PTOV (59) has two voltage steps, where
step 1 can be set as inverse or definite time
delayed. Step 2 is always definite time delayed.
OV2PTOV (59) has an extremely high reset
ratio to allow settings close to system service
voltage.
Two step residual overvoltage
protection ROV2PTOV (59N)
Residual voltages may occur in the power
system during ground faults.
Two step residual overvoltage protection
ROV2PTOV (59N) function calculates the
residual voltage from the three-phase voltage
input transformers or measures it from a single
voltage input transformer fed from a broken
delta or neutral point voltage transformer.
ROV2PTOV (59N) has two voltage steps, where
step 1 can be set as inverse or definite time
delayed. Step 2 is always definite time delayed.
Loss of voltage check LOVPTUV (27)
Loss of voltage check (LOVPTUV, 27) is
suitable for use in networks with an automatic
system restoration function. LOVPTUV (27)
issues a three-pole trip command to the circuit
breaker, if all three phase voltages fall below
the set value for a time longer than the set time
and the circuit breaker remains closed.
6. Frequency protection
Underfrequency protection SAPTUF
(81)
Underfrequency occurs as a result of lack of
generation in the network.
Underfrequency protection SAPTUF (81) is
used for load shedding systems, remedial
action schemes, gas turbine startup and so on.
SAPTUF (81) is provided with an undervoltage
blocking.
Overfrequency protection SAPTOF
(81)
Overfrequency protection function SAPTOF
(81) is applicable in all situations, where
reliable detection of high fundamental power
system frequency is needed.
Overfrequency occurs at sudden load drops or
shunt faults in the power network. Close to the
generating plant, generator governor problems
can also cause over frequency.
SAPTOF (81) is used mainly for generation
shedding and remedial action schemes. It is
also used as a frequency stage initiating load
restoring.
SAPTOF (81) is provided with an undervoltage
blocking.
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
ABB 19
Rate-of-change frequency protection
SAPFRC (81)
Rate-of-change frequency protection function
(SAPFRC,81) gives an early indication of a main
disturbance in the system. SAPFRC (81) can be
used for generation shedding, load shedding
and remedial action schemes. SAPFRC (81) can
discriminate between positive or negative
change of frequency.
SAPFRC (81) is provided with an undervoltage
blocking.
7. Secondary system
supervision
Current circuit supervision CCSRDIF
(87)
Open or short circuited current transformer
cores can cause unwanted operation of many
protection functions such as differential,
ground-fault current and negative-sequence
current functions.
It must be remembered that a blocking of
protection functions at an occurrence of open
CT circuit will mean that the situation will
remain and extremely high voltages will stress
the secondary circuit.
Current circuit supervision (CCSRDIF, 87)
compares the residual current from a three
phase set of current transformer cores with the
neutral point current on a separate input taken
from another set of cores on the current
transformer.
A detection of a difference indicates a fault in
the circuit and is used as alarm or to block
protection functions expected to give unwanted
tripping.
Fuse failure supervision SDDRFUF
The aim of the fuse failure supervision function
(SDDRFUF) is to block voltage measuring
functions at failures in the secondary circuits
between the voltage transformer and the IED in
order to avoid unwanted operations that
otherwise might occur.
The fuse failure supervision function basically
has three different algorithms, negative
sequence and zero sequence based algorithms
and an additional delta voltage and delta
current algorithm.
The negative sequence detection algorithm is
recommended for IEDs used in isolated or high-
impedance grounded networks. It is based on
the negative-sequence measuring quantities, a
high value of voltage without the presence of
the negative-sequence current 3I
2
.
The zero sequence detection algorithm is
recommended for IEDs used in directly or low
impedance grounded networks. It is based on
the zero sequence measuring quantities, a high
value of voltage 3V
0
without the presence of
the residual current 3I
0
.
A criterion based on delta current and delta
voltage measurements can be added to the fuse
failure supervision function in order to detect a
three phase fuse failure, which in practice is
more associated with voltage transformer
switching during station operations.
For better adaptation to system requirements,
an operation mode setting has been introduced
which makes it possible to select the operating
conditions for negative sequence and zero
sequence based function. The selection of
different operation modes makes it possible to
choose different interaction possibilities
between the negative sequence and zero
sequence based algorithm.
Breaker protection REQ650 ANSI 1MRK 505 269-BUS -
Product version: 1.1 Issued: April 2011
20 ABB
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ABB REL650 series User manual

Category
Measuring, testing & control
Type
User manual
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