Overview
The “Autorecloser (SMBRREC)” function provides: high-speed and/or delayed auto reclosing, single and/or three phase auto reclosing, support for single or multi-breaker applications.
For more detailed information on “Autorecloser (SMBRREC)” function, refer to ABB, Relion 670 Series manuals.
To see other supported functions, click here.
Function Identification
| Function description | IEC 61850 identification |
IEC 60617 identification |
ANSI/IEEE C37.2 device number |
| Autorecloser for 1 phase, 2 phase and/or 3 phase | SMBRREC | 5(0 -->1) | 79 |
Signals & Setting Parameters
SMBRREC function block
SMBRREC Input signals
| SMBRREC Input signals | |||
| Name | Type | Default | Description |
| ON | BOOLEAN | 0 | Switch AR On (at ExternalCtrl = On) |
| OFF | BOOLEAN | 0 | Switch AR Off (at ExternalCtrl = On) |
| BLKON | BOOLEAN | 0 | Set AR in blocked state |
| BLKOFF | BOOLEAN | 0 | Release AR from blocked state |
| RESET | BOOLEAN | 0 | Reset AR to initial conditions |
| INHIBIT | BOOLEAN | 0 | Interrupt and inhibit reclosing sequence |
| START | BOOLEAN | 0 | Start reclosing sequence |
| STARTHS | BOOLEAN | 0 | Start high-speed reclosing without synchrocheck |
| TRSOTF | BOOLEAN | 0 | Continue to shots 2-5 at a trip from switch-on-to-fault |
| SKIPHS | BOOLEAN | 0 | Skip high speed shot and continue with delayed shots |
| ZONESTEP | BOOLEAN | 0 | Coordinate local AR with down stream devices |
| TR2P | BOOLEAN | 0 | Two phase trip occurred |
| TR3P | BOOLEAN | 0 | Three phase trip occurred |
| THOLHOLD | BOOLEAN | 0 | Hold AR in wait state |
| CBREADY | BOOLEAN | 0 | Circuit breaker is ready |
| CBCLOSED | BOOLEAN | 0 | Circuit breaker status |
| PLCLOST | BOOLEAN | 0 | Power line carrier or other form of permissive signal is lost |
| SYNC | BOOLEAN | 0 | Synchrocheck conditions are fulfilled |
| WAIT | BOOLEAN | 0 | Wait for master |
| RSTCOUNT | BOOLEAN | 0 | Reset counters |
| MODEINT | INTEGER | 0 | Integer input used to set reclosing mode (alternative to setting) |
SMBRREC Output signals
| SMBRREC Output signals | |||
| Name | Type | Description | |
| BLOCKED | BOOLEAN | AR is blocked | |
| SETON | BOOLEAN | AR is operative | |
| READY | BOOLEAN | AR is ready for a new sequence | |
| ACTIVE | BOOLEAN | Reclosing sequence in progress | |
| SUCCL | BOOLEAN | Reclosing is successful | |
| UNSUCCL | BOOLEAN | Reclosing is unsuccessful | |
| INPROGR | BOOLEAN | Reclosing in progress, inactive during reclaim time | |
| 1PT1 | BOOLEAN | Single-phase reclosing is in progress for shot 1 | |
| 2PT1 | BOOLEAN | Two-phase reclosing is in progress for shot 1 | |
| 3PT1 | BOOLEAN | Three-phase reclosing is in progress for shot 1 | |
| 3PT2 | BOOLEAN | Three-phase reclosing is in progress for shot 2 | |
| 3PT3 | BOOLEAN | Three-phase reclosing is in progress for shot 3 | |
| 3PT4 | BOOLEAN | Three-phase reclosing is in progress for shot 4 | |
| 3PT5 | BOOLEAN | Three-phase reclosing is in progress for shot 5 | |
| PERMIT1P | BOOLEAN | Single-phase trip is permitted | |
| PREP3P | BOOLEAN | Three-phase trip is prepared | |
| CLOSECB | BOOLEAN | Close command for circuit breaker | |
| WFMASTER | BOOLEAN | Wait signal to slave issued by master for sequential reclosing | |
| COUNT1P | INTEGER | Number of single-phase reclosing shots | |
| COUNT2P | INTEGER | Number of two-phase reclosing shots | |
| COUNT3P1 | INTEGER | Number of three-phase shot 1 reclosings | |
| COUNT3P2 | INTEGER | Number of three-phase shot 2 reclosings | |
| COUNT3P3 | INTEGER | Number of three-phase shot 3 reclosings | |
| COUNT3P4 | INTEGER | Number of three-phase shot 4 reclosings | |
| COUNT3P5 | INTEGER | Number of three-phase shot 5 reclosings | |
| COUNTAR | INTEGER | Number of total reclosing shots | |
| MODE | INTEGER | Integer output for reclosing mode | |
| ABORTED | BOOLEAN | General abort | |
