Answer / mohamed mustafa

P=V*I
IF THE VOLTAGE VARIES CURRENT VARIES
SO THE SIZE AND INSULATION OF THE MACHINE CHANGES

Capacitor is load free component but why ampere meter shows current when capacitor bank breaker close?

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How to calculate PF capactors for a connected load?

2 Answers   FD, Power World,

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what are problems caused by the pdu in rack server

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why capacitor using the induction motor?

6 Answers   Kirloskar,

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how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

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IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.

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Differenc between the resistance and resisters?

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

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why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?

1 Answers  

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what is the function of potential transformer in s/s

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Kindly give the brief explanations for checking 12.5 kvar 440V, 25 KVAR 440V, 12.5KVAR 690V, 25 KVAR 690V capacitors microfarad values. what is the microfarad values for the above four type of capacitors, and give the formula explanations briefly. I know F-50HZ, voltage, and capacitor.

1 Answers  

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