Powered by Safety
®
40
Operation
01.4IB.51000C
PowlVac® Metal-Clad Switchgear
5kV & 15kV
D. r
AckInG
p
roceDure
(m
AnuAl
)
CAUTION
Before inserting the circuit breaker into the
compartment, be sure that the racking crank
arms of the circuit breaker are in the fully
withdrawn position, pointing towards the
moveable primary disconnects. Otherwise,
the primary disconnects, shutters, or the
racking mechanisms may be damaged.
Prior to inserting the circuit breaker into the
circuit breaker compartment, make sure that
the control circuits are deenergized.
!
CAUTION
1) Inserting the Circuit Breaker to the
Test/Disconnected Position
a. Verify that the circuit breaker
open/closed indicator displays
“
BREAKER OPEN
” and if not, press the
manual trip operator to open the circuit
breaker.
b. To insert the circuit breaker into the
lower circuit breaker compartment,
open the compartment door and align
the wheels with the floor pan channels
of the compartment. Verify that the
floor pan channels are free of debris
prior to inserting the circuit breaker.
c. Roll the circuit breaker in the
compartment until the racking crank
arms make contact with the vertical
slots in the compartment. The
anti-rollout latch on the lower right side
of the circuit breaker will engage the
block in the compartment, preventing
accidental removal of the circuit breaker
from the compartment.
Note:
This is the Disconnected Position.
Figure 28 Secondary Disconnecting Device
a
b
c
d
a. Handle
b. Secondary Disconnect Receptacle
c. Secondary Disconnect Plug
d. Secondary Disconnect Latch
d. Insert the circuit breaker compartment
secondary disconnect plug into the
circuit breaker secondary disconnect
receptacle (Figure 28). Be sure to insert
the plug fully and ascertain that the
secondary disconnect latch, located
just below the secondary disconnect
interlock, has engaged the pin on the
interlock bar.
Note:
This is the Test Position.