IF we have three 30KW motor, these motors are connected in
DOL, star-delta and VFD respectively, what will be the fuse
rating for the above three?

Answer Posted / raymondraju05@gmail.com

30kw motor full load 54amps starting current upend on type of rotor like(single,double,deep bar cage) so single cage 4 to 5 times, double cage 3 to 31/2 times, deep bar 2 to 3 time at the time of starting. Now we can decide to witch of motor used as say above.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the size of ht cable of 33kv ht line and transformers ratings are 1 Mva and 5mva.please send formula also.

992


I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

2018


how the works electronic energy meter?

1663


How halogen & merquery lamp works.

1679


what is allowed value of zero sequence impedancce of 6.6 kv nuetral earthing transformer ?what is the actual value

1655






my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

883


What does the kvar means?

659


Explain about p.t?

665


Define thermal resistance in the context of power amplifier.

598


What is the restart inhabit setting in ABB spam150c relay (Motor protection relay)

3043


WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?

1708


Why do power lines not short out when they fall into water?

1492


Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)

1670


Why we are going for converter transformers for DC drives application instead of distribution transformer?

1436


what are the steps involved in generator load test?

1094