What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?
1620What is the working principle of CFL & T5 tube light & 40W tube light with electronic ballast?
Remi,
3494Is there any Flood lighting system which produces more light (More power consumption 1000W,400W etc.,), white light and restart immediately after power restoration ?
1 26431)What are the proccedure of initial charge of 100AH lead Acid battery bank 2)whether discharge test is reqd ? if it is rqd why, how 3)what are the discharge critieria (volt/cell or sp.gravity/cell
1 2775sir,i am swati. i am goin to gv jspl exam on 21st nov'10. iwant previous year question paper. plz help me out. my emailid is swatisinha.dav@gmail.com
1 2916why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.
4 12377Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
1679Post New Electrical Engineering Questions
redundant connection in contactor?
pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..
Why the earth to phase voltage is high 250 compare to other two phases
What is the operating principle of turbo-generator.
How we calculate DC inducation moter Amp? Sir pls give me formula......
Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?
in india per day how much power is generated including all power station
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.
Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks
Define filter?
Why neutral is not used in three phases dol starter
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)
if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?
