How over load relay works.1 2340
What is spike & surge.2 3081
what is diffrent of RCCB & MCCB6 10440
Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?2 2966
How stabilizer works1 2425
WHY STABILIZER SHOULD USED2 2645
Tell me harmfull effects of over voltage,under voltage,spike,surge,transient & noise.1 3778
Which type of material used for fuse wire & solder wire.13 54721
How would u describe the function of a generator & motor?5 5717
what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?1045
Define magnetic centre in a motor?1 12027
For which purpose the temp. rise test of transformer is conducted?2 4152
regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?1095
any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.
Is there chopping current in resistive circuit
What is the need for a controller?
why r we using shell transformer for low voltage
If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.
standard earthing rating for power line..
what is KA rating and how can we choose switchgears on applications
How Calculet The UPS AH In Load
The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?
How to design the NGR Resistance
What is the effect of positive feedback on stability of the system?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
state the disadvantages of carbon filament???
how is positive, negative, zero sequence is happen.. how is effect on 3 phase system
temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%