Answer Posted / mohideen

that is due to the form factor of a pure sine wave is 1.1.
form factor is given by the expression form factor=(rms/average)

why there using acb enclosure in big buildings

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How stabilizer works??

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what are the main faults that occur in stabilizers? How they corrected and resolved ? Types of stabilizers ?

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Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.

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what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please

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what is the difference between rectifier and converter and commudator?

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Why in ESP Positive earthed

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what is the purpose of silicon dropper used in battery charger?

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What is the maximum operating temperature for a thermoplastic insulated cable?

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

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How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

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Pl.brief me any electrical major fault you have rectified.

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what is earth-fault?when it occurs? to check where it occurs what type of test should we do?

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

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