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I need a 33/690V Dry type transformer.How to select IP class for this transformer.This will be an outdoor transformer located in a highly polluted environment.
3 5604How Id and Ires are calculated in siprotech 7ut612 and abb trsfmr differential relay.what is the formula
1 3744what happen if any one phase of a slipring induction rotor winding is open?is it start or won't?
2 6665some ac motor's direction get change dueto ghanging input to the ac drives.(say ryb to rby). but some motor direction remains the same when phase sequence is changed fromdive side. can anybody guide me?
1 5113There is one 40MVA oil cooled transformer (yet to commission), filled with 95% oil and we are trying to fill 5% Nytrogen in that transformer so that there should not be any foreign component inside. But even though there is no leakage, nytrogen is not withstanding inside transformer, within a day or two pressure guage is showing 0. Why is it soooo? Pls reply.
1 3738In our domestic single phase line if you don't have a ground connection (earthing)how will you separately use earth in a specific power supply board.
1 3678Post New Electrical Engineering Questions
what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.
what is meant by IGBT how they differ from tyristor ?
please send previous exams question papers
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?
can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.
Why squirrel cage motor can only use with low starting loads ?
what are the values of VRY,VYB,VBR,Vry,Vyb,Vbr,Vrn,Vyn,Vbn for Magenetic balance test of 100 KVA and 63 KVA Distribution transformer
what is a reactive power? what is the relation with power factor?
i am in need of AC SYNCHRONUS MOTOR 30KW. ANY ONE KNOWS THE MANUFACTURER OF SAME. ALSO MOSFET AC CONVERTER 20KVA CONT.OUTPUT.
What are the different methodes for calculating the short circuit Current?
please give some hindalco placement papers for written exam
what is thermal resistance of PVC Cable.
please send me latest & previous years question papers for IOCL Technical level questions
