what is the function of commutator in dc motor?

Answer Posted / anil bhatia

commutator is basically a midiam by which current is passed
through from fixed conductor to rotating field of rotor or
vise versa.

Is This Answer Correct ?    2 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is the difference between Static and servo controlled voltage stablizer?

1641


What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1553


What are the conditions to be satisfied for parallel operation of dc generators?

621


What does the term power factor shows?

601


What is the formula to calculate the no load current of a single & three phase induction motor

1767






how to handle 2500 kva transformar

1135


A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1335


when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?

1755


describe the A.C. Generator Testing procedure

1640


What is diversity factor in electric installations?

704


While testing a ZCT what parameters have to check or measure?

1891


What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

1762


Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.

2888


What is the difference between resistance grounding system and resistance earthing system?

636


In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?

1754