why does chattering take place in ac contactors? can it be avoided & what care does the manufacturer take to eliminate this phenomenon????
10 55940what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?
1 5214why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??
5 10289which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?
1982How maesure earth neutral value & how much maximum value value required in between earth & neutral.
2075THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS
7 11081In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
2003Post New Electrical Engineering Questions
if we give 60 hz single phase supply to the transformer used in europe , than what will happen
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor
how we can calculate the efficiency of a diesel generator ?
explain working principle of earth leakage relay
How to calculate phase to phase difference ?
how many load we can take for lighting
hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji
If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??
3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw
If short circuit ratio is high is it bad or good for a machine then tell the reason...
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
how to measure dc earth leakage current?
what is the condition for YnD11
How to megger test 11 kV cable and the acceptance IR value