Filter
Top Products
INSTALLATION (continued)
1 --- 5
Transfer Switch
Connected
To
Normal
Transfer Switch
Connected
To
Emergency
Normal
Source
Accepted
Emergency
Source
Accepted
Transfer
Control
Retransfer
Delay
Bypass
Transfer
Test
HOLDFOR
15SECONDS
RED
RED
GREEN
GREEN
(
)
Automatic Closed Transition
Transfer Switch
observe
these lights
Extended
Parallel
Time
Failure
To
Synchronize
TS
Locked
Out
Alarm
Reset
Closed
Transition
Bypass
RED RED RED
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
Fi g ur e 1 --- 7 .
Close the enclosure door first.
!
Transfer Test
Both normal and emergency sources must be available
and the emergency source generator (if used) must be
capable of being started in this procedure.
Performsteps 1 through5 at the right. Observe the status
lights.
■ Black square means light is on.
❐ White square means light is off.
**If you do not
want closed–transition transfer, pressthe
Closed Transition Bypass pushbutton while the
controller display shows Waiting for In–Sync.Thisaction
causes open–transition (momentary load interruption)
transfer to the opposite source, if conditions permit.
Also refer to the Group 5 Controller User’s Gu ide
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 Test
until the engine starts and runs
(within 15 sec.). Emergency
Source Accepted light sh ould
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.