ARMY TM 9-6115-645-24
AIR FORCE TO 35C2-3-444-12
MARINE CORPS TM 09244A/09245A-24/2
2-57 PERMISSIVE PARALLELING RELAY.
2-57.1
a.
b.
2-57.2
a.
b.
c.
d.
e.
f.
Inspection.
Shut down generator set.
Inspect relay for cracked casing, burned or broken terminals, and other damage.
Testing
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Release control panel by turning two fasteners and lower control panel slowly.
Disconnect and insulate wires 102D from terminal 1, and 196A and 196B from terminal 2 of permissive parallel-
ing relay.
Mark a 10,000 ohm potentiometer as follows:
Center terminal = C
Two outside
terminals = L and R
Set up a test circuit as shown in FIGURE 2-15. Connect 120 VAC source (can be obtained from convenience
receptacle) to terminals L and R of potentiometer. Connect a wire from terminal C of potentiometer to terminal
1 of permissive paralleling relay. Connect a second wire from terminal R of potentiometer to terminal 2 of per-
missive paralleling relay. Set multimeter for AC volts and connect to terminals 1 and 2 of permissive paralleling
relay.
FIGURE 2-15. Permissive Paralleling Relay Test Set-up
2-87