| SYNCFAIL | BOOLEAN | AR sequence is aborted by synchrocheck conditions not fulfilled | |
| INHIBOUT | BOOLEAN | AR sequence is aborted via INHIBIT input | |
SMBRREC Group settings (basic)
| SMBRREC Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation Off / On |
| ExternalCtrl | Off On |
– | – | Off | To be set On if AR is to be used with external control |
| ARMode | 3 phase 1/2/3ph 1/2ph 1ph+1*2ph 1/2ph+1*3ph 1ph+1*2/3ph |
– | – | 1/2/3ph | AR mode selection |
| t1 1Ph | 0.000 – 120.000 | s | 0.001 | 1.000 | Dead time for shot 1, single-phase reclosing |
| t1 3Ph | 0.000 – 120.000 | s | 0.001 | 6.000 | Dead time for shot 1, delayed three- phase reclosing with synchrocheck conditions |
| t1 3PhHS | 0.000 – 120.000 | s | 0.001 | 0.400 | Dead time for shot 1, high speed three-phase reclosing |
| tReclaim | 0.00 – 6000.00 | s | 0.01 | 60.00 | Reclaim time |
| tSync | 0.00 – 6000.00 | s | 0.01 | 30.00 | Maximum wait time for fulfilled synchrocheck conditions |
| tLongStartInh | 0.000 – 60.000 | s | 0.001 | 0.200 | Maximum allowed start pulse duration |
| tPulse | 0.000 – 60.000 | s | 0.001 | 0.200 | Circuit breaker closing pulse duration |
| tCBClosedMin | 0.00 – 6000.00 | s | 0.01 | 5.00 | Minimum time that circuit breaker must be closed before new sequence is allowed |
| tUnsucCl | 0.00 – 6000.00 | s | 0.01 | 30.00 | Maximun wait time for circuit breaker closing before indicating unsuccessful |
| Priority | None Low High |
– | – | None | Priority selection between adjacent terminals |
| tWaitForMaster | 0.00 – 6000.00 | s | 0.01 | 60.00 | Maximum wait time for release from master |
| LongStartInhib | Off On |
– | – | On | To be set ON if AR is to be used with maximum allowed start pulse duration check |
SMBRREC Group settings (advanced)
| SMBRREC Group settings (advanced) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| NoOfShots | 1 2 3 4 5 |
– | – | 1 | Max number of reclosing shots |
| StartByCBOpen | Off On |
– | – | Off | To be set ON if AR is to be started by circuit breaker open position |
| CBReadyType | CO OCO |
– | – | CO | Circuit breaker ready signal type |
| t1 2Ph | 0.000 – 120.000 | s | 0.001 | 1.000 | Dead time for shot 1, two-phase reclosing |
| t2 3Ph | 0.00 – 6000.00 | s | 0.01 | 30.00 | Dead time for shot 2, three-phase reclosing |
| t3 3Ph | 0.00 – 6000.00 | s | 0.01 | 30.00 | Dead time for shot 3, three-phase reclosing |
| t4 3Ph | 0.00 – 6000.00 | s | 0.01 | 30.00 | Dead time for shot 4, three-phase reclosing |
| t5 3Ph | 0.00 – 6000.00 | s | 0.01 | 30.00 | Dead time for shot 5, three-phase reclosing |
| Extended t1 | Off On |
– | – | Off | Extend dead time at loss of permissive channel |
| tExtended t1 | 0.000 – 60.000 | s | 0.001 | 0.500 | Extend three-phase dead time duration |
| tInhibit | 0.000 – 60.000 | s | 0.001 | 5.000 | Reset time for reclosing inhibit |
| CutPulse | Off On |
– | – | Off | Shorten circuit breaker closing pulse at a new start |
| Follow CB | Off On |
– | – | Off | Advance to next shot if circuit breaker has been closed during dead time |
| AutoContinue | Off On |
– | – | Off | Continue with next reclosing shot if circuit breaker did not close |
| tAutoContWait | 0.000 – 60.000 | s | 0.001 | 2.000 | Wait time after close command before proceeding to next shot |
| UnsucClByCBChk | NoCBCheck CB check |
– | – | NoCBCheck | Unsuccessful closing signal obtained by checking circuit breaker position |
| BlockByUnsucCl | Off On |
– | – | Off | Block AR at unsuccessful reclosing |
| ZoneSeqCoord | Off On |
– | – | Off | Coordination of down stream devices to local protection unit’s AR |
| tSuccessful | 0.000 – 60.000 | s | 0.001 | 1.000 | Delay time before indicating successful reclosing |
| tSlaveDeadTime | 0.100 – 60.000 | s | 0.001 | 0.400 | Wait time for the slave to close when WAIT input has reset |
