In protection core of a C.T. why Knee pont voltage is
greater than SLV and in metering its viceversa?

Answer Posted / nur.asidik

knee point voltage should higher than required Vkp by relay to avoid CT saturated when fault happen

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is the difference between circular wdg & ractangular wdg?

1659


How does the slip regulator works as a startor

1593


how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

2851


what is the grounding Calculation formula? spouse i want to provide grounding to 3phase 18kw motor or i want to provide ground to 3phase 10kva dry type transformere or you give me any exemple...... Thanks.

1579


IF TVM OF TRANSFORMER SHOWS POWER FACTOR ON 33 KV SIDE AS 0.97 LAGGING AND ON 132 KV SIDE IS 0.75 LEADING.IS THIS CORRECT.WHERE IS PROBLEM.

1990






1.what is the reason for transformer and lightning arrester blast in 33kv system

2695


What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

2090


What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

2429


Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

1280


how harmonics generated in induction furnance? how minimise it?

1623


At what speed an electric car can run with 2 HP motor of weighing 400 kg?

1448


sir i am apearing for nic exam.i dont know exam pattern.can you please send me some model papers

1594


Should power factor be low or high?

799


What are the two segments of nyquist contour.

741


WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

1732