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Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.
2139Hi My Dear All Friends, There is one question it is widely used in Power Project's High Voltage Engineering. Question- What is the diffrence between Earth fault and Back up Earth Fault....???? . . . . . . Have A Good Day
1 3901During Load testing of battery charger with temporary AC Generator .When reach 70% load Generator immediately shutdown .we could not able to Recognize ,what is exactly problem .Please kindly clarify us
1 3111When we are working on transformer(132\11KV). we are going to isolate the transformer from both HV side and LV side. then we are applying grounding on both side. My question is that we required to isolate the VT which is still connected from secondary side.?
1 3972i am iti student i have project to do. that IS 100MW 220\33KV SUBSTATION I WANT TO KNOW HOW TO START, LIKE CALCULATION, WHAT RATING OF CT,CVT, PT, ISOLATOR LIGHTING ARRESTER WAVE TRAP CIRCUIT BREAKER IN 22OKV SIDE, ALSO TO WARDS 33KV SIDE PLS HELP ME WITH THIS, THIS MY LIFE NOW, I KNOW AUTOCAD, I LIKE TO KNOW HOW TO CALCULATE ALL THE THINGS
3 5229CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?
3 5268What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)
1862Post New Electrical Engineering Questions
bitumar
Write a note on Treatment for electric shock.
what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?
what is induction furnance? how many phase supply given io its coil for 15 or 20 ton furnance?
what are the different kind of cables used for transmissions?
What is a diode?
Can RCD's used to protect the VVVF drive if not why.
model question paper for supervisor trainee
what is droop control?
what is difference between 5A and 100A CT constructional wise and operation?
How Self works in DG set
what is the difference between changer, converter and transformer?
What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?
what is destructive and non-destructive testing of welding
What is the capacitance values of 132,220,400 & 765 kV current transformer
