Interested to Buy Any Domain ? << Click Here >> for more details...
What is the need for checking knee point voltage for CT's?
- 1 Answers
- 4648 Views
- I also Faced
- E-Mail Answers
Answer Posted / iamdon
CT is designed for operation in linear region.In this
region only, current changes acoording to turn ratio.Knee
point on magnetisation curve of core is the point at which
core begins to saturates.Once the core gets saturated, it
losses the transformation propery.It will carry same
secondary current for all primary current.This maloperation
is of no use as far as CT action is concerned.
Knee point sets the upper limits of B so as not to exceed
this limit during operation.Thus it ensures the intended
operation of CT.
Author:arbelectbit@yahoo.com
| Is This Answer Correct ? | 12 Yes | 0 No |
Post New Answer View All Answers
how can calculate 1kva generator running time in 1 liter keroscene
Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.
Why a Permanent Magnet Generator has higher frequency as compared to frequency of main alternator?
Can u tell me design of switch yard
how to calculate short circuit current for the busbar
what is x'mer ,isolation x'mer & yltra-isolation x'mer?????
what r the checklist while installing a 380 kva DG set
Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?
At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
What is the purpose of stablization resistor in high impedance bus bar protection
What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB
How Load Factor, Demand Factor, Diversity Factor etc best applied in designing an electrical circuit? Is it allowed to consider these factors in each and every panel in an electrical distribution system? Can any body suggest a good book for reference?
Difference between On Line capacitor and Station Type capacitor.
Explain what are inter-poles and why they are required in a dc machine.
WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.
