ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
Set up a test circuit as shown in FIGURE 2-15. Connect 120 VAC source (can be obtained from convenience recep-
tacle) to terminals L and R of potentiometer. Connect a wire from terminal C of potentiometer to terminal 1 of permis-
sive paralleling relay. Connect a second wire from terminal R of potentiometer to terminal 2 of permissive paralleling
relay. Set multimeter for AC volts and connect to terminals 1 and 2 of permissive paralleling relay.
Adjust 10,000 ohm potentiometer to full counterclockwise position.
Connect negative battery cable.
Start and operate generator set at rated frequency and voltage. Multimeter indication should be 0 volts.
FIGURE 2-15. Permissive Paralleling Relay Test Set-up
Move AC CIRCUIT INTERRUPTER switch to CLOSED position and AC circuit interrupter relay should close. Move
AC CIRCUIT INTERRUPTER switch to OPEN position and AC circuit interrupter relay should open. Observe AC
CIRCUIT INTERRUPTER light for actuation of relay.
Adjust 10,000 ohm potentiometer clockwise until multimeter indicates 10 VAC.
Move AC CIRCUIT INTERRUPTER switch to CLOSED position. The AC circuit interrupter relay should not close
(AC CIRCUIT INTERRUPTER light should remain dark).
m. Shut down generator set.
Disconnect negative battery cable.
Replace permissive paralleling relay if operation is not as above.
If no repair is needed, remove multimeter and test circuit wires. Reconnect wires 102D, 196A and 196B to permis-
sive paralleling relay.
Raise and secure control panel.
Connect negative battery cable and close battery access door.
a. Shut down generator set.