Answer Posted / parthsharathi
cbct is core balance current transformer it for earthfault .
sum of all phases zero it ok, if any difference . So trip bkr
| Is This Answer Correct ? | 10 Yes | 3 No |
Post New Answer View All Answers
How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........
A Question Like A Wire Is Wound Whose Resistance Is Some 132. 44647 Ohms. If A Voltage Of 30 mv, 296 Ma Current Is Applied To It What Is The Resistance.
what is the saturation point of crgo lamination.
please send me the L&T Emb. sys. placement papers and entire details of pattren
what is Fault level? why it is calculated? how will u decide same for our plant?
Explain marx circuit.
where was current transformer protection units used and why??
1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is
What's the difference between non break power supply and non break non short break power supply
How is the percentage impedence of a transformer fixed at design stage???
Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,
- two pumps must work with them at the same time but if the first pump start the second pump must delayed for some time to start also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it
How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point
What is the fault or needs to be done when frequency in ac drives is not changing?
How much depth n width required for laying of 1X70 Sqmm Cable in Desert???
