What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?
1619What 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 26411)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 2773sir,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 12372Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.
1678Post New Electrical Engineering Questions
HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U
How does a transformer contribute towards the widespread popularity of ac system over dc?
i've iocl interview.. if you know the interview process please give me information..
define the non synchoronism of synchoronous machine in general g or m??
anyone knows service engineer in chennai for EDM SPARKING MACHINE.CHMER PULSE CD 60 M.pL GIVE ANY CONTACT NOS
Explain about 3 phase motor fault current calculation with examples?
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
what happens when series resonance occurs?
Define open loop control system.
DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.
What the formula for calculating no.of earthings & size of earth strip for 100mX90m shop.
What is the cut-off rate?
What’s electric traction?
Why field rheostat is kept in minimum position while armature rheostat at maximum position?
can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??