Answer Posted / d.ramesh classes
efficiency of transformer depends on core loss and copper loss. core loss depends mainly on voltage and copper loss depends on current passing through the winding. so basically total loss i.e. efficiency depends on voltage and current that's why we rate transformer in KVA.
by D.RAMESH CLASSES
| Is This Answer Correct ? | 12 Yes | 0 No |
Post New Answer View All Answers
How to determine alternating current frequency?
how to calculate earth fault relay current and CBCT ratio
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
Wind mill
tan delta equation test on alternators
What is nichols chart?
Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.
what are the tests comes under the type test, what tests comes under routine tests.
why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?
54 Comments Alok and Bhanu play the following min-max game. Given the expression N = 38 + X*(Y – Z) where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be?
how to calculate the earth fault current
How do you select the pickup value of the relay?
why electronic instruments is more favorable than electrical?