Answer / rajashekar

There is no separate formula for calculating no load
current, It depends upon it internal losses like Wearing &
Tearing, Bearing condition and IR losses etc.

Secondly, We can see that, In Breaker circuit only NO is
used for Closing, Opening and Triping Purpose, where as
with out NC circuit it wouldnt be complete. To trip the
motor we should break the NC element.
In India normally 110 Vdc for breaker and 230 Vac supply
for Starter control wiring.

What will happen if i connect the delta winding motor to star input.

1 Answers  

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Mention what are the different colors on wires indicates?

0 Answers  

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what will happen if u run induction motor beyond its rated speed

13 Answers   Adani, BARC, Bescom,

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in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

0 Answers   apspdcl,

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Write the formula for Fault MVA, Fault current, Base MVA.

2 Answers  

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voltmeter kya hota hy ?

2 Answers  

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can we measure +,-.zero sequence current ....? if so how can ???

2 Answers   NLC,

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How regulator control the fan speed?

4 Answers  

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Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

0 Answers  

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Explain UPS

1 Answers   Powerica,

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how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

0 Answers   SRES,

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what is voltage rise and voltage drop?

8 Answers   HP, jetking, TCS,

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