what is the working principle of electrical motors?
Answer Posted / victorvgp
FOR D.C MOTORS:
When a current carrying conductor is placed in a
magnetic field, a force acts on it.
FOR A.C MOTORS:
When a current is passed through stator winding, an
alternating flux created on the stator winding which in
turn cuts a rotor winding(wire wound motor)/short circuited
copper bar(squirrel cage motor), then a current flows
through it and as above one motors works.
Is it correct or not?
| Is This Answer Correct ? | 95 Yes | 17 No |
Post New Answer View All Answers
HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
What is Electrical Grade Aluminum for Tubular BusBars. i am confused between 6063 and T6 or T5 and what is BS 2898 and BS 159?
What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.
How to calculate impedance volt in Transformer?
How to minimize the eddy current losses?
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%
WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO
What is Traction? 1KVA Alternator, How much urrent taken?
tan delta equation test on alternators
What is the relation between frequency and motor rpm?
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
What is rotary phase converter?