EntelliGuard G
TM
Breaker Test Cabinet
Section 3. Description and Principles of Operation (cont.)
CAUTION:
The green ground wire and test connector
must be connected to the breaker before the power is
turned on.
OPERATION OF TEST CABINET:
(Circuit breaker must be
out of its cubicle)
1. Make sure both CONTROL POWER switches are in the
“OFF” position.
2. Connect the green ground wire to the breaker frame.
3. Plug the TEST CONNECTOR into the breaker
secondary disconnect. Use only the secondary
disconnect on the top left of the breaker (viewed
from the front of the breaker). Make sure the TEST
CONNECTOR is fully engaged into the breaker
secondary disconnect.
4. Turn the CLOSE & TRIP power switch to the “ON”
position. The trip power and close power indicating
lights should be illuminated. If any of the indicating
lights fail to illuminate, check the appropriate control
power fuse(s) located at top. If the fuses are not
blown, check the lamp in the indicating light
assembly.
5. Move the CHARGE MOTOR CONTROL POWER switch
to the “ON” position to charge the closing springs.
The charge control power indicating light should be
lit. The charge switch can remain in the “ON” position
during testing.
6. The circuit breaker close and trip circuits can now be
exercised by operating the CLOSE and OPEN
switches on the test cabinet. Operation of the
breaker auxiliary switch can be verified by observing
the RED and GREEN indicating lights on the test
cabinet. When breaker contains a command close
coil (ccc) the operations as follows. For closing rotate
and hold the close switch to the right. Push the
green button on the breaker. This button is located
between the Close & Trip buttons when a command
close coil is present.
7. Undervoltage coil 1 operation (when equipped) can
be verified by rotating UV1 switch to the left.
8. Shunt trip coil 2 operation (when equipped) can be
verified by rotating the TRIP2 / UV2 switch to the left.
9. Undervoltage coil 2 operation (when equipped) can
be verified by rotating switch from right position to
center. When the breaker is equipped with UV2, the
TRIP2 / UV2 switch must be turned to right position
before closing breaker or the breaker will go trip free.
10. When breaker testing is complete, turn the CONTROL
POWER and CHARGE switches to the “OFF” position.
Pull the TEST CONNECTOR out of the breaker
secondary disconnect. Remove the green ground
wire from the breaker frame.
11. Discharge the charging spring before attempting to
install the breaker into its cubicle.
Section 4. Installation
The test cabinet should be installed on the wall at a
location where maintenance and testing of the breaker
can be conveniently done.
Conduits may be installed for cables to supply control
power for testing. Two 1-inch diameter holes are located
on the left side to accommodate wiring. Refer to the
wiring diagram in Figure 2 for control power connections
and jumper positions.
Section 5. Maintenance
Aside from keeping the unit clean and dry, the most
important thing is to return the clamp to the cabinet area
when not connected to a breaker.
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