WHAT HAPPEN IF LT SUPPLY 415 V FED TO THE HT 3.3KV MOTOR
- 1 Answers
- 4518 Views
- I also Faced
- E-Mail Answers
Answer Posted / a.p.nanjappa
please note that insulation of the motor is rated for
3.3kv.,which is a medium voltage.
Now ,when we apply a low voltage 415v, the motor will crawl
and draws heavy current.so the upstream device or the
circuit breaker trips.
We have also experienced that cubile arcing fault takes
places and burns the cabinet metal clad cabinets.If it a
old module,then the arc chute of the CB FEEDER burns/smokes.
| Is This Answer Correct ? | 0 Yes | 5 No |
Post New Answer View All Answers
How many double suspension hardware fittings are required on a double circuit transmission tower?
Difference between RCCB, RCBO and ELMCB.
what are carbondioxide and dcp used in fire extinguishers
why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?
What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?
What is the difference between Encoder and Resolver?
how maney type tempereture measurement ?
What are the different types of controllers?
i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com
what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq
why we use 630mm single core cable for transformer secondary side and why two neutral cable
I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....
What is stepper motor. What is its uses?
how you configure motorvision relay (L&T make)from DCS
sir plz send some previous year questions of jspl.
