what is power factor? is it good or bad for a system? what will happen if power factor increase or decrease?

4 Answers   Bhel,

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what is the use of ballast in tube

2 Answers  

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Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?

9 Answers   Indian School of Mines,

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hi i will D.E.E.E.is completed pls send rrb diploma old qustion papaer sent in my e mail. i.d.

0 Answers   IIT,

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differnce between single acting and double acting solenoid valves

0 Answers  

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i am electrical engineer i cant get job in pure electrical industry ,but i got job in instrumentation field whether there is good scope for me, as i am fresher i m not well with the industrial trends so any experienced engineer pls reply me

2 Answers  

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11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

0 Answers  

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what is package substation.how many types they have

0 Answers   ABC,

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what r the safety measures in UPS ? explain all?

0 Answers   Wipro,

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A heater capacity is 3.0 KW on 415V . if supply voltage is 380Volt . what is heater capacity on 380volt . and how calculate and give formulas . Prakash veer singh Roto power Engg.

5 Answers  

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Whot is the braking capacity for MCCB. How we select different braking capacity.

1 Answers  

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How to select batteries required for ups and the inverter if we Known load? And how AH is selected of battery?

0 Answers   Vodafone,

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