if 20 hp motor starts directly stars and contenious run .
what will be the effect.

Answer Posted / umesh

whenever we starts the 20hp motor directly with the mains
then its winding will be burnt, because the motor winding
have less then 10ohms, whenever current flows though the
winding the current will be 5000A, then it will be burnt.
that's way we use the starters for safty.

Is This Answer Correct ?    2 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the instrument to check the rotating diode fuse of alternator in running conditions?

2016


give single line diagram of D.G distribution form alternator to main L.T panel?

7039


What is the emf equation of a transformer?

675


why all the feeders are designed in a particular manner ... is there any reason for that???

1501


How does PLC work for sychronising of Two or more DG sets?

1646






what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?

1481


What is making & breaking current ???

979


10 Mtr Hight of Lighting Arrestar how much area coverd??

2028


i want to model paper for section engg.

1573


pls,send the previous year written test questions.

1453


What are the advantages of stationary armature and rotating field system?

707


what is the difference between the characteristics of two different phase bushing of any transformer

1344


Please explain me abt PQ diagaram in the power sector.

1926


A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N

2151


what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please

2988