Post on 03-Jun-2018
8/12/2019 18 REB 670 IED
1/41
ABBP
owerTechnologiesAB
2006-04-20 Gunnar Stranne A
Rio de JaneiroApril 23-25, 2006
Busbar protectionREB 670
Gunnar Stranne
8/12/2019 18 REB 670 IED
2/41
2
ABBP
owerTechnologiesAB
2006-04-20 Gunnar Stranne A
8/12/2019 18 REB 670 IED
3/41
3
ABBP
owerTechnologiesAB
2006-04-20 Gunnar Stranne A
8/12/2019 18 REB 670 IED
4/41
4
ABBP
owerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 500 is enabled for use with IEC61850 communication
8/12/2019 18 REB 670 IED
5/41
5
ABBP
owerTechnologiesAB
2006-04-20 Gunnar Stranne A
Benefits of REB 670 outstanding features
Very fast, minimum operating time 10 ms
Extremely stable for external faults
Additional sensitive differential protection
Smart open CT detection
One or two protection zones and check zone
Phase segregated
Very low CT requirements
Any CT ratio difference can be accommodated
Settings entered directly in primary amperes
The I/O is flexible and extendable Easy extension
8/12/2019 18 REB 670 IED
6/41
6
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Application Areas for REB 670
Differential protection, BFR& Non-Dir OC Protectionfor:
Busbars Meshed corners,
T-protection
8/12/2019 18 REB 670 IED
7/41
7
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Three-phase versions
REB 670-A20 for 4 bays 2 zones
REB 670-A31 for 8 bays 2 zones
Single phase and summationthree-phase versions
REB 670-B20 for 12 bays 2
zones REB670-B21 for 12 bays 2
zones
REB670-B31 for 24 bays 2
zones
Pre-configured REB 670 Ready To Use
8/12/2019 18 REB 670 IED
8/41
8
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
3-Phase Version
Two measuring zone BFR, OC, EnFP & AR
4 or 8 bays
1-Phase Version
Two measuring zones
BFR, OC, EnFP & AR 12 or 24 bays
One terminal per phase
Summation
REB 670 Preconfigured Versions
8/12/2019 18 REB 670 IED
9/41
9
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Application Areas:
Smaller Buses (up to 8 CTs per zone)
Single Busbar Stations (with Transfer Bus) 1 Breaker Stations
Double Busbar Stations (with Transfer Bus)
Zone Interconnection included in the design
Three-Phase Terminal - 4-8 Bays - Double Zone
No switching of CT secondary circuitsNo switching of CT secondary circuits
REB 670 A31
2 Zones (A & B);8 Bays
8/12/2019 18 REB 670 IED
10/41
10
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Capacitor Reactor
REB 670 3-Phase - Basic applications Diff & CBF
M/G
Generator/MotorAuto-Transformer
8/12/2019 18 REB 670 IED
11/41
11
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 3- Phase - BBP, BFP & EnFP for single buses
Single Bus with bus tie CBup to 3/7 feeder bays on each side
ZA ZB
ZA
Single Busbarup to 4/8 feeder bays
T connections
ZA
ZB
Alternative CT Location
H type station with bus-section CBor sectionalizing disconnector
ZA ZB
8/12/2019 18 REB 670 IED
12/41
12
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 3- Phase - BBP, BFP, EnFP for 1 CB stations
1 Breaker Stationsup to 4 diameters
ZA
ZB
1 Breaker Stationsup to 8 diameters
ZA
ZB
.. .
8/12/2019 18 REB 670 IED
13/41
13
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 3- Phase - BBP, BFP & EnFP for Double CB stations
Alternative CT Location
Double Breaker Station
up to 8 feeders
ZA
ZB
.. .
8/12/2019 18 REB 670 IED
14/41
14
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1- Phase - BBP, BFP & EnFP for double buses
Isolator replica in REB 670*1.0
by configuration
Double Bus with bus-coupler CBand up to 6/7 feeder bays
ZB
ZA
.. .
