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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 3686When 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 5140When 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 8614What are the solutions for avioding sulfide formation at bimetalic (Copper &Aluminium)overhead joints?
HAL,
2 5143In three pin socket normally three pin in between three pins earthing point is more thickness why?
6 13790the 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 5623Post New Electrical Engineering Questions
how we can calculate 2 phase welding transformer rating or total power?
what will happen if there is a voltage leakage or current leakage in an electrical train
If we have 11 kv RYB Phase single core cable near about. Then wht effect and losses
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
how balanced in star delta connection ?
A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?
The shot circuit in any winding of transformer result? Explain
How many types of electric motors are there?
how many types are their in switchyard or substation(like D,I TYPE), what is differant between them
wat is the first thing dat is needed, 2 lay a cable in some area??
Define step response?
state basic meaning of 'INDUSTIAL AUTOMATION'?
Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control
Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?
Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode
