Answer / ajeet kumar singh

it is the forward voltage at which the current through the junction started to increased rapidly

Answer / naresh

The knee point is defined as the point at which an increase
of applied voltage of 10% results in an increase in
magnetizing current of 50%.

can we transmit power with out cable if it is possible how it is possible.

2 Answers  

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if the diameter of a conductor is 'R' then what is the distance between two bundle conductor in a phase?

1 Answers   NTPC,

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In case of delta/delta transformer if the one phase is blown out then what will be secondary line voltage ?

4 Answers  

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how to select a circuit breaker?

24 Answers   ABB, BARC, TCS,

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How can we parallel two transformer with vector gorup YNd11 and YNd1?How is connection two transformer GT?

3 Answers  

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I have 30KW Motor Starter Panel, System voltage is 480V, So i have to convert voltage 480 to 220V to give the contactor coil. How i can select control transformer, Which rating transformer i can use this panel, what is the procedure, please tell me.

2 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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what is meant by switch fuse unit ?

3 Answers   Thermal Powertech Corporation India Ltd TPCIL,

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in a induction motor if we put capacitor across it will the power factor of the motor will improve? if yes how

6 Answers   Reliance,

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Types of 132KV and 222 KV protection.

1 Answers  

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Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

0 Answers   FEWA, HMK,

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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

0 Answers   Power World,

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