what are the main parts of UPS what is the function of that?
Answer Posted / asit
unintrupted power supply. its operated as thyrister ckt.
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My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
in dc series motor if field wdg is shorted then
What does quality factor depend on in resonance?
Dry type transformers
why we are using earth pit in sub stations.?
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.
Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?
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What is the difference between security constraint unit commitment and security constraint optimal power flow?
what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.
what is the relationship between phase & neutral
what is protection class current transformer.
What are the limitations of Kirchoff's laws?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
What is the disadventage of gland earthing(power cable) if any. ?