Ns=120f/p. what is 120?
Answer Posted / k.prakashchandra
It is N (RPM)and not Ns(RPS) which is =N/60. One south pole
and one north pole produce a cycle. So in one second f= N/60
x P/2 = NP/120. Hence N = 120f/P
| Is This Answer Correct ? | 45 Yes | 17 No |
Post New Answer View All Answers
WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF Govt Polytechnic in deee 2nd year papers
What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?
IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?
What is the need of generator relay panel
how to remover corona effect and hysteresis losses from contactor
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
Why does the rotor rotate?
sir, iam a electrical engg graduate and i want to go in automation sector and for this i have decided to do industrial training for this,plz suggest me some good institute for the same in delhi,ncr. my degree percentage is 58%, can i get job after doing training, plz help....
How to calculate cable size by using load.?? Any formula...
3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw
What’s electric traction?
How do I calculate/select Droop CT ratio for various capacity of generators?
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?