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INSTALLATION (continued)
1 --- 5
observe
these lights
RED RED RED
RED
RED
GREEN
GREEN
operate
this switch
Figure 1-7. Standard controls and indicators.
3 --- Electrical Operation
This procedure will check the electrical operation of the
Automatic Closed–Transition Transfer Switch. See
F i gu r e 1 --- 7 .
Be sure to close the enclosure door
before proceeding to prevent personal
injury in case of electrical system fault.
Transfer Te st
Both normal and emergency sources must be available
and the emergency source generator (if used) must be
capable of being started in this procedure.
Perform steps 1 through 5 at the right. Observe the
status lights.
Q Black square means light is on.
S White square means light is off.
** If you do not
want closed–transition transfer, press
the Closed Transition Bypass pushbutton while the
controller display shows Waiting for In–Sync.This
action causes open–transition (momentary load
interruption) transfer to the opposite source, if
conditions permit. Also refer to the Group 5 Controller
User’s Guide 381333–126.
This completes the Functional Test of the ACTS.
1
The Transfer Switch Connected
To Normal and Normal Source
Accepted lights should be on.
2
Turn and hold Transfer Control
switch clockwise to Transfer T est
until the engine starts and runs
(within 15 sec.). Emergency
Source Accepted light should
come on.
3
Transfer switch CE closes and
then Transfer Switch CN opens
(closed–transition overlap). The
Transfer Switch Connected To
Emergency light should come on
and the Transfer Switch
Connected to Normal light goes
off (you might see and hear the
brief overlap transfer). **
4
Transfer switch will operate back
to Normal position after Feature
3A time delay. For immediate
retransfer turn Transfer Control
counterclockwise to Retransfer
Delay Bypass.TheTransfer
Switch Connected To Normal light
should come on; Transfer Switch
Connected to Emergency light
should go off.
5
The engine–generator will stop
after the Feature 2E time delay
(unloaded running engine cool-
down). The Emergency Source
Accepted light should go off.