Answer / ramesh kumar k

Mainly the current Transformer works on the principle that

Primary mmf = secondary mmf
i.e
Primary AmpereTurns(AT) = Secondary AT

so if the secondary is Open circuited, there is no current
in the Secondary hence secondary AT=0. In that case there
is no opposing mmf in the secondary to neutralize the
primary mmf. So the CT secondary will induce heavy
voltages and winding of the secondary will burn...

simply to understand guess what happends if we pump water
into a tank without opening valves for water to go out..

Answer / gulshan goyal

the mmf developed in the primary side will depend only on
load current which is highdue to which there will be high
flux in secondary also hence if we open circuit the
secondary the current present in sec will be zero,a very
high voltage will be generated which cause hazard.

As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

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explain how the power is distributed from a power plant to a consumer.explain step wise in detail

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I hv a question regarding power factor improvement just after transformer. I request you to reply me plzz. thank you sir. My friend has a small unit of fabrication. in his factory the main load is a welding machine, lathe machine, grinding machine. this load is not continuous type. now our electricity board has installed 16 KVA, 11000/433 V transformer for our factory. In the energy meter (trivector meter) at LV side of transformer, i hv seen power factor value of 0.15 only when only 3 KW load was flowing. Further electricity board has suggested to install 4 KVAR capacitor at LV side after energy meter. Now my question is that if we permanantly install and switch on 4 KVAR capacitor after energy meter, during some load on transformer and also without any load on transformer, wht will be the power factor shown in energy meter?i dont want to get any penalty by electricity board, so plz suggest me if i can permanantly install and switch on the 4 kvar capacitor or not at LV side of transformer just after energy meter? Thank you again and awaiting for ur positive reply soon.

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What is your favorite aspect of the engineering field?

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what is mean by live tank and dead tank in current transformers?

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What is Skin effect of the cable?

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