Load testing a GFCI protected conductor

[ELSLI]

Scenario: A pool filter is tripping a 240V single phase GFCI Breaker. The breaker holds with no load on it.

Can any one suggest a good way to load test the conductors and breaker to rule them out as the cause of the problem. I don't like telling a homeowner to get a pump serviced or replaced if the problem is with the circuit.

I considered a 240V electric heater, not the most efficient thing to carry on a truck. I feel a load test on the conductors is the best test to rule them out. If the breaker still trips then I would suspect a conductor is failing under load.

Perhaps I am thinking this through wrong.
Thanks for any suggestion.

 

[luckylerado]

Scenario: A pool filter is tripping a 240V single phase GFCI Breaker. The breaker holds with no load on it.

Can any one suggest a good way to load test the conductors and breaker to rule them out as the cause of the problem. I don't like telling a homeowner to get a pump serviced or replaced if the problem is with the circuit.

I considered a 240V electric heater, not the most efficient thing to carry on a truck. I feel a load test on the conductors is the best test to rule them out. If the breaker still trips then I would suspect a conductor is failing under load.

Perhaps I am thinking this through wrong.
Thanks for any suggestion.

Can you temporarily move the water heater to the pump breaker and just dump some hot water until it cycles on. You could also throw a megger on the truck. Takes up less space then a heater. :roll:

 

[kwired]

sounds like you need to megger the motor plus portion of circuit on load side of controller as well.

 

[ptonsparky]

Disconnect the motor leads at the motor. Turn the circuit on. No trip means it is the motor. Does it pass the smell test? Trip means the circuit to it.

Either way, buy a Megger.