in 11kv generators the neutral point is connected to earth via earth coil while in the 33 / 11 kv transformer the neutral point is connected to earth via earth resistor why? 

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Why voltages are 11kv 33kv why not others?

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it is used to measure the potial difference between two point?

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A ii kv 1200 A Breaker combination fixed in a cubicle. How many ampere Fuse is required? If fuse is not using, Why?

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

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what is the formula for building wiring to get the main breaker.

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

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what is the permissible bend in the LT& HT CABLES.

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sir, in a industry present pf is 0.54 pf 25hp power is there its want improve 0.9 pf. which suitable capacity capacitor is suitable please inform me.

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what are eddy currents

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Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

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How we can change the direction of rotation of Induction motor? Prove it using graphical

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