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In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?
2 9496Post New Electrical Engineering Questions
What is ramp signal?
how to calculate the lightning arrester conductor @ no of earth pits required
what is the clear formula to calculate cable size for a load
Explain the functioning of diode?
our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
What is domestic transformer? Draw the connection of domestic transformer.
what is reactive power?, why its measured in VA ? is it transient behavior of system?
why generator efficiency is more in swinburnes test?
What is servo lock in CNC how they work and if any parameter for them in CNC machine
i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result
surge tank, hrc fuse, earthing transformer, firm power objective type
how can i find cable size from current rating?
What is deference between MCB & MCCB & ISOLATOR
In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes
