jerjwillelec
Senior Member
- Location
- Nevada, IA
This is a spinoff from "Megging Motors". I'm troubleshooting (existing and aged) grain elevator exhaust fans. Six silos, two exhaust fans per silo. The motors are 460 volt 2 HP. I've found the issues in ten of the twelve motors. The last two are tripping the MCC bucket breaker instantly on startup. 498 vac on all three phases...flip the switch and trip.
Bad motor? Or bad conductors that cause tripping only under load? I tried megging the motors with my Fluke 1507 but quite honestly haven't had much training on megging so I don't know exactly what I'm doing. I haven't megged the conductors (because I just thought of it) yet.
Thank you!
Bad motor? Or bad conductors that cause tripping only under load? I tried megging the motors with my Fluke 1507 but quite honestly haven't had much training on megging so I don't know exactly what I'm doing. I haven't megged the conductors (because I just thought of it) yet.
Thank you!