Answer Posted / vinoth a.r
when transformer get magnetized,the magnetized core get
expanding and contraction.in one power cycle two times get
expand and two time get contraction.only little dimension.
this effect called electrostriction.
| Is This Answer Correct ? | 2 Yes | 1 No |
Post New Answer View All Answers
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?
what does mean of RCT and STR in diffrential CT?
what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks
IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.
Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.
What are the main faults of DC generators?
it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.
What is the classification of hydro projects based on installed capacity?
what is difference between line differential and transformer differential?
what & how to check the lightning arrester
What is the general system requirement of alternator?
what is the function and use of cable differential protection relay?
ht side line to earth voltage
what is meant by surge? what we called for high currents?
sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....