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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?
2040Whether should be the oil level in OCTC transfomer? It should be upto winding immersed completely or should be upto tap changer s/w? How it will affect the performance of the transformer. Rating may be 33KVA
1897iam completed my DEEE in eillm university. can i get the c licence in tamilnadu its possible or not
1 3953why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?
2854What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
ABB,
3858What is genrally the % Impedance of a Dg set? How can we calculate Earthing conductor size for a DG set?
4079What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer
ABB,
2438What is the basis for selecting Vk/2 or Vk/4 for REF and Differential protection of Transformer and What is the significance of magnetising current
2450Post New Electrical Engineering Questions
What are the various kind of cables used for transmission?
what is dry and wet frequency withstand voltage? why & where it is used??
I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com
what are the things that can cause a three phase motor to crawl?
How can we connect additional batteries to three phase ups? What are parameters we have to check when connecting?
For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?
PIU how does work?
how to calculate the loss tangent of electrical cables
one electromagnet is called
Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?
Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
Draw torque - speed curve and load curve of induction motor? mark operating point ?
what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero
what are the tests comes under the type test, what tests comes under routine tests.
What are the protection required for Transformer, motor, Line, Generator, capacitor, that all i have to refer which standard?(Like Transformer detail IS 2026)
