Selection Guide
13
SecoVac 3.3kV-27kV Embedded Pole Vacuum Circuit Breaker
Interlock system
For personnel safety, SecoVac 3.3kV-27kV
is designed with a number of mechanical
and electrical interlocks. For example,
breaker contacts must be open before
the breaker can be moved from test to
service position. A positive mechanical
stop is provided when the breaker
reaches the service or test/disconnect
positions. Mechanical rejection interlocks
are provided to permit only the insertion
compartments.
These and other necessary interlocks
provide a comprehensive safety system.
Furthermore, springs automatically
discharge when the breaker is withdrawn
from the service position and breakers
cannot be inserted in the closed position.
Typical layout for vacuum circuit breaker
Figure 1. Front facial of the circuit breaker
Figure 2. Primary circuit
Upper contact arm
Embedded poles
Lower contact arm
Tulip cluster
1
2
3
4
1
2
3
4
Tripping button
Status indicator for charging
Closing button
Counter
Indicator for open or close
Charging handle
1
2
3
4
6
1
2
3
4
6
` !
undercart system which can be operated
for racking in and out. The undercart has
an interlock with earthing switch, which
prevents misoperation. And it also allows
earthing function of circuit breaker by
means of metallic structure.
Undercart
Summary of Contents for SecoVac Series
Page 1: ...GE Industrial Solutions 3 3kV 27kV Embedded Pole Vacuum Circuit Breaker ...
Page 2: ...3 3kV 27kV Embedded Pole Vacuum Circuit Breaker ...
Page 11: ...Description 07 SecoVac 3 3kV 27kV Embedded Pole Vacuum Circuit Breaker Applications ...
Page 41: ...Check List 37 SecoVac 3 3kV 27kV Embedded Pole Vacuum Circuit Breaker Check List 38 ...
