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How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?
1917what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.
DVC,
3238725KW Three DG set Synchronised but DG no-1 power showing 750KW DG n0-2 power showing 500KW DG no-03 showing 500KW. DG is Shynchronised but why this different power showing?
3 5849WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.
2 4620What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?
2 9827why the active power flow of some line is increased when the active power of out is cut ?
TAFE,
2052i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?
1 3628A 60W,250V bulb when connected to a 230V supply will it give more light or less or will be give normal light?
3 6802Post New Electrical Engineering Questions
Leakage current,un balance current which relay using for high voltage transmission?
Why negative feedback is preferred in the control system?
why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points
Define closed loop control system.
generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?
how to maintain frenquncy with syncronising sub-station for distribution
what is difference between speed mode and torque mode in motor?? explain in simple words please.
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)
what is the Pickup/drop off ratio in BCPU relays
What are two contours of nichols chart?
How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.
define digital electronic
what happen when we add mentos in cold drink?& why?
