why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%1037
what is real and reactive power?2 2562
why we choose 50 or 60 hertz not other value for the power system?4 5196
what is the relation between the size of the machine and the frequency? (when the frequency increases the size of machine will increase,why?)2 3057
can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?1071
what is trip circuit supervision relay? How does it work in switchgear?6 34717
why dc is used in control circuit for mv & hv switchgear instead of ac
what is diff btw electric,magnetic & eletromagnetic field
1.how many earth pits are required for 1000 k.w plant include substion , transformer ? 2. how many earth pits are required for 500kva generator.what is formula to calcute?
Which are resistive loads & which one are inductive loads : Refrigerator, Split air conditioner, ceiling fans, well pump, fluoresecent bulbs, T.V, CRT Monitors, Adsl Routers, C.P.U, Printers, Deep Freezers, Speakers, DVD Players, Microwave oven etc. ? Output Power for these Appliances Would be same like this : P = V * A * P.F Or would be changed ? thanks
what is the function of Moulded case circuit breaker, why it is called Moulded?
What difference between ref protection and differential protection ?
Why High voltage are generate noise ?
What is shunt voltage and u v voltage witch one best
What is the difference between AC and DC injection methods for rotor earth fault protection
what is the sludge current
How Can you do Maintenance of ACB of 2000Amperes
What is the Minimum winding resistance of motors ( small & big)? referance range
Why Utility Distribution System in India is mainly at 11 kV? Why not Utility go for 33 kV?
All tape of electrical questions Answers tape of motor transformer e.o.t crane