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Why star point of star connected motor is not grounded? Why alternator is operated at lagging power factor?
TCL,
3 17130How 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,
2315Acually generator neutral is earthed,if suppose cable from neutral is brokened under theearth ,what will happen.
L&T,
2 6975A.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 6073why 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?
2152Post New Electrical Engineering Questions
what is the use of permanent magnet generator in exciter
The height to which the liquid in a tank to be maintained for a certain constant velocity?
If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.
Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ? 1.Dropout Fuse 2.Striker Fuse 3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)
HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.
what is Anti-pumping?
what is difference between window type and wound type transformers?where we will use window type and wound type transformers?
How much no load current of synchronous motor
hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?
Why power factor should not be in leading (capacitive) mode of any load.
i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?
Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?
How to operate a ac chilar plant?
Explain the process of commutation in a dc machine.
HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?
