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why the weight of oil in transformer is specified (on the nameplate) in litres as well as kilo grams?
3 5669Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.
3765Three way plug point is there ,in that plug why we need earth pin is bigger than compare with phase and nutral pins?
IIT,
7 10394why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?
1921Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?
2128what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?
2098we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
MTN,
1877Post New Electrical Engineering Questions
What is the different types of cable & current capacity of cable
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
Draw the line diagram of diffretial relay connected to transformer?
Why is the starting current high in dc motor?
What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.
What should be current in the Primary and secondary side of 1000KVA (11KV Supply)Transformer.?
What is the previous name of Cox's Bazar
What the difference between ac and dc inductor an capacitor
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
what is reactive power?, why its measured in VA ? is it transient behavior of system?
How can we measure the residual voltage in dc machines?
Explain M Var? Which types of problem occurs when reactive power increase at the time of full load of plant and at the time of synchronize of plant?
if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?
is there any phase difference occurs while primary and secondary side mutual induction occurs?
