Answer / sanjeev

mesuring amps

Answer / mayur

why should star point is earthed in power transformer

Answer / s k deo

For Internal Fault Protection of Transformer by operation
of Differencial Relay.

why causes the burnt of AC Electrical Motor ?

9 Answers  

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We have 2 11kv/433v transformers for 2saperate acb for mv panels and 1 bus coupler acb. Suppose I’ll close bus coupler what will happen or it will be share the load. Please suggestion and any modification required.

1 Answers  

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explain the existence of reactive power in electrical engg?when it generates?

1 Answers  

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how electronic energy meter works?

2 Answers  

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The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?

1 Answers   BSNL,

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what type of earthing is done on hilly rocks.

4 Answers  

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Calculate the demand in KVA for a three phase 440V power source drawing 1100A current

5 Answers  

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Send me Model Question paper for the post Scientific Assistant in NPCIL

0 Answers  

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Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.

1 Answers  

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Which is the best protection in case of shortcircut fuses or mccb ?

2 Answers  

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WHAT IS DGA TEST FOR THE TRANSFORMERS.

3 Answers   ABB,

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why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415V(terminal voltage)

4 Answers  

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