WHY 6.6KV MOTORS ARE STAR CONNECTED AND WHY NOT DELTA CONNECTED,
Answer Posted / sunil kumar sinha
^.^ KV motors are generally star connected because
insulation of winding of motor and interturn insulation is
much less because voltage across each turn in star winding
is much less (root three times) than the windings of delta
connections.
If 6.6 KV delta motor is to be manufactured the insulation
level will be much higher between turns as well as winding
as it will experience voltage level of 11 KV STAR MOTOR.
tHE SIZE OF MOTOR WILL BE BIGGER BECAUSE OF HIGH INSULATION
THICKNESS IN THE WINDING AND IT WILL BE COSTLY ALSO.
| Is This Answer Correct ? | 24 Yes | 7 No |
Post New Answer View All Answers
What is star-delta transformer?
Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?
how to design the heater in temperature control unit to heat 50KL of water?
How earthing/grounding done in aeroplanes and ships.
what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.
for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance
how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
A cotter joint is generally used to transmit
xfhnchncv?
DC transmission
How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?
how the testing of protection CT Testing done through Primary injection kit please describe in detail procedure...
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
what types of cable used in underground coal mining?