nader NDW3 Series Manual page 74

 Interlocking pattern selection is shown in the table below
Selection
Code
mode
1 SR11
2 SR12
3 SR21
4 SY11
5 SY12
 Circuit breaker can be applicable to the following power supply state interlocking
1) Two circuit breakers (one for closing and one for opening)
Usage mode is shown in the figure below, while interlocking action state is shown in the figure below.
Breaks
2) Three circuit breakers (one for closing and two for opening)
Usage mode is shown in the figure below, while interlocking action state is shown in the figure below.
opening)
3） Three circuit breakers (two for closing and one for opening)
Internal & confidential file
File No.:NDT2920202
Type
Two sets of cables, one for
closing and one for opening
Three sets of cables, one for
closing and two for opening
Three sets of cables, two for
closing and one for opening
Two sets of hard rods, one for
closing and one for opening
Three sets of hard rods, one
for closing and two for
opening
Status table of three circuit breakers (one for closing and two for
第 74 页 共 149 页
Number of circuit
breakers
2
3
3
2
3
Status Table of Two Circuit
U1
Close
Shunt
Shunt
U1 U2
Close Open
Shunt Close
Shunt Open
Shunt Shunt
File Version:4
U2
Open
Close
Shunt
U3
Open
Open
Close
Shunt