why we use star and delta connection?why we donot give the
supply directly?
Answer Posted / suresh ram
10 hp or Above motor take starting current 6-7 times to normal current. To reduce current used star few times the after moto will be run delta the give be full efficiency.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
What is the difference between vector surge relay (78) and Pole slip relay (98G)
Why we used 690V in ACS 800 drives.Why dont use standard voltage like 415v or 1.1Kv
Alternator rotor earth fault relay circuit
why dc is used in control circuits for MV & LV switchgeras instead of ac
what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?
where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz
How to address the servo drive for motor
what is the thumb rule for determination resistance of resistor?
what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please
iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.
what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?
Is it advantages of having star-delta vfd than normal star vfd , if yes why?
armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?
why ten delta testing is carried out on power transformer
what are symmetrical and non symmetrical components in electrical installation.