TM 5-6115-465-34
TO 35C2-3-446-2
NAVFAC P-8-625-34
TM 06858B/06859D-34
voltages of a polyphase generator may be an indication
7-12. MALFUNCTION INDICATOR TEST.
that the generator set has been improperly manufactured
or damaged.
a. The malfunction indicator system is electrically
isolated and independent of the protection system.
b. Apparatus. A frequency meter (or tachometer)
Testing of the indicators can be accomplished at the
as described and illustrated in MIL-HDBK-705, Method
same time that the protective devices are tested in tests,
104, or 109.1 and an rms indicating ac voltmeter having
6, 9, 10, 11, 12, 14, 15, 16, 17 and 18 of table 7-1.
an accuracy of + 0.1% of the reading shall be required
to perform both procedures, A means of separately
b, In the event that one of the indicator circuits
exciting the generator is required since procedure II is
does not work, verify that the lamp is functional by
performed.
operating the test and reset switch on the fault indica-
tor panel.
c. Generator With Separate Excitation.
7-13. PHASE BALANCE TEST VOLTAGE.
(1) Preparation for test.
a. General. Polyphase electrical equipment
may
not operate properly or may be damaged if the
phase
voltages of a polyphase generator differ greatly
from
(a) Completely isolate the generator windings
each other. Also, large differences between the
phase
(armature coils and field windings).
7-2.1 /(7-2.2 blank)
Change 7