Status transition matrix
| To → From ↓ |
inactive | ready | in progress (dead time) | reclaim time | blocked | |
| inactive | activate CBCLOSED and CBREADY | activate BLKON | ||||
| ready | deactivate CBCLOSED or CBREADY or activate INHIBIT or RESET |
activate START or activate STARTHS | activate BLKON | |||
| in progress (dead time) | activate INHIBIT or RESET | when CBCLOSED issued |
activate BLKON | |||
| reclaim time | activate RESET or INHIBIT | activate START and the last shot has not been reached yet | activate BLKON | |||
| blocked | deactivate CBCLOSED or CBREADY and activate BLKOFF | activate BLKOFF and CBCLOSED and CBREADY | ||||
Logics & highlights
Simplified logic for Operation Off/On and starting
Type of reclosing shots at different settings of “ARMode” or integer inputs to “MODEINT”
| MODEINT (Integer) | ARMode | Type of fault | 1st shot | 2nd – 5th shot |
| 1 | 3ph | 1ph | 3ph | 3ph |
| 2ph | 3ph | 3ph | ||
| 3ph | 3ph | 3ph | ||
| 2 | 1/2/3ph | 1ph | 1ph | 3ph |
| 2ph | 2ph | 3ph | ||
| 3ph | 3ph | 3ph | ||
| 3 | 1/2ph | 1ph | 1ph | 3ph |
| 2ph | 2ph | 3ph | ||
| 3ph | – | – | ||
| 4 | 1ph+1x2ph | 1ph | 1ph | 3ph |
| 2ph | 2ph | – | ||
| 3ph | – | – | ||
| 5 | 1/2ph+1x3ph | 1ph | 1ph | 3ph |
| 2ph | 2ph | 3ph | ||
| 3ph | 3ph | – | ||
| 6 | 1ph+1×2/3ph | 1ph | 1ph | 3ph |
| 2ph | 2ph | – | ||
| 3ph | 3ph | – |
Control of extended dead time
Control of long start pulse duration
Automatic proceeding of shots
BLKON, BLKOFF, RESET, INHIBIT and SYNC behavior when the function is in “ready” status
| Output
→ Input ↓ |
READY | ACTIVE | BLOCKED | INHIBOUT | ABORTED | SYNCFAIL |
| None of below inputs activated | True | False | False | False | False | False |
| BLKON pulse | False | False | True | False | False | False |
| BLKOFF pulse | True | False | False | False | False | False |
| RESET pulse | False | False | False | False | False | False |
| INHIBIT pulse | False | False | False | True | False | False |
| SYNC | True | False | False | False | False | False |
BLKON, BLKOFF, RESET, INHIBIT and SYNC behavior when the function is in “in progress” status
| Output
→ Input ↓ |
READY | ACTIVE | BLOCKED | INHIBOUT | ABORTED | SYNCFAIL |
| None of below inputs activated | False | True | False | False | False | False |
| BLKON pulse | False | False | True | False | False | False |
| BLKOFF pulse | True | False | False | False | False | False |
| RESET pulse | False | False | False | False | False | False |
| INHIBIT pulse | False | False | False | True | True | False |
| No SYNC | False | False | False | False | True | True |
Successful/Unsuccessful
Auto reclosing sequence
Auto reclosing status reported by IEC 61850 in priority order
| Data object AutoRecSt value | Description for mapped signals | Mapped output signals / Comments | Description in IEC61850 Ed2 |
| 1 | Ready | READY | Ready |
| 2 | In Progress | INPROGR | In Progress |
| 3 | Successful | SUCCL | Successful |
| 4 | Waiting for trip | ||
| 5 | Trip issued by protection | ||
| 6 | Fault disappeared | ||
| 7 | Wait to complete | CLOSECB | Wait to complete |
| 8 | Circuit breaker closed | ||
| 9 | Cycle unsuccessful | UNSUCCL | |
| 10 | |||
| -1 | Aborted by synchrocheck fail | SYNCFAIL | |
| 11 | Aborted | ABORTED | Aborted |
| -2 | Set On, Not Ready | SETON = 1, READY = 0, ACTIVE = 0, SUCCL = 0, UNSUCC = 0, INPROG = 0 |
|
| -3 | Set Off, Not Ready | SETON = 0 | |
| -99 | Others | Means that auto recloser is in transitional state, that should not be visible in steady state situation |
Thermal protection hold
Master-Slave
Transient single-phase fault, single-phase reclosing
Permanent fault, three-phase trip, two-shot reclosing
Permanent single-phase fault, single-phase trip, single-shot reclosing, ARMode=1/2/3ph
Permanent single-phase fault, single-phase trip, two-shot reclosing, ARMode=1ph + 1*2ph