Optional Measuring Point
Double Busbars with bus coupler CB and Transfer Busup to 6/7 feeder bays
ZB
ZA
Transfer Bus
Transfer Bay
.. ... .
.. .
8/12/2019 18 REB 670 IED
15/41
15
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
EQUIPMENT INCLUDED in the PANEL:
1 pcs 3 phase, Busbar protection terminal REB 670*1.0
- two differential zones
- check zone- eight CB failure relays
- eight OC feeder backup protection (EnFP)
- internal disconnector replica logic
- internal individual bay tripping logic- disconnector status supervision
700
ABB
Scheme Layout for Double Busbar; 2 Zones/7 feeders
8/12/2019 18 REB 670 IED
16/41
16
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Application Areas:
Bigger Buses (up to 12/24 bays per zone)
Single Busbar Stations (with Transfer Bus)
1 Breaker Stations
Double Busbar Stations (with Transfer Bus)
Load Transfer is included into the design
3 Terminals required for complete scheme
LDCM available to share binary IO
Single-Phase Terminal REB670 B21/B31; 12/24 Bays- Double Zone
No switching of CT secondary circuitsNo switching of CT secondary circuits
REB 670; Ph-L32 Zones (A & B);24 Bays
REB 670; Ph-L22 Zones (A & B);24 Bays
REB 670; Ph-L12 Zones (A & B);
24 Bays
8/12/2019 18 REB 670 IED
17/41
17
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1- Ph; BBP, BFP & EnFP for single buses
Single Busup to 12/24 feeder bays
ZA
.. .
Single Bus with bus-section disconnectorup to 12/24 feeder bays (i.e. 12+12; 16+8 etc.)
ZA ZB
.. . .. .
Single Bus with bus-section CBup to 11/23 feeder bays on each side
ZA ZB
.. . .. .
Single Bus with bus-section CB, up to11/23 feeder bays (i.e. 12+11; 10+13 etc.)
ZA ZB
.. ... .
8/12/2019 18 REB 670 IED
18/41
18
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1- Phase - BBP applications for 1 CB stations
1 Breaker Stationsup to 12 / 24 diameters
ZA
ZB
.. .
1 Breaker Stationsup to 6 / 12 diameters
ZA
ZB
.. .
8/12/2019 18 REB 670 IED
19/41
19
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1- Phase - BBP, CBF & EnFP for 1 CB Stations!
Bus Diff, CB Fail & EnFP1 Breaker Stationsup to 4/8 diameters
ZA
ZB
.. .
8/12/2019 18 REB 670 IED
20/41
20
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Alternative CT Location
REB 670 1- Ph; BBP, BFP & EnFP for Double CB stations
Double Breaker Station
up to 6 / 12 feeders
ZA
ZB
.. .
ZA
ZB
Double Breaker Station
up to 12 / 24 feeders
.. .
8/12/2019 18 REB 670 IED
21/41
21
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A Optional Measuring Point
REB 670 1- Ph; BBP, BFP & EnFP for double buses
Double Bus with bus-coupler CBup to 22/23 feeder bays
ZB
ZA
.. .
Isolator replica in REB 670*1.0by CAP 531 Configuration
8/12/2019 18 REB 670 IED
22/41
22
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1- Ph; BBP, BFP & EnFP for double bus & transfer
Double Busbars with Transfer Bus
up to 22/23 feeder bays
ZB
ZA
Transfer Bus
Transfer Bay
.. .
.. .
.. .
Bus-Coupler Bay
ZB
ZA
Transfer Bus
Combined Bus-Coupler
& Transfer Bay
.. .
.. .
.. .
