itsmoked,
Please pardon my ignorance.
1. I see in NFPA about provision of overcurrent protection (clause 10.4.3.3) as well as locked rotor overcurrent protection (clause 10.4.4)That is why, I was confused.
2. Me too have heard about run-to-destruction philosophy. But does NFPA say that it...
Are there any special considerations in designing the electrical protection of motors driving Firewater pumps (NFPA design)? Is there any practice of providing only minimum protections for these motors? (only overcurrent / earth fault in place of comprehensive protection including locked rotor /...
We took up with the motor manufacturer and he confirmed that it cannot be run in horizontal position exactly due to the reasons mentioned by aolalde and others. We managed to run the motor in vertical position itself yesterday, by making suitable arrangements.
Thanks one and all of you for...
We have a recently repaired motor (3300 V, 360 kW, 1000 rpm, vertical sq. cage induction motor). Is it safe to take no load test run of the motor, keeping it in horizontal position? This is required since we do not have the right jig / fixture to mount the motor in our workshop in vertical position.
