TM 9-4940-568-34
5-134
5-22. GENERATOR TESTING (CONT).
Table 5-1. Generator Winding Resistances.
MAIN STATOR
PART
NUMBER***
MAIN
STATOR
(OHMS*)
MAIN
ROTOR
(OHMS**)
EXCITER
STATOR
(OHMS**)
EXCITER
ROTOR
(OHMS*)
220-4447-16
0.0561–0.0620
0.57
20.3
0.167
* - These values are approximate, plus or minus 10 percent at 68 F (20 C).
** - These values are approximate, plus or minus 10 percent at 77 F (25 C).
*** - See art on page 5-133 for the location of the stator part number.
g.
Testing PMG Exciter.
The following information is applicable if the generator is equipped with a PMG (permanent magnet) exciter.
(1)
Disconnect leads P2, P3 and P4 from the voltage regulator.
(2)
Start the engine at the set and let the speed stabilize.
