P-9-TM-457-35 T.O. 35C2-3-442-2
6-172. BENCH TEST.
Replace the tactical relay box and cover .-
a. Connect the short circuit relay to
the test equipment as illustrated in figure
b. Energize 24 VDC power supply and
close switch S3. Indicator DS1 should be
energized and DS2 should be deenergized.
c. Energize 0 to 50 variable power sup-
ply, set switch S2 to position "A" then close
switch S1 and adjust power supply to obtain
3.375 amperes, 50/60 hertz sets; 1.429 am-
peres 400 hertz sets. Indicator DS2 should
energize and DSl should reenergize. Open
Figure 6-44. Short Circuit Relay (K13)
d. Repeat step c. for switch S2 positions
"B" and "C".
6-174. OVERLOAD RELAY (K14).
e . If the short circuit relay does not
meet the requirements of the above tests,
6-175. ON EQUIPMENT TEST.
replace the relay.
f. Remove the short circuit relay from
a. Symptom and Isolation of Malfunction.
the test equipment.
A malfunction of the overload relay K14 is
6-173. INSTALLATION. Refer to figure
usually indicated by failure of the generator
6-41 and install the short circuit relay in
fault monitoring system to detect and react
to a current rise in any phase, beyond
position using four screw assemblies.