GE Industrial Solutions Entellisys Low Voltage Switchgear - Manuel (Page 15)

Entellisys Low Voltage Switchgear
15
Figure 3-7 also shows the shutter assembly with the shutters
manually retracted to show the location of the primary
disconnect stabs behind the shutter assembly.
1. Stationary barrier
2. Moving barrier
3. Operating lever
4. Secondary disconnects
5. Primary disconnect stabs
Fig. 3-7. Entellisys primary disconnect shutter assembly (Envelope
1 cassette). Shutters manually retracted.
Fig. 3-8. EntelliGuard E circuit breaker
The cassette racking arm slots engage fixed racking anchor pins
on the sides of the breaker. As the racking arms are rotated by
operation of the racking crank, the breaker is pulled into the
compartment, and locked in its final connected position.
The breaker should always be OPEN when it is moved into or out
of the CONNECTED position. As a safeguard, a draw out
interlock will cause the breaker to open before the breaker is
able to be moved.
All EntelliGuard E circuit breakers of the same type and rating
may be interchanged.
Each breaker compartment has four positions as described in the following chart:
Breaker Position in
the Cassette
Primary
Disconnects
Secondary
Disconnects
Circuit Breaker Functionality
Circuit Breaker
Door Position
CONNECTED Engaged Engaged

Circuit Breaker can be operated mechanically or
electrically.
 Breaker ready for Service
Closed
TEST Disengaged Engaged

Circuit Breaker can be operated mechanically or
electrically.
 Breaker and Control circuits operations can be
tested and verified
Closed
DISCONNECTED Disengaged Disengaged

Circuit Breaker can be operated only mechanically
 Breaker cannot be removed from the circuit
breaker compartment Closed
WITHDARWN Disengaged Disengaged

Circuit Breaker can be operated only mechanically
 Breaker can be removed from the circuit breaker
compartment Open
Table 3-1. Description of the breaker positions.
2
1
3
4
5