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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 3692When 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 5161When 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 8630What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints?
HAL,
2 5160In three pin socket normally three pin in between three pins earthing point is more thickness why?
6 13808the 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 5637Post New Electrical Engineering Questions
difference between the applicability of nortons and thevenin theorem
how to select proper cable for ct wiring so that drop within the limit.
what will be the min and max voltage flow from neutral to earth?
How to test Alternator stability test for REF relay
what is the working principle of a DG Set, Alternator, & exiter
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
I have 2 KW electric water heater.I am gonna use it in controlling water temp.so I needed to increase or decrease the heating capacity.is there any electrical-electronic circuit for varying the resistance & so current?
what is the efficiency of thyristor
why all the feeders are designed in a particular manner ... is there any reason for that???
which types of relay used in acb and vcb?
why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!
Zone of protection and tripping scheme of arc protection relay.
advantages and disadvantages of inverse definite minimum time RELAY
Why do we avoid electrical conduits in floors at apartments?
How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.
