ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
5-37
FIGURE 5-4. OUTPUT BOX COMPONENTS (SHEET 2 OF 2)
FIGURE 5-5. TESTING CURRENT TRANSFORMER
b. Testing.
(1)
Remove droop current transformer, refer to paragraph 5.8.5.a.
(2)
Set multimeter for ohms, and check for continuity between secondary leads 1 and 2. If
continuity is present, continue with test. If continuity is not present, droop current transformer is
defective and must be replaced.
(3)
Set up a test circuit using 10 gauge wire as shown in Figure 5-6. Make 10 passes with wire
through window of droop current transformer.
(4)
Turn on power source and load bank. Adjust load bank until 20.8 amps is indicated on AC
ammeter.
(5)
Set multimeter for AC amperes, and connect to secondary leads 1 and 2. Multimeter indication
must be 0.9 to 1.1 amps.
(6)
Replace droop current transformer if multimeter indication in any phase is other than stated in
step (5).
