why we used star delta starter for above 5hp motors

Question Posted / mohdgous26

Answers were Sorted based on User's Feedback

why we used star delta starter for above 5hp motors..

Answer / vinod

IN STAR CONNECTION THE VOLTAGE IS REDUCED TO SQRT(3),SO
THERE IS REDUCTION IN VOLTAGE & PROVIDES SAFE STARTING

Is This Answer Correct ?

10 Yes

1 No

why we used star delta starter for above 5hp motors..

Answer / raj

iT ALSO DEPENDS ON THE SYSTEM FAULT LEVEL OTHERWISE EVERY
ONE USING DOL STARTER.IF THE FAULT LEVEL IS WELL SUFFICIENT
U CAN USE DOL STARTER.

Is This Answer Correct ?

0 Yes

0 No

More Electrical Engineering Interview Questions

neutral,ground & earth different b/w

what are the causes for strip heater failure ?

what is breathing?

what is FS cable?? Difference between FS and FRLS??

state the disadvantages of carbon filament???

WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

what is buffer resistance starter.?.What is the working principle and where it is used..?

where used impendence relay?

Why using synchronising methed in DG's sets?

what is the function of LBB relay

Can I use 1 phase power supply to run 3 phase motor? If yes, how?

why not feeling shock while touching rotor shaft of induction motor during running condition? during running condition emf induced in rotor.

For more Electrical Engineering Interview Questions Click Here