Hi

Question:
Somebody know how to test protection relays in a "hot condition". For example: If I have installed a GFCI relay in my systems, for maintenance routine I would like to perform a test in order to check the GFCI relay conditions??

Choices:
How to test a GFCI relay?
Which kind of instruments I should use for GFCI relay test?

 

What does GFCI stand for?

Is motor protection relay?

I'm not elec engr but from my invovlment in preventive maintenance & CMMS, the testing on protection relays is carried out during shutdown. How nice if hot testing can be done.

GFCI Testing involves inserting a calibrated "defect" into the circuit to test the operation of the protector. The most typical application is for household use. For testing household applications there is a GFCI tester available. There are also GFCI breakers that are tested in a similar manner.

here is a household GFCI
http://www.ul.com/consumers/groundfault.html


Hope this helps

We had a couple of instances where construction electricians tested GFCI protected instrumentation circuits with a solenoid type tester (commonly called a Wiggy), hot wire to ground, and inadvertently tripped the circuit with the tester.

We weren’t too happy about the unplanned event and outlawed the solenoid testers in all but our electrical maintenance department.

I guess that’s one safe way to test your GFCI if you don’t have an available outlet to use a plug style GFCI tester on.