what happens when ac supply is given to D.C motor.
Answer Posted / swarupa
In ac supply the magnitude and direction of voltage or
current changes for every half cycles so the dc motor may run
but in very low speed due to less torque develop & also due
to inertia.If it is run continue the frequency losses may
increase due to high heat.The efficiency poor.
Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
why induction motors are rated at 0.8 power factor.
In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.
WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB
Pls mail me utility & Dg related question with answer
Why HT 11 KV Slipring Motors are connected in star ?
how we can calculate power factor in single phase & three phase ?thank u
what is a types of short circuit and what is a types of distance protection tests
what is the difference between torque induced and torque load?compare them with respect to dc motor?
How line capacitance & line inductance varies with increase in height tower.
PLEASE TELL ME ABOUT QUESTION PAPER OF UPCL ENTERENCE EXAM.
WHAT IS THE PARTIAL DISCHARGE TEST?
1hp= how much rpm
how we calculate the short circuit capacity of the busbar in LV & HT?
Merits & Demarits of Oil circuit & Air circuit breakers ?
How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx