Why sip ring used in ac motor also why its not used in dc motor?

Answer Posted / r g sabnis

Well, the slip rings are used in AC ( Crane duty Motors )

to add extrenal resistance to increse starting torque.

DC motors are with different construction. A commutator is
used to supply DC to armature.

Is This Answer Correct ?    4 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What type of DC motor would you see for a lift?

647


to hook up ten 50 amp rv pedastels at a lenth of 600 feet from the service what size will my service need to be and the size of wire will I have to run to each pedastel in series??????

1494


How to calculate mf when meter equipment and meter are connected

1273


what is droop control?

1626


What are the two segments of nyquist contour.

650






1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

1589


Explain the working of any one cutting machine

662


what is the range of maximum DOL and SDS can be use for pump and fan application

632


what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line

2862


why are the maintaine power factor and how can this control and this is how work.

1479


what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1377


State any two nuclear power stations in India, with their generating capacity.

1393


what is W.T?specify the acceptable range?

1510


In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.

1630


please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

1703