Isolator replica in REB 670*1.0by CAP 531 Configuration
8/12/2019 18 REB 670 IED
23/41
23
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
EQUIPMENT INCLUDED in the PANEL:
3 pcs 1 phase, Busbar protection terminal REB 670*1.0
- two differential zones
- check zone- 24 CB failure relays
- 24 OC feeder backup protection (EnFP)
- internal disconnector replica logic
- internal individual bay tripping logic- disconnector status supervision
700
ABB
Scheme Layout for Double Busbar; 2 Zones/22 feeders
8/12/2019 18 REB 670 IED
24/41
24
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 1-Phase version - for double buses
Four Zone Double Bus with two BC-CBs one BS-CB and one sectionalizingdisconnector with up to 18-20 feeder bays in the whole station
Optional Measuring Point
Four Zone Double Bus with two bus-coupler CBs and twobus-section CBs and up to 20/21 feeder bays on each station side.
BBP, BFP & EnFP included
Reserve 2
Main 2
Reserve 1
Main 1
.. ... .
Reserve 2
Main 2
Reserve 1
Main 1
.. ... .
8/12/2019 18 REB 670 IED
25/41
25
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Buses up to 24 bays per zone
Single Busbar
1 Breaker Systems Double Busbar
Same applications possible as for 1Ph solution
Software Driven Zone Selection
Cost effective Solution
REB 670; 1 Ph
2 Zones (A & B);
24 Bays
+ N+ N timestimes
NN 88
REB 670 1-phase version summation transformers
8/12/2019 18 REB 670 IED
26/41
26
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 Allocation of Software Functionality
Zone Selection
Dynamic Software CT switching(i.e. no switching in CT secondarycircuits neither interposing CTs
are required) Easy adaptation to different
substation layouts such as: singleor double bus (with transfer bus),one-and-half or double breaker,etc.
Simple adaptation to buses withonly one set of CTs in the bus-section or bus-coupler bays
Selective BBP & BFP tripping forevery bay
Merging of the two differentialzones when required (i.e. duringload transfer in double busbarstations)
Disconnector and/or circuit
breaker status supervision
Differential Zones
High speed tripping for internalfaults. Typical operating time 12ms
Complete stability for throughfaults, with heavy CT saturation,and a maximum remanence in theCT core at auto-reclosing
Low CT requirement, only 2milliseconds to saturation neededfor correct operation
Intelligent detection for open or
shorted CT secondary circuits and
settable blocking of differentialprotection zone
Sensitive differential protection
stage for power systems withlimited earth-fault current
8/12/2019 18 REB 670 IED
27/41
27
ABB
PowerTechnologiesAB
2006-04-20 Gunnar Stranne A
REB 670 Software Structure / Function Blocks
Zone Selection
Primary Switchgear Objects
Status (i.e. disconnector and
breakers) Bay
(Interface towards onePrimary Bay)
Zone Interconnection(Merging of two zones whenrequired)
Differential Zones
Zone A
(Id>, OCT, Sensitive Id>)
Zone B(Id>, OCT, Sensitive Id>)
Check Zone (Id>)
One BasicFunction in AFL,
Hiddenconnections exist
8/12/2019 18 REB 670 IED
28/41
28
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Very fast, minimum operating time 10 ms
Extremely stable for external faults
Completely phase segregated measurement
Differential algorithm not dependent on the number of connected feeders
Very low CT requirements, only 2 ms before CT saturation
Any CT ratio difference can be accommodated
Settings entered directly in primary amperes
Differential Protection in REB 670
Differential protectionoperation characteristic
Operateregion
Diff Oper Level
Id[P
rimaryAmps]
Iin
[Primary Amps]
s=0.53
I d=I i
n
Sensitive Oper Level
8/12/2019 18 REB 670 IED
29/41
29
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Used in low impedance earthed power system or in otherspecial applications
It has the following characteristics:
Freely settable characteristic with time delay possibility
Automatically blocked for heavy ph-to-ph faults
External release via binary signal (i.e. from open delta
voltage, transformer neutral point current, etc.)
