P-9-TM-457-35 T.O. 35C2-3-442-2
TM-07464A-35 TM 5-6115-457-34
6-165. INSTALLATION. Refer to figure
6-41 and install the over voltage relay
Remove cover from tactical relay
in position using four screw assemblies.
box to gain access to test points,
Replace the tactical relay box and cover.
6-166. REVERSE POWER RELAY (K15).
parallel with another like unit.
6-167. ON EQUIPMENT TEST.
a. Symptom and Isolation of Malfunc-
tion. A malfunction of the reverse power
rated value and mea sure the voltage across
relay K15 is usually indicated by failure
terminals 3 and 4 of relay K15. In addi-
of the generator fault monitoring system
tion, measure the voltage from TB2-5 to
to detect and react to a reverse power con-
K 15 relay terminals 5 and 8. Voltage
should be 20-32 VDC at all points.
sets in parallel. To isolate the malfunc-
tion, proceed as follows.
3. Slowly reduce the generator
set (unit under test) speed while monitor-
ing the voltage across terminals 1 and 2
Exercise extreme care not to touch
of relay K 15 (approximately 9.8 VDC,
exposed electrical connections when
working inside tactical relay box with
terminal 2 positive, at 100 percent load).
When the voltage is zero, reverse the
generator set operating.
Figure 6-42. Over voltage relay (K2), test setup