What happens if you give supply to the rotor of three phase
induction motor?
Answer Posted / arun patil
ROTOR OFF SLIP RING MOTOR START ROTATING OPPOSITE
DIRECTTION OF ROTETING MAGNECTIC FIELD WHILE STATOR WINDING
SHORT CIRCUITED AS ROTATING MAGNECTIC FIED WILLL SET UP ON ROTOR
| Is This Answer Correct ? | 7 Yes | 1 No |
Post New Answer View All Answers
why effective resistance should be more than static resistance in transmission line?
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
Is it possible to use a S1 duty class motor for crane application (S4)? If not, why?
what are the breakdown voltage rating of mini- curcuit'transfarmer!
While testing a ZCT what parameters have to check or measure?
How to select a contactor? How many types of contactors are available
How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???
Disadventage of cable-gland earthing if any ?
I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)
how we can set the IDMT relay.
what does a string of resistors in a series will do?
what is load despatching
how to check avr of dg set of 125kva
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
how many single tension hardware are required on a double circuit transmission tower?