Why we apply only reduced voltage to the alternator while
conducting slip test ? also the current increases to a
larger value with reduced voltage itself Why ?
Answer Posted / sarbajeet jena
Since the excitation emf is zero, heavy currents would be drawn by the armature if connected to the rated voltage supply. Also, if the voltage is large, the reluctancetorque due to saliency may bring the rotor in synchronism with the rotating flux (ie.the synchronous machine will run as a reluctance motor)
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
what is POTT and PUTT explain?
Name two low frequency oscillators?
Advantages/Disadvantages of earthing of neutral bus on MSB instead of separate neutral earthing for transformer/DG sets feeding to MSB
what is effect of leading power facter on the system and billing
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
where solid grounding and where grounding through ngr done and why?
WHAT IS MOBILE SUB-STATION? & REALLY BENEFIT IN INDIA
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
What are the classifications of oscillators?
May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?
Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks
I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate
How to calculate Temp from Resister from PT100 equation,
What is the function of NER and NET?
Is there any type of starter for DC motor other than two point,Three point and Four point starters?