What is the main cause of magnetism?
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DIFFERENCE BETWEEN GROUND AND NEUTRAL?
how to calculate capacitor rating for an induction transformer ex.for 12 mva furnace calculate capacitor rating
what are effects of harmonics in the three phase a.c power system ?
what is meant by carrier aided trip protection in transmission line
what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.
Can u explain : how capacitor act when the supply is given is a.c and d.c. I know that when d.c supply is given then the capacitor charges and becomes open circuited. But please say about when a.c is given. I have seen that when a.c supply is given ,it charges and discharges, But when we plug in capacitor to our daily supply and take it out ,then we join those wires spark will appear,which seems charge is present ,but when a.c is given it should charge and discharge
CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??
what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?
what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?
1)What are the proccedure of initial charge of 100AH lead Acid battery bank 2)whether discharge test is reqd ? if it is rqd why, how 3)what are the discharge critieria (volt/cell or sp.gravity/cell
how we can calculate earth fault current?
can any tell me why slope 40% and 80% is calculated in differential protection?