Answer / sanjay jangra

Knee point is the term comes under current transformer (CT)
It is a point in the Curve of voltage and current where if
there is 10% increment in voltage then there will be 50%
increment in current. This point shows the saturation of CT
core. For Protection CT knee point will be high as for
metering CT it will be less to save the meters.

Answer / anand

This point shows the saturation of CT
core

Answer / suresh

if appling voltage on ct secondary gradually, if 10%
increase in voltage 50% of leakage current increase in that
voltage is called knee point voltage.

Answer / raghavendran

Knee point refers to a point in the saturation curve drawn
between voltage and flux.It is drawn keeping Flux in the X
axis and Voltages in the Y axis.The Knee point falls below
saturation level.Till Knee point the Flux - Voltage relation
will be linear.After knee point,any increase in flux will
not cause proportional increase in voltages.

Answer / ravi agrawal

A point beyond which 50% increase in forced function results in 10% increase in response

cleat wiring system is used at

2 Answers  

If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

0 Answers   UltraTech,

How can we explain that what is the power factor?

5 Answers  

While testing LA mast,What are the parameter limits ?

0 Answers   TATA,

The electromagnetic torque developed is proportional to what in a D.C series motor?

0 Answers   HPCL,

what is KA rating and how can we choose switchgears on applications

0 Answers  

i have completed deee and i've (June2012-feb 2015 experience in electrical maintenance in pvt ltd company.company having HT & LT electrical power.how to apply electrical C-license ,NOW I was resigned my job,what are requirements of applying for c-license

0 Answers  

how harmonics are generated due to nonlinear load & how harmonic filters work?

1 Answers  

Maximum efficiency occurs in electrical machines is at i)Full load,ii)50% of full load,iii)Near full load,iv)None of these

1 Answers   IFFCO,

what is meant by ceiling voltage, ceiling current?? pl reply asap

4 Answers  

whay we used silica gel in Transformer

3 Answers  

how does circuit breaker works

1 Answers