Source-changeover systems for circuit breakers ... - Cyberall Group
Source-changeover systems for circuit breakers ... - Cyberall Group
Source-changeover systems for circuit breakers ... - Cyberall Group
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
E59453<br />
Electrical diagrams<br />
Remote-operated<br />
source-<strong>changeover</strong> <strong>systems</strong><br />
2 Masterpact NT or NW devices<br />
Diagram no. 51201143<br />
Electrical interlocking by IVE with lockout after a fault and emergency off by shunt release<br />
N<br />
QN<br />
R<br />
QR<br />
CH<br />
WH<br />
B3<br />
B2<br />
MCH<br />
B1<br />
MX<br />
VT<br />
C2<br />
C1<br />
(1) Not to be wired <strong>for</strong> the “without lockout after a fault” solution<br />
(2) Not to be wired on fixed version<br />
(3) Prefabricated wiring supplied<br />
Legends<br />
QN “Normal” source Masterpact NT or NW<br />
QR “Replacement” source Masterpact NT or 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 />
SDE1 “fault-trip” indication contact<br />
PF “ready-to-close” contact<br />
CE1 “connected-position” indication contact (carriage switch)<br />
CH “springs charged” indication contact<br />
IVE electrical interlocking and terminal block unit<br />
F1 auxiliary power supply <strong>circuit</strong> breaker<br />
BP emergency off button with latching<br />
KA3 auxiliary relay<br />
ON “Normal” source opening order<br />
OR “Replacement” source opening order<br />
FN “Normal” source closing order (0.25 second delay)<br />
FR “Replacement” source closing order (0.25 second delay)<br />
Wiring colour codes<br />
RD red<br />
GN green<br />
BK black<br />
VT violet<br />
YE yellow<br />
GY grey<br />
WH white<br />
BN brown<br />
XF<br />
A2<br />
A1<br />
GY<br />
252<br />
254<br />
PF<br />
251<br />
BN<br />
C12<br />
82<br />
84<br />
12<br />
14<br />
22<br />
24<br />
32<br />
34<br />
42<br />
44<br />
312<br />
314<br />
MX2<br />
SDE1<br />
C11<br />
(1)<br />
BK<br />
GN<br />
RD<br />
81<br />
OF1<br />
11<br />
YE<br />
OF2<br />
21<br />
(2)<br />
OF3<br />
31<br />
(2)<br />
OF4<br />
41<br />
CE1<br />
311<br />
CH<br />
WH<br />
B3<br />
B2<br />
MCH<br />
B1<br />
MX<br />
VT<br />
C2<br />
C1<br />
XF<br />
A2<br />
A1<br />
GY<br />
252<br />
254<br />
PF<br />
72<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 />
251<br />
BN<br />
MX2<br />
C12<br />
82<br />
84<br />
12<br />
14<br />
22<br />
24<br />
32<br />
34<br />
SDE1<br />
C11<br />
(1)<br />
BK<br />
GN<br />
RD<br />
81<br />
OF1<br />
11<br />
YE<br />
OF2<br />
21<br />
(2)<br />
OF3<br />
31<br />
(2)<br />
42<br />
44<br />
OF4<br />
41<br />
312<br />
314<br />
CE1<br />
311<br />
(3)<br />
(3)<br />
Auxiliary<br />
power supply<br />
N<br />
R<br />
KA3<br />
CN1 . CN1 +<br />
CN2 . CN2<br />
IVE<br />
1 2 3 4 5 6 7 8 9 10<br />
Transfer to<br />
replacement source<br />
ON OR FN FR<br />
Transfer to<br />
normal source<br />
States permitted by mechanical interlocking system<br />
Normal Replacement<br />
0 0<br />
1 0<br />
0 1<br />
Note:<br />
Diagram shown with <strong>circuit</strong> <strong>breakers</strong> in connected position,<br />
open, charged, and ready to close.<br />
Auxiliary power supply = supply voltage of auxiliary relays<br />
(KA...) = supply voltage of electrical auxiliaries (MCH, MX,<br />
MN...)<br />
KA3<br />
F1<br />
BP<br />
KA3
Change language