Sensitive Differential Protection in REB 670
Differential protectionoperation characteristic
Operateregion
Diff Oper Level
Id[P
rimaryAmps]
Iin
[Primary Amps]
s=0.53
I d=I i
n
Sensitivedifferentialprotection
en04000260.vsd
Sensitive Oper Level
8/12/2019 18 REB 670 IED
30/41
30
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Differential protectionoperation characteristic
Operateregion
Diff Oper Level
Id[PrimaryAmps]
Iin
[Primary Amps]
s=0.53
I d=I i
n
Sensitivedifferentialprotection
en04000260.vsd
Sensitive Oper Level
Slow and Fast Open CT detection
Settable influence of slow and fast open CT logic:
Off (switched off)
Block (differential protection)
Supervise (Doesn't block, just increase minimumdifferential operation level as shown below)
Open CT detection for REB 670
OCT Logic Supervision Level
8/12/2019 18 REB 670 IED
31/41
31
ABBPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Independent check zone available
Can be switched off (default setting)
Freely settable which CTs shall be connected to check zone Provide stability in case of problem with disconnector
auxiliary contacts ( stuck contacts or wiring problems)
Check Zone in REB 670
Oper Level
s=0.0-0.90 (settable)
Iout[Primary Amps]
Id[PrimaryAmps
]
Operateregion
8/12/2019 18 REB 670 IED
32/41
32
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Two new types of Diff Zone supervision are available
Id> traditional supervision of differential current levelwith settable time delay(i.e. can be used as alarm or for
automatic reset of OCT condition)
Iin> incoming current supervision, without time delay
(i.e. can be used to trigger DR for external faults)
Zone Supervision in REB 670
8/12/2019 18 REB 670 IED
33/41
33
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Disconnector/CB supervision & alarming
For every disconnector/CB status is determined from the
status of aux contacts (i.e. a & b contacts)
Two schemes available depending on philosophy, a or b or both
Position of a disconnector/CB can be forced to OPEN or
CLOSED by a parameter setting
8/12/2019 18 REB 670 IED
34/41
34
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Easy to set, configure, install & use
Pre-configured for most typical substation layouts
Bay connection matrix built-in (large HMI)
Switchgear Status Matrix (large HMI)
User Features in REB 670 (3-Ph & 1-Ph)
8/12/2019 18 REB 670 IED
35/41
35
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Bay-Connections & Switchgear Status Matrices
UserSettableBay Name
InternallyUsed BayFB
Connectionsto internalzones
User SettableSwitchgear
Names
SwitchgearObject
Status
8/12/2019 18 REB 670 IED
36/41
36
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Breaker Failure Protection
Complete breaker failure protection with:
1ph and/or 3ph starting
Re-trip after a set time delay
Backup trip / bus-strip (i.e. second time delay)
Short reset time of 15ms
Trips CBs via busbar disconnector replica
Integrated station wide trip logic available from Zone Selection
8/12/2019 18 REB 670 IED
37/41
E d F lt P t ti
8/12/2019 18 REB 670 IED
38/41
38
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
End Fault Protection
Feeder
Protection
Busbar
Protection
FeederProtection
BusbarProtection
CT=Measuring Boundary
CB=Clearing Boundary
When feeder CB isopen, stopmeasuring
boundary at theopen CB contactsin order to avoid
over-trip and
activate fast OC
protection to tripremote end only
When feeder CB is
open, extendmeasuringboundary to theopen CB contactsin order to avoid
under-trip
Over-TripZone
Under-TripZone
8/12/2019 18 REB 670 IED
39/41
S REB 670 b b t ti
8/12/2019 18 REB 670 IED
40/41
40
AB
BPowerTechnologiesAB
2006-04-20 Gunnar Stranne A
Summary - REB 670 busbar protection
Complete and fast differential protection (10-12ms)
One or two protection zones and check zone
Extremely stable for external faults
Additional sensitivity
Low CT requirements - open CT detection any CT ratio
Advanced zone selection & integrated zone interconnection
Disconnector and/or CB position supervision & alarming
CB failure and 4-stage backup overcurrent protection
Disturbance and event recording Preconfigured versions with flexible and extendable I/O
Easy extension
8/12/2019 18 REB 670 IED
41/41