Overview
The main purpose of the “Phase segregated scheme communication logic for distance protection (ZC1PPSCH)” function is to supplement the distance protection function such that fast clearance of faults is also achieved at the line end for which the faults are on the part of the line not covered by its underreaching zone, and correct phase selection can be maintained to support single-pole tripping for faults occurring anywhere on the entire length of a double circuit line.
For more detailed information on “Phase segregated scheme communication logic for distance protection (ZC1PPSCH)” 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 |
| Phase segregated Scheme communication logic for distance protection | ZC1PPSCH | – | 85 |
Signals & Setting Parameters
ZC1PPSCH function block
ZC1PPSCH Input signals
| ZC1PPSCH Input signals | |||
| Name | Type | Default | Description |
| BLOCK | BOOLEAN | 0 | Block of function |
| BLKTR | BOOLEAN | 0 | Common signal for block of trip output from communication logic in all phases |
| BLKTRL1 | BOOLEAN | 0 | Signal for block of trip output from communication logic in Phase L1 |
| BLKTRL2 | BOOLEAN | 0 | Signal for block of trip output from communication logic in Phase L2 |
| BLKTRL3 | BOOLEAN | 0 | Signal for block of trip output from communication logic in Phase L3 |
| CACCL1 | BOOLEAN | 0 | Accelerated Distance protection zone start in Phase L1 |
| CACCL2 | BOOLEAN | 0 | Accelerated Distance protection zone signal in Phase L2 |
| CACCL3 | BOOLEAN | 0 | Accelerated Distance protection zone signal in Phase L3 |
| CSURL1 | BOOLEAN | 0 | Underreaching distance protection zone signal in Phase L1 |
| CSURL2 | BOOLEAN | 0 | Underreaching distance protection zone signal in Phase L2 |
| CSURL3 | BOOLEAN | 0 | Underreaching distance protection zone signal in Phase L3 |
| CSORL1 | BOOLEAN | 0 | Overreaching distance protection zone signal in Phase L1 |
| CSORL2 | BOOLEAN | 0 | Overreaching distance protection zone signal in Phase L2 |
| CSORL3 | BOOLEAN | 0 | Overreaching distance protection zone signal in Phase L3 |
| CSBLKL1 | BOOLEAN | 0 | Reverse directed distance protection zone signal in Phase L1 |
| CSBLKL2 | BOOLEAN | 0 | Reverse directed distance protection zone signal in Phase L2 |
| CSBLKL3 | BOOLEAN | 0 | Reverse directed distance protection zone signal in Phase L3 |
| BLKCSL1 | BOOLEAN | 0 | Block of carrier send in POR and Blocking schemes in Phase L1 |
| BLKCSL2 | BOOLEAN | 0 | Block of carrier send in POR and Blocking schemes in Phase L2 |
| BLKCSL3 | BOOLEAN | 0 | Block of carrier send in POR and Blocking schemes in Phase L3 |
| CRL1 | BOOLEAN | 0 | Carrier signal received in Phase L1 |
| CRL2 | BOOLEAN | 0 | Carrier signal received in Phase L2 |
| CRL3 | BOOLEAN | 0 | Carrier signal received in Phase L3 |
| CRMPH | BOOLEAN | 0 | Carrier Signal received for multiphase fault |
ZC1PPSCH Output signals
| ZC1PPSCH Output signals | |||
| Name | Type | Description | |
| TRIP | BOOLEAN | Common trip output in any of the phase | |
| TRL1 | BOOLEAN | Trip output in Phase L1 | |
| TRL2 | BOOLEAN | Trip output in Phase L2 | |
| TRL3 | BOOLEAN | Trip output in Phase L3 | |
| CSL1 | BOOLEAN | Carrier Send in phase L1 | |
| CSL2 | BOOLEAN | Carrier Send in phase L2 | |
| CSL3 | BOOLEAN | Carrier Send in phase L3 | |
| CSMPH | BOOLEAN | carrier Send for multi phase fault | |
| CRLL1 | BOOLEAN | Carrier signal received in Phase L1 | |
| CRLL2 | BOOLEAN | Carrier signal received in Phase L2 | |
| CRLL3 | BOOLEAN | Carrier signal received in Phase L3 | |
ZC1PPSCH Group settings (basic)
| ZC1PPSCH Group settings (basic) | |||||
| Name | Values (Range) | Unit | Step | Default | Description |
| Operation | Off On |
– | – | Off | Operation On / Off |
| Scheme Type | Off Intertrip Permissive UR Permissive OR Blocking |
– | – | Permissive UR | Scheme type |
| tCoord | 0.000 – 60.000 | s | 0.001 | 0.000 | Trip coordinate time |
| tSendMin | 0.000 – 60.000 | s | 0.001 | 0.100 | Minimum duration of Carrier Send signal |
Logics & highlights
Basic logic for trip carrier in one phase of a blocking scheme
Basic logic for trip carrier in one phase of a permissive underreach scheme
Simplified logic diagram for one phase
