Answer / k.prakashchandra

Arcing between electrodes through the charge

why all transformer colour is same?

3 Answers   OPTCL,

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what do you mean by PF correction. A motor is rated at 15 kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is improved to 0.98 by adding capacitors at the bus. calculate the current drawn by motor under full load condition before and after pf correction

5 Answers  

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explain working of differential protection for a transformer?

1 Answers   BARC,

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3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

0 Answers  

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what is differentila pilot supervision in the incomer control panel in the power station?

0 Answers  

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cb used in railway applications is?

2 Answers   NTPC,

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Can we perform parallel operation of two transformers when one transformer on load?

3 Answers  

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How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.

0 Answers  

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What voltage is used in Directional earth fault relay? and why?

5 Answers   L&T,

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URGENT PLEASE//////////A WORK SHOP IS HAVING A 100 KVA TRANSFORMER 11KV/415 VOLTS, AND THE CONNECTED LOAD OF THE WORK SHOP IS 80 KW WITH INDUCTIVE LOADS, LIGHTING LOADS,ETC., HOW MANY EARTH ELECTRODES ARE NEEDED AND WHAT IS THE EARTH RESISTANCE OF EACH EARTH ELECTRODE AND COMBINED EARTH RESISTANCE in normal soil. AT 11 KV SIDE AND AT LT SIDE. HOW TO CALCULATE.

1 Answers  

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If we want the fan to consume less electricity at low speed, what do we have to do?

1 Answers  

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How would you calculate power loss in a resistor?

0 Answers  

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