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what voltage to be select in megger for insulation resistance testing to L.V , H.T cables,motors and transfomer?and ohms valve should be giga ohms only or what?
1 155912.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?
5 7320how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor
2 7793How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?
2044can i used 400A SFU (for the use of PA fan motor),if my BUSBAR rating is only 315A?????answer me quickly as possible.......thanks
1 4092what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........
2 6008suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?
ABB,
2 6195EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
1895Post New Electrical Engineering Questions
hi frnz,can somebody give me any project work? i am a 2nd year student & interested in practical works...plz give me some projects
How to assume answer to electrical questions
What consists of 2 or more thermocouples to be connented series?
The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.
Whether the vacuum contactor requires Short circuit protection?If No,why?
What is the tension required for the 25000 CFM AHU belt
what are the advantages disadvantages of connecting high voltage block( 1:1 transformers) transformers between the turbo generators and busbars.
How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.
What Should be the value of Vector Surge angle at Tripping and how to calculate it?
how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????
What is meant by reverse polarity and how it can be fixed?
derive DC RMS value for half wave rectifier?
I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id:upendrakrishna20@gmail.com,plz send me ,or send any other rrb papers plzzzzzzzzzzzzzzzzzz
hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /
hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible
