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

Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

1651


Tell me all plants load factors i.e which plant operating on which load?

1564


why the active power flow of some line is increased when the active power of out is cut ?

1655


ROC converges if poles and zeros lie inside a. Origion b. Z=1

1804


what is meant by neutral compensation factor and where it is used

1458






List advantges of active filter over passive filter?

641


what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

1781


please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

1522


How does HT work & Voltage required?

1756


working principle a.v.r. ?

1922


How do you select the pickup value of the relay?

826


What are the advantages of vscf wind electrical system?

659


please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

1839


Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

1729


the typical output of a solar cell is........

1850