what is the working process
of over & under voltage
relay.
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what is ATS?and its function or operation in power system with its layout.
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?
We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?
what is the working principle of contactor and conditions of normal open and normal close on it?
how we explain parallel paths armature winding?
Why we are designed only 11Kv and 6.6Kv Alternators, not 33Kv Alternators and Power Transmission side we are designed only 220kv, 120kv, 66kv, 33kv, 11kv, and 440volts, not 20kv, 50kv, 100kv.
what is a vector protection in transformer
why vector group is ued
Where r use in Dc motor in power plant?
DIFFERENCE B/W NEUTRAL AND EARTH?
how to calculate the neautral earthing conductor size for a 500kva dg set.
how much mininmum length required to conduct a DC Hipot Test on 33kV AC Cable with 45kV DC? Is it 20meter or Less then 20?
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