Alstom MBCH16 - Figure 16: Tripping Contacts Connection Diagram

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Figure 16 Connection for six change-over tripping contacts for three phase
tripping of up to six circuit breakers
Phase ‘A’
All output contacts shown
are instantaneously
initiated for any internal
fault condition when
terminals No. 10 on each
phase unit are connected
together as shown.
Correct phase indication
is maintained.
1
3
5
2
4
6
Phase ‘B’
1
3
5
2
4
6
Phase ‘C’
1
3
5
2
4
6
10
14
13
10
14
13
10
14
13
V
x