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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 3750When 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 5293When 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 8833What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints?
HAL,
2 5257In three pin socket normally three pin in between three pins earthing point is more thickness why?
6 13994the 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 5744Post New Electrical Engineering Questions
how many current required for hypo test
can anyone send me some sample question regarding power grid corp
what is Anti-pumping?
what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation
can we synchronize star system generators with delta system generators?
11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??
If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.
How does a transformer contribute towards the widespread popularity of ac system over dc?
I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
why we used ZNO in Lightning arrester.
why lightning arrestor are made in two stack of insulator but why not cvt
In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.
what kn of disc is used in 33kv,132kv,220kv,400kv,800kv transmission line
Draw the DOL starter and star delta starter drawing?
