whta is difference between contactor and breaker.

6 Answers  

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3. What is Impedance Voltage in Transformer?

16 Answers   KESC, L&T, Torrent Power,

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if 20 hp motor starts directly stars and contenious run . what will be the effect.

11 Answers   HP, Ohsung Electronics,

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some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

0 Answers  

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how terminal voltage increases when load is capacitive (leading pf load)? (explain practically what is happening, not using phasor diagram

1 Answers  

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How will polarity test of Dy5 Transformer ?

0 Answers  

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how i calculate the size in mm of the LT 4 core cable for 100 HP inductive motor pump

1 Answers  

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Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

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Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 Answers  

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why motor burns ?

5 Answers  

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How to calculate impedance volt in Transformer?

0 Answers  

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I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

0 Answers  

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