knee point voltage

Hi,

Knee point volatge is checked in Current Transformers. Beyond this volatge core gets saturated.

Best Wishes,

N.Suresh

hai,

thanks for your reply

regards,

kp

lots of devices have knee point, which device do you want to know?

Hi Keerhti

The knee point voltage is that point on the magnetizing curve where an increase of 10% in the flux density (voltage) causes an increase of 50% in the magnetizing force (current). It is a prime indicator of the characteristic of a particular current transformer (CT) because the voltage level reflects the structural integrity of the CT. Any decrease in the knee-point voltage can indicate a deterioration in the core material (delamination, crack, etc.) or a defect in the winding (inter-turn shorting). Any incipient defect in a CT can therefore be detected by conducting a trend analysis on the knee-point voltages measured over a period of time. To support the reliability of trend analysis, the measurement of knee-point voltage must be consistently accurate.

Kind regards

Roman

Hi, keerthi!

Look it up.

Just type "knee point voltage" into a search engine's address line; and YOU'LL GET YOUR ANSWER IN EASY TO UNDERSTAND TERMS IMMEDIATELY. Then, if you have additional questions, ask.

Sorry to be impatient with you. However, you just asked a lot of people to do something for you that you could --apparently-- have done for yourself. If you have some physical restriction that prevents you from checking this out on your own, please breifly explain why you are asking others to do it for you so grouches like me will not get on your case unfairly.

Mark

keerthi; it also relates to the zener diode conduction curves. perry