Answer Posted / subhendu malik
CT is used for 2 type 1.measuring 2.metering it also step down transformer.it work truns ratio (2000:1)thats mail primary truns carring 2000A it s out put secondary is 1A.Its function of CT.
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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.
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