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Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?
TCL,
3 17131How 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.
2377how 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,
2328how to select automotive wire by mathematical equation with given current, vlotage and resistance
Tyco,
2316Acually generator neutral is earthed,if suppose cable from neutral is brokened under theearth ,what will happen.
L&T,
2 6980A.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 6074why 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?
2153Post New Electrical Engineering Questions
what maximum range of star & delta in hp or kw ?
why it is so called as xlpe(cross linked poly ethyline) cable?
what is the use of power transformer in GSS.
What is the purpose of using busbar mounting fuse?
what is mppt (maximum power point tracking ) and how they used in solar power generation ??? what are the main components used in mppt?????
What is the importance of earthing?
what is the function of gss in the dg set.
boiler is running in rankine cycle and deisel generator is....?
If oil and air can withstand a high MeV when used as an insulator in a transformer, what are the values of how high for each material?
how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?
what is formula to cal cute earth pit numbers and size of earth strip used in earthing?
A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.
What are the basic elements used for modeling mechanical translational system?
What is the abbreviation of NGT panel
