what is the knee point voltage in current transformer
Answer Posted / chetan sharma
10 % increase in voltage gives you 50 % increase in
excitation current is called knee point voltage.
To measure this first demagnetise the CT and apply
voltage gradually from secondary keeping primary
winding open circuited. while doing this above
phenomeneo will be obsesrved.
Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Differentiate between digital phase converter and ordinary phase converter.
What is the importance of counter based plan & how is it scheduled?
what is the most permissible winding temp when we conducting a generator load test?(condition no load)
PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??
what is the synchronous timer ? and it applications.
How to back charge the Gas turbine generator
what is the need of starter in tube light and what type of starter is used in that?
What is the diff. between single compression and double compression gland
what is static frequency converter?what is the function...of sfc...?
How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.
I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
Safety of dry type transformer
How to size Air Circuit breaker (ACB)? What is the most important factors?
How I calculate the ELCB for circuit breakers?