why phase to phase voltage are 290 rather then 440?
What conditions are required for transformer to operate at low frequencies ?
What is the Full form of Rccb,MCCB,
11 Answers Marriott, Maruti Suzuki, MCB, PCC, RCCB, Torrent Pharma,
when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?
what is difference between the buscoupler and bus raiser?
2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?
Q. calculate the value of the resistor to be connected in series with a 100W; 230V lamp so that the wattage of the lamp is reduced to 35W
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
Why VCB is required and ACB is also require? what is the BDV of Trafo of 11/33 KV
Earth leakage relay basic knowledge principle
why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?
What is mean by earthed & unearthed cable? Voltage grade of 1.9/3.3 kV(E), 3.3/3.3 kV(UE), 3.8/6.6 kV(E)what it indicates??
In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?