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I AM WORKING ON A CUMMINS-ONAN GENSET. THE FIELD BREAKER TRIPS JUST AS THE GENERATOR STARTS TO PRODUCE VOLTAGE. MOTOR CONTINUES TO RUN BUT BREAKER TRIPS AGAIN.
Submitted: 2 years ago.Category: Electrical
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Answered in 34 minutes by:
3/4/2016
Electrician: Phil, Mechanical Engineer replied 2 years ago
Phil
Phil, Mechanical Engineer
Category: Electrical
Satisfied Customers: 9,805
Experience: Retired electrical contractor, 51 years experience.
Verified

Hello, you need a clamp around type amp meter to check the amperage draw at the breaker before it trips in order to determine if its a bad breaker, tripping prematurely, or a dead short somewhere in the attached circuit.

$30 at harbor freight and $50 at a big box home repair store for a clamp around meter that will work at least.

We can go from there

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