ABB SPAC 531 C User Manual And Technical Description page 15

Numbering of terminals:
Terminal Contact Function
group gap
X0 1-2 Current I
1-3 Current I
4-5 Current I
4-6 Current I
7-8 Current I
7-9 Current I
13-14 Voltage U
13-15 Voltage U
16-17 Voltage U
16-18 Voltage U
19-20 Voltage U
19-21 Voltage U
25-26 Neutral current I
25-27 Neutral current I
28-29 Residual voltage U
28-30 Residual voltage U
X1 1-2 Auxiliary power supply. The positive pole of the DC supply is connected
to terminal 1
3-4 Tripping output (TRIP) of relay modules (I>, I>>, Iϕ>, Iϕ>>)
6-7 Signal "Final trip on overcurrent; I>, I>>" or tripping output 2
(SIGNAL 1)
8-9-10 Self-supervision signalling contact (IRF). Operates on the closed circuit
principle. In normal condition the contact interval 8-9 is closed. When
the auxiliary power supply fails or an internal fault is detected, the contact
interval 9-10 is closed
11-12 Selection of operating characteristic Isinϕ/Icosϕ for the directional
earth-fault module U2 (BACTRL)
X2 1-2-3 Signal "Final trip on earth-fault; Iϕ>, Iϕ>>" output or "general protection
trip; I>, I>>, Iϕ>, Iϕ>>"-signal output (SIGNAL 2)
4-5-6 Starting signal (I>, I>>) from overcurrent relay module (SIGNAL 3)
7-8-9 Starting signal (Iϕ> ) from earth-fault relay module (SIGNAL 4)
10-11 External blocking signal 2 for protection relay modules (BS2)
11-12 External blocking signal 1 for protection relay modules (BS1)
X3 1-2 Input channel 1 of control module, open status (INPUT1/O). When
e.g. the circuit-breaker is open, voltage must be applied to this input
1-3 Input channel 1 of control module, closed status (INPUT1/I). When
e.g. the circuit-breaker is closed, voltage must be applied to this input
1-4 Input channel 2 of control module, open status (INPUT2/O)
1-5 Input channel 2 of control module, closed status (INPUT2/I)
6-7 Input channel 8 of control module (INPUT 8)
6-8 Input channel 9 of control module (INPUT 9)
9-10 Input channel 12 of control module (INPUT 12)
11-12 Open output 1 of control module (OPEN 1)
13-14 Close output 1 of control module (CLOSE 1)
15-16 Open output 2 of control module (OPEN 2)
17-18 Close output 2 of control module (CLOSE 2)
(5A). Overcurrent protection and measurement
L1
(1A). Overcurrent protection and measurement
L1
(5A). Overcurrent protection and measurement
L2
(1A). Overcurrent protection and measurement
L2
(5A). Overcurrent protection and measurement
L3
(1A). Overcurrent protection and measurement
L3
(100 V). Measurement
12
(110 V). Measurement
12
(100 V). Measurement
23
(110 V). Measurement
23
(100 V). Measurement
31
(110 V). Measurement
31
(5 A). Earth-fault protection
0
(1 A). Earth-fault protection
0
(100 V). Earth-fault protection
0
(110 V). Earth-fault protection
0
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