ZIV 7IRD-A - Page 79

Chapter 6. Description of Operation of Protection Subsystem
6-39
M7IRDA2003I
7IRD-A/J/M: Distribution Protection & Control Terminal
© ZIV APLICACIONES Y TECNOLOGÍA, S.L.U. 2020
In Table 6-3 the available Logic Output Signals are described:
Table 6-3: Auxiliary Outputs
Num Name Description Function
1 SUT_A Phase A Time Overcurrent Trip Output
Overcurrent Element Trip.
2 SUT_B Phase B Time Overcurrent Trip Output
3 SUT_C Phase C Time Overcurrent Trip Output
4 SUT_N Ground Time Overcurrent Trip Output
5 SUI_A
Phase A Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
Output
6 SUI_B
Phase B Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
Output
7 SUI_C
Phase C Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
Output
8 SUI_N
Ground Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Trip
Output
9 AUT_A Phase A Time Overcurrent Pickup
Overcurrent Elements Trips. No
affected by their respective trip
mask.
10 AUT_B Phase B Time Overcurrent Pickup
11 AUT_C Phase C Time Overcurrent Pickup
12 AUT_N Ground Time Overcurrent Pickup
13 AUI_A
Phase A Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Pickup
14 AUI_B
Phase B Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Pickup
15 AUI_C
Phase C Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Pickup
16 AUI_N
Ground Instantaneous (7IRD-A/M) /
Instantaneous 1 (7IRD-J) Overcurrent Pickup
17 ATDD_A Phase A Time Overcurrent Interlocked Pickup
Overcurrent Elements Trips.
Affected by their respective trip
mask.
18 ATDD_B Phase B Time Overcurrent Interlocked Pickup
19 ATDD_C Phase C Time Overcurrent Interlocked Pickup
20 ATDD_N Ground Time Overcurrent Interlocked Pickup
21 AIDD_A
Phase A Inst. (7IRD-A/M) / Inst. 1 (7IRD-J)
Overcurrent Interlocked Pickup
22 AIDD_B
Phase B Inst. (7IRD-A/M) / Inst. 1 (7IRD-J)
Overcurrent Interlocked Pickup
23 AIDD_C
Phase C Inst. (7IRD-A/M) / Inst. 1 (7IRD-J)
Overcurrent Interlocked Pickup
24 AIDD_N
Ground Inst. (7IRD-A/M) / Inst. 1 (7IRD-J)
Overcurrent Interlocked Pickup
25 SUI_A2 Phase A Inst. 2 Overcurrent Trip Output (7IRD-J)
Current in the Tripping
Direction.
26 SUI_B2 Phase B Inst. 2 Overcurrent Trip Output (7IRD-J)
27 SUI_C2 Phase C Inst. 2 Overcurrent Trip Output (7IRD-J)
28 SUI_N2 Ground Inst. 2 Overcurrent Trip Output (7IRD-J)
29 AUI_A2 Phase A Inst. 2 Overcurrent Pickup (7IRD-J)
Overcurrent Elements Trips. No
affected by their respective trip
mask.
30 AUI_B2 Phase B Inst. 2 Overcurrent Pickup (7IRD-J)
31 AUI_C2 Phase C Inst. 2 Overcurrent Pickup (7IRD-J)
32 AUI_N2 Ground Inst. 2 Overcurrent Pickup (7IRD-J)