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Answer Posted / m. k. yadav
L.T. - 440V
H.T. - 11 KV to 33 KV
E.H.T.- Above 33KV
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What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR CIRCUIT BREAKER.
What is the use of oil in transformers?
Explain using drawings what is reverse PID action w.r.t PID controllers.
how to find three phase complex power in per unit and MVA?
What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side
How they LT panel busbar size choose
if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .
Write the force balance equation of ideal spring element.
anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?
From past few months I am getting lagging pf even though sufficient capacitors used in circuit. Where is the problem pls answer
what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?
if flux and load static in dc motor and supply voltage increases 20% then what happened in speed
why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?
(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)
