star delta connection used in reduce the starting current
at 3 times . how its reduce the current please explian .
Answer Posted / m.varadarajan
when higher hp motor starts with high current, to reduce
the starting current we are using this connection,it will
reduce 1/root3 times of full load current, after motor
reaches of the rated speed, delta connection applied.this
time full voltage applied to winding and motor run smoothly.
| Is This Answer Correct ? | 17 Yes | 23 No |
Post New Answer View All Answers
What is your acheivements
How to megger test 11 kV cable and the acceptance IR value
we use capister for power factor. when we use capaciter in dg circuit than defect dg. can we use capaciter bank for dg circuit
Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?
What is meant by derating factor?
Purpose of providing neutral isolation panel for parallel operation of diesel generator
what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer
if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value
Explain the propagation of harmonics in the network and influence of phase angle of harmonics.
what is model question rrb junior engineer electrical gr.II
Air refrigeration cycle works on the
What are the protection required for Transformer, motor, Line, Generator, capacitor, that all i have to refer which standard?(Like Transformer detail IS 2026)
which fault is severe and why?between lll fault and lllg fault which fault is severe and y?
what is frequency response?
How to select a contactor? How many types of contactors are available