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As we know,charged clouds(from which lightning stroke initiates)may be charged with either +ve charge or -ve charge. Now say one cluster of cloude is fully charged with +ve charge & another cluster is fully charged with -ve charge. In the sky these two cluster of charged clouds have come in such a distance that, if they come clouser by some few yeards then the lightning discharge will take place between these two cluster of clouds. Under such a situation an Aircraft came inbetween. what happend??
5 7553In electrostatic precipitator why positive terminal of tranformer rectifier unit is grounded?
2 12930I have tow 200 KVA UPS, both are in parallel mode.My question is that, both are running on battery when power fail, if one of them fail (Eg rectifire fails or some other reason), at thet time reverse power will come to faild ups if it comes then it will harm to failed ups or not? if not then how it protects to faied ups????????????????
1 5411In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.
2310what is the difference between the 94 lockout relay and 86 lock out relay. I have noticed that the 94 lockout relay is activated when the distance realy is activated and 86 is activated when the 87T differential is activated. but why can't the same lockouts be used for both the protection schemes
ABB,
10 72361What is the difference between AMF panel and DG Synchronization panel? please define the working of both the panels?
3 35265Post New Electrical Engineering Questions
in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.
why the difference arise between HT reading & LT reading (submeters fixed in complexes, apartments etc)if the power factos exceed from 0.9 to 1 can the ht meter reads fast?
Why does the rotor rotate?
What is dynamo?How it works and what is the function of dynamo in a DG.
new 90kw motor installed so how I purchased cable ,fuse,etc please give me technic for cable selected why always capacitor delta connection
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers
what is 3rd Harmonics? how it is generated in alternator
the winding of Generator and Motor is star or in delta ? and why
71ohm,111ohm,95ohm,179ohm in calculate the total ohm in series circuit
how to find motors H.P. whout any rating? (only give you a motor and multimeter)
we specify current in case of feeder but in case of distributor voltage, why?
what is the ckt diagram of a tubelight and is it the simplest ckt of electrical engineering and also the component?
What happen when change order of CT in GIS feeder?
