19 – 6
19.1.5
Mechanical interlocking three sources (open transition to standby system)
The standby system is mechanically interlocked with the two source circuit breakers to prevent paralleling the standby system with either or
both primary source(s).
Description:
Two circuit breakers (S
1
, S
3
) can be independently opened and closed, the third (S
2
) being ready to close only if the other two are open. If
the third is closed, the other two cannot be closed.
Materials required:
Each circuit breaker has an interlocking module and a Bowden cable. A Bowden cable must be ordered separately.
Order no.
Connections of Bowden cables:
Example
Possible circuit breaker states
S
1
S
2
S
3
1st Bowden cable:
S
1
A
1
-
S
2
E
1
2nd Bowden cable:
S
2
A
1
-
S
1
E
1
3rd Bowden cable:
S
2
A
2
-
S
3
E
1
4th Bowden cable:
S
3
A
1
-
S
2
E
2
S
1
S
2
S
3
Содержание UL 1066
Страница 43: ...6 12 7 Reset reclosing lockout 8 Charge closing spring 9 Switch ON Frame size II Frame size III 9X ...
Страница 56: ...7 5 7 2 Frame size II fused ...
Страница 58: ...7 7 ...
Страница 63: ...7 12 8 27 210 0 8 27 210 0 8 27 210 0 3 75 95 2 ...
Страница 64: ...7 13 ...
Страница 65: ...7 14 7 7 Frame size III fuse carriage ...
Страница 66: ...7 15 ...
Страница 69: ...7 18 7 9 External sensor for neutral conductor WLNCT2 ...
Страница 70: ...7 19 WLNCT3 ...
Страница 85: ...9 5 I tripping Ground fault tripping ...
Страница 231: ...15 12 Pre assembling the locking module Installing 0767 1 2 3 4 6 5 ...
Страница 232: ...15 13 1 Socket head cap screw M5 with washer and nut 7 8 Size 4 5 Nm 45 lb in ...
Страница 271: ...19 10 Function check Then Fit back front panel and side cover on the right if it was removed page 23 4 10 ...
Страница 280: ...21 2 Installing the door sealing frame Not for use with fuse carriages Catalog No Door sealing frame WLDSF 1 2 3 NOTICE ...
Страница 289: ...23 7 23 3 3 Installing arc chutes 1 2 6 5 PH 2 0043 02 3 4 5 6 For frame size III 3 PH 2 ...
Страница 298: ...23 16 6 7 8 9 5 2 1 Size 5 mm ...
Страница 333: ......