3. TROUBLESHOOTING
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wire of the tested winding, and another is connected with iron core. Next wave the
megohmmeter from slowly to fast, and the meter needle follows wave. When the meter
needle is stable, the value indicated by the needle is the winding to ground insulation
resistance value.
Collector Ring to Ground Insulation Resistance Testing
One of the megohmmeter’s terminals is connected through the insulation wire with a
copper ring of the connecting ring, and another is connected with iron core. Next wave
the megohmmetr from slowly to fast, and the meter needle follows wave. When the
meter needle is stable, the value indicated by the needle is the insulation value of the
tested copper ring.
Generator Winding Breaker Circuit Testing
Use the multimeter to test. Put the red pen and the black pen to the winding’s terminal. If the
meter wave normally, it means the winding isn’t broken; if the meter needle is quiet, it
means the tested winding is broken.
COLLECTOR RING
CONNECT WITH
THE COPPER CORE
MEGOHMMETER