INSTALLATION (continued)
1 --- 4
Trans fer Sw itch
Connected
To
Normal
Trans fer Sw itch
Connected
To
Emergency
Normal
Source
Accepted
Emergency
Source
Accepted
Trans fer
Control
Retransfer
Delay
Bypass
Transf er
Test
HOLDFOR
15SECONDS
RED
RED
GREEN
GREEN
()
Automatic Closed Transition
Tran sfe r Switc h
observe
these lights
Extended
Parallel
Time
Failure
To
Synchronize
TS
Locked
Out
Alarm
Reset
Closed
Trans itio n
Bypass
RED RED RED
Figure 1-6. Standard controls and indicators.
2 --- V o l ta g e C h e ck s
First check nameplate on transfer switch; rated voltage
mustbethesameasnormalandemergencylinevoltages.
Before energizing the switch chec kto besure
that both normal and emergencycontacts are
notleftintheclosedposition.
!
Verify that the feeders have been
connected to the proper lugs.
!
Useextremecautionwhenusingameterto
measure voltages. Do not touch power termi-
nals; shock, burns, or death could result !
Performsteps 1 through 6 at the right. Observethe status
lights. See Figure 1---6.
■Black square means light is on.
❐White square means light is off.
* If necessary, adjust voltage regulator on t he generator
according to the manufacturer’s recommendations. The
AutomaticTransferSwitch will respond only to the rated
voltage specifiedon the Transfer Switch nameplate.
Note: Refer t o Sectio n 3 of Group 5 Controller User’s
Guide 381333–126 for how to display the Status of the
ATS and the Voltage and Frequency of each source.
Now continue to 3 --- Electrical Operationon next page.
1
Close the normal source circuit
breaker. The Transfer S witch
Connected To Normal and the
Normal Source Accepted lights
should come on.
2
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
entatthetransferswitchnormal
source terminals.
3
Close the emergency source
circuit breaker. (Start generator,
if necessary.) TheTr ansf er
Switch Connected To Normal &
Emergency Source Accepted
lights should come on.
4
Use an accurate voltmeter to
check phase to phase and
phase to neutral voltages pres-
ent at the transfer switch emer-
gency source terminals.*
5
Useaphaserotationmeterto
check phase rotation of emer-
gency source; it must be the
same as the normal source.
ABC
6
Shut down the engine–genera-
tor, if applicable. The Emergen-
cy Source Accepted light should
go off. Then put the starting
control selector switch (onthe
generator set) in the automatic
position. Close enclosure door.