Why primary batteries not rechargeable and secondary batteries are rechargeble??? If any one know please send me.

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How can I calculate the fault level of a transformer. 1. If fault is 3phase fault 2. If fault is 1phase fault 3. If fault is 2phase fault Dear all geniouses, can you help me by giving answer. If anybody want to send something then mail me at "msalam_shahin@yahoo.com"

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what should be the no load current of an induction motor

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all types of electrical quations

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What is the working principle of servo motor? And explain it.

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when the diameter of the core and cable is doubled, the value of capacitance ?

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what is the principal of braker

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for preparation of design note of 11 / 220 kV , 3 phase, 63 MVA transformer how can calculate or consider the iron losses and copper losses

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Why we are mention U1, V1, and W1 in primary side of transformer give technical reason

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What is the use of doing meggering for a cable

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What is ferrite affects and what is disadvantage of ferrite affects.

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why we use iron corn in transformer instead of wooden core

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