Answer Posted / kaushal
Single phase supply to motor can't produce continuously
rotating magnetic field as either N or S
pole would be present at a time. so there will not be force
of repulsion as well as attraction This is not sufficient
to drive the rotor from one end. So a capacitor
is employed to shift the phase & to create rotating magnetic
field.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?
11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?
WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load
what is x'mer ,isolation x'mer & yltra-isolation x'mer?????
what are the safety measures of induction motor?
how to calculate the earth mat design in 132 kv substation yard ????
What is the automatic voltage regulator with servomotor?
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
Difference between control junction box (cjb) and power junction box(pjb)?
please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.
what is the function of Moulded case circuit breaker, why it is called Moulded?
How we can change the direction of rotation of Induction motor? Prove it using graphical
george phenomenon of synchronous machine