How i can identify the 220V and 110V power supply equipment? No tag number.

4 Answers  

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Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

0 Answers  

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how speed control of induction motor?

4 Answers   DVC,

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what is the pressure of vacuum circuit breaker

2 Answers  

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IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

0 Answers  

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When we are working on transformer(132\11KV). we are going to isolate the transformer from both HV side and LV side. then we are applying grounding on both side. My question is that we required to isolate the VT which is still connected from secondary side.?

1 Answers  

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Which is the largest hydropower station in the world?

0 Answers  

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what is the RESTART INHIBIT protection?

1 Answers   Thermax,

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In aircraft,why we use 400 htz equipment.and use common earthing

1 Answers  

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what is phase angle ? and also tells me why my phase-phase voltages are 390 rather then my single phase voltages are 221 and 223 respectivly?

2 Answers  

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How Id and Ires are calculated in siprotech 7ut612 and abb trsfmr differential relay.what is the formula

1 Answers  

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How halogen & merquery lamp works.

0 Answers  

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