Electrical diagrams.pdf
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Electrical diagrams
Source-changeover systems
Compact NSX100-630,
Compact NS630b-1600,
Compact INS/INV, Masterpact
Presentation
2
Functions and characteristics
A-1
Dimensions
B-1
Remote-operated source-changeover systems
2 Compact NSX100/630 devices
C-2
2 Compact NSX100/630, NS630b/1600 or Masterpact NT/NW devices
C-5
Source-changeover systems with automatic controllers
2 Compact NSX100/630, NS630b/1600 or Masterpact NT/NW devices
C-6
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2 Compact NSX100/630, NS630b/1600 or Masterpact NT/NW devices
C-8
Remote-operated source-changeover systems
2 Compact NS630b/1600 devices
C-9
2 Masterpact NT or NW devices
C-12
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&
Source-changeover systems with automatic controllers
2 Masterpact NT or NW devices
C-26
Catalogue numbers and order forms
D-1
C-1
Remote-operated
source-changeover systems
2 Compact NSX100/630 devices
Diagram no. 51201177
Electrical diagrams
Source-changeover system without automatic-control system
Without auxiliaries for emergency off
Local reset
Voluntary remote reset
Automatic reset
(1)
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States permitted by mechanical interlocking system
Normal Replacement
0 0
1 0
0 1
Note:
diagram shown with circuits de-energised, circuit breakers
open and relays in normal position.
Legends
QN
“Normal” source Compact NSX equipped with motor mechanism
QR
“Replacement” source Compact NSX equipped with motor
mechanism
SDE
“fault-trip” indication contact
IVE
electrical interlocking and terminal block unit
MT
motor mechanism
OF2
breaker ON/OFF indication contact
RN
reset order for breaker QN
RR
reset order for breaker QR
C-2
Remote-operated
source-changeover systems
2 Compact NSX100/630 devices
Diagram no. 51201178
Electrical diagrams
Source-changeover system without automatic-control system
With emergency off by MN release and automatic reset
KA5
KA5
Automatic reset
KA5
KA5
(1)
Prefabricated wiring supplied.
(2)
Independent auxiliary source.
Legends
QN
“Normal” source Compact NSX equipped with
motormechanism
QR
“Replacement” source Compact NSX equipped with motor
mechanism
MN
undervoltage release
OF2
breaker ON/OFF indication contact
SDE
“fault-trip” indication contact
MT
motor mechanism
IVE
electrical interlocking and terminal block unit
BP
emergency off button with latching
KA5
auxiliary relay
F1
States permitted by mechanical interlocking system
Normal Replacement
0 0
1 0
0 1
Note:
after a fault trip, the breaker must be reset manually by
pressing its reset button.
Diagram shown with circuits de-energised, circuit breakers open
and relays in normal position.
auxiliary power supply circuit breaker
C-3
Remote-operated
source-changeover systems
2 Compact NSX100/630 devices
Diagram no. 51201179
Electrical diagrams
Source-changeover system without automatic-control system
With emergency off by MX release and automatic reset
Automatic reset
(1)
Prefabricated wiring supplied
(2)
This source can be:
b
the source present in the case of voltage monitoring
b
an independent source.
In this case, the MX release must be protected.
(3)
The reset orders must be delayed by 0.3 seconds.
Legends
QN
“Normal” source Compact NSX equipped with motor
mechanism
QR
“Replacement” source Compact NSX equipped with motor
mechanism
SDE
“fault-trip” indication contact
OF2
breaker ON/OFF indication contact
MX
shunt release
MT
motor mechanism
IVE
electrical interlocking and terminal block unit
KA5
time-delayed auxiliary relays
KA6
time-delayed auxiliary relays
F1
States permitted by mechanical interlocking system
Normal Replacement
0 0
1 0
0 1
Note:
after a fault trip, the breaker must be reset manually by
pressing its reset button.
Diagram shown with circuits de-energised, circuit breakers open
and relays in normal position.
auxiliary power supply circuit breaker
F2
auxiliary power supply circuit breaker
C-4
Remote-operated
source-changeover systems
2 Compact NSX100/630, NS630b/1600
or Masterpact NT/NW devices
Electrical diagrams
Electrical interlocking by the IVE unit
Independent order to Normal/Replacement source
Simultaneous order to Normal/Replacement source
CN CR
CN CR
Order for transfer to
"Replacement" source
(
Closure order to
"Replacement" source
KA1
KA1
KA1
KA1
Order for transfer to
"Normal" source
(
Closure order to
"Normal" source
KA2
KA2
KA2
KA2
KA3
Opening order to
"Normal" source
KA3
Opening order to
"Replacement" source
KA4
KA4
Controlling each circuit breaker independently.
Control of two circuit breakers by “common” transfer order.
(1)
See section “IMPORTANT” here after.
(2)
Operating diagram: the SDE “fault-trip” signals are transmitted to the IVE unit. The SDE auxiliary contacts are mounted in the circuit breakers.
IMPORTANT
The relays controlling the closing order to the “Normal” and “Replacement” circuit breakers must be mechanically and/or electrically
interlocked to prevent them from giving simultaneous closing commands.
It is recommended to use Tesys K relays from Schneider Electric reference LC2-K06010pp. These relays are mechanically and electrically
interlocked.
Legends
ON
Note:
diagram shown with circuits de-energised, circuit breakers
open and relays in normal position.
“Normal” source opening order
OR
“Replacement” source opening order
CN
“Normal” source closing order
CR
“Replacement” source closing order
KA1
auxiliary relay
KA2
auxiliary relay
KA3
auxiliary relay
KA4
auxiliary relay
L1
“Normal” source “fault-trip” signal
L2
“Replacement” source “fault-trip” signal
N
“Normal” source auxiliary wiring connector
R
“Replacement” source auxiliary wiring connector
C-5
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