Dear Respected sir how to test ABB REX521 protection relay
by relay tester.
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in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?
How we can find the regulation of transformer?
is it possible to minimize the copper loss?
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What are the difference between C-Curve and D-Curve for MCB's.
17 Answers ABB, DLF, Essar, GK companies, Nissi Engineering Solution,
What phase difference between p and s winding of transformer
we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
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