why the desirable efficiency for a motor is 60%, but in case of transformer, it is above 90%?
1 3185how to calculate Amp, 2 different Amp of batteries? Example: No. of Batteries = 2 Battery voltage = 12V 1st Battery rating = 17AH 2nd battery rating = 30AH between parallel connection then output volt 12v Amp?
2 4445For 6600/433 distribution transformer we apply secondary side 433 volts how much voltage in primary side.
2 3972whenewher three phase supply is given to induction motors revolving/rotating field is created & rotor rotates.When the three phase supply is given to three phase transformer then revolving,/rotating field is created or not? if not why?
1 2710how could we findout the lightning arrester failed or not in live circuit? Is there any instrument to measure the high voltage at the time of sky lighting?
1 3222Post New Electrical Engineering Questions
why transmission is only 3 phase and not 2 or 4 or poly phases
WHY RATING OF VCB NOT LESS THAN 630A
What are the uses of stepper motor?
Why back emf used for a dc motor? Highlight its significance.
hi can anyone pls tell me the eee interview core questions asked in l&t
what is meant by vector group of a transformer? How can it be derived?
How to calculate impedance volt in Transformer?
What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?
orifice sizing how done, checking & selection
Difference between control junction box (cjb) and power junction box(pjb)?
what are factors to be consider to design a HT & LT motor?
What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?
What is PQA???Applications........
What do you mean by per capita requirement of electrical energy in india
What are the three constants associated with a steady state error?