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Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?
TCL,
3 17100How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If yes.how......n.if thesame motor used what`s it`s sideeefect.
2370how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
Tyco,
2323how to select automotive wire by mathematical equation with given current, vlotage and resistance
Tyco,
2294Acually generator neutral is earthed,if suppose cable from neutral is brokened under theearth ,what will happen.
L&T,
2 6943A.V.R maintains the voltage of a generator when it is in island mode but when the generator is synchronised with grid it maintenance the P.F,how it happens please any body explain it in detail.
TATA,
2 6043why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?
2136Post New Electrical Engineering Questions
How to check the Bushings of the transformer?
Anybody know how schematic diagram for reverse power relay? RPR for generator protection
How we can calculate the Amps for the cable Ex:- For 1sqmm wire how many amps we can draw (calculation)
In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is
is it possible to turn on the single phase star delta on delay timer using 24 v dc ?
how to compute kAIC? with formulas...
Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar
how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.
can we find the inductance of a induction motor?
How Calculet The UPS AH In Load
Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????
During underground cabling in landscape area what did we cover the cable with to prevent the electric shock & protect the cable?
What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.
what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?
why fractional pitch winding generally used in alternators?
