Source-changeover systems for circuit breakers ... - Cyberall Group
Source-changeover systems for circuit breakers ... - Cyberall Group
Source-changeover systems for circuit breakers ... - Cyberall Group
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E47076<br />
Electrical diagrams<br />
Remote-operated<br />
source-<strong>changeover</strong> <strong>systems</strong><br />
3 Masterpact NW devices<br />
Diagram no. 51156910<br />
3 sources with only 1 device closed: electrical interlocking without lockout after a fault<br />
SOURCE 1<br />
SOURCE 2<br />
SOURCE 3 Auxiliary<br />
power supply<br />
QS1<br />
QS2<br />
QS3<br />
B3<br />
B2<br />
CH<br />
MCH<br />
B1<br />
MX<br />
C2<br />
C1<br />
XF<br />
12<br />
14<br />
22<br />
24<br />
32<br />
34<br />
42<br />
44<br />
312<br />
314<br />
322<br />
324<br />
Legends<br />
QS... “<strong>Source</strong>” Masterpact NW<br />
MCH spring-charging motor<br />
MX standard opening voltage release<br />
XF standard closing voltage release<br />
OF... breaker ON/OFF indication contact<br />
PF “ready-to-close” contact<br />
CE... “connected-position” indication contact (carriage switch)<br />
CH “springs charged” indication contact<br />
F1 auxiliary power supply <strong>circuit</strong> breaker<br />
t1 order <strong>for</strong> transfer to “<strong>Source</strong> 1”<br />
(QS1 closing time delay = 0.25 sec. minimum)<br />
t2 order <strong>for</strong> transfer to “<strong>Source</strong> 2”<br />
(QS2 closing time delay = 0.25 sec. minimum)<br />
t3 order <strong>for</strong> transfer to “<strong>Source</strong> 3”<br />
(QS3 closing time delay = 0.25 sec. minimum)<br />
t1<br />
A2<br />
A1<br />
252<br />
254<br />
PF<br />
251<br />
OF1<br />
11<br />
OF2<br />
21<br />
OF3<br />
31<br />
OF4<br />
F1<br />
CE1 CE2<br />
41<br />
311<br />
321<br />
CN1 . CN1 +<br />
CN2 . CN2<br />
B3<br />
B2<br />
CH<br />
MCH<br />
B1<br />
MX<br />
C2<br />
C1<br />
XF<br />
t2<br />
A2<br />
A1<br />
252<br />
254<br />
PF<br />
251<br />
12<br />
14<br />
22<br />
24<br />
32<br />
34<br />
42<br />
44<br />
312<br />
OF1 OF2 OF3 OF4<br />
States permitted by mechanical interlocking system<br />
<strong>Source</strong> 1 <strong>Source</strong> 2 <strong>Source</strong> 3<br />
0 0 0<br />
1 0 0<br />
0 1 0<br />
0 0 1<br />
82<br />
Schneider Electric<br />
see your best prices of Merlin Gerin Circuit Breakers, Automatic Transfer Switches and other products at www.cyberallgroup.com/SchneiderElectric<br />
11<br />
21<br />
31<br />
41<br />
CE1<br />
314<br />
311<br />
322<br />
324<br />
CE2<br />
321<br />
B3<br />
B2<br />
CH<br />
MCH<br />
B1<br />
MX<br />
C2<br />
C1<br />
XF<br />
A2<br />
A1<br />
t3<br />
252<br />
254<br />
PF<br />
251<br />
12<br />
14<br />
22<br />
24<br />
32<br />
34<br />
42<br />
44<br />
312<br />
OF1 OF2 OF3 OF4<br />
11<br />
21<br />
31<br />
314<br />
322<br />
324<br />
CE1 CE2<br />
Note:<br />
Diagram shown with <strong>circuit</strong> <strong>breakers</strong> in connected position,<br />
open, charge.<br />
Auxiliary power supply = supply voltage of auxiliary relays<br />
(KA...) = supply voltage of electrical auxiliaries (MCH, MX,<br />
MN...)<br />
41<br />
311<br />
321
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