last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?
1 3022When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?
2 4017When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?
6 6901What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints?
HAL,
2 4171In three pin socket normally three pin in between three pins earthing point is more thickness why?
6 11955the distance from my office to d.g is aprox 400mtrs and voltage drops ibn my office near about 40 volt what should i do p[ls suggest.
4 4440Post New Electrical Engineering Questions
Distinguish between nuclear power station with thermal power station for initial cost, starting period, cleanliness, and transportation of fuel
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
What are the two major types of control system?
how the works electronic energy meter?
why the rotor current becomes in steady state during high slip region? please verify with equations.
How to calculate no of EARTH PIT? Describe the formula as per IS standard?
What are the types of class b amplifier?
In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?
what is LSR?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
How can we calculate ac current from the given DC current when AC voltage is given?
Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..
Dear sir, I have completed DECE in the year 1995. I have work experience in HT and LT LINE more than five years. Now i am doing BE in EEE from rajasthan university. After completion of BE,can i apply "C" Licence sir? Please reply.
Why generation voltage in thermal power plant is between 11kv to 33kv?
how to calculate the change over time for star delta starter for different KW motor?
