in case of induction motor when overload condition or any short ckt. why stator winding burn not to be rotor winding
2 4070what is photo voltic cell,& what are the materials associated with that?and any spcifications like volts/cm etc?
1644hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"
1643in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.
1 3269What is power distribution criteria for converting single phase unbalanced residential load to 3 phase star connected balance system. Does total KW converted to 3 Phase. Means Divided by root 3.
1890Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case
1 3334Post New Electrical Engineering Questions
What is thresh hold value of current?
why do we carry out winding resistance test?
what type of motor used to move a 1 ton gate? and relate ratings with load.
State the frequency for rc phase shift oscillator?
distribution is maximum done by a)radial b)network c) parallel d)b & c
what are the principles of a booster converter?
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water
i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value
what is meant by power and distribution transformer ?
how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?
ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture
How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).
HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?
Battery is a voltage source? give one example of current source and why?
