an off load but energized 11/0.4 KV, 1250 KVA T/F has a
power factor of 0.65(capacitive)..!! why is it so, though
T/F being an inductive device ??
Answers were Sorted based on User's Feedback
Answer / anand yadav
The transformer is connected to a capacitor bank or the PF
meter connections are wrong.It is not possible for a
inductive load to show leading PF.
Is This Answer Correct ? | 1 Yes | 1 No |
Dear
It is not possible. As the transformer is a inductive
device it can only lead to Lagging PF although it is idle
but there was definitely Lag PF the one possibility is that
the transformer is feeding to capacitor panel and because
it is off load so the resulting PF is Leading second thing
can happened that PF relay not working in auto made and
somebody has connected direct capacitor without calculating
the required KVAR to maintain transformer off load PF
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / doss
if its a new transformer please check the test report done by site acceptence tan delta test .its should be the capacitance high ,and dessipation factor also need to check ...
if the result is high means need to check the winding...if the tan@ reading is less than 0.05 the transformer is good condition..so check external..
Is This Answer Correct ? | 0 Yes | 0 No |
Why HT voltages are expressed in 11KV,22KV,33KV and so on? (ie in times of 11)
i have 3, 75hp motors and 10, 15 hp motors....and to run this motors continously with a generator how much rating(kva) of generator will suiteble....?
When we use 3 terminal resistor?
does frequency affects the load? if yes elaborate it.
What is electrical cable termination
What is the Diff. btw Manule Pull Station & Manule Abort Station Switches used in FM200 System??
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
When we synchronize the Generator BKR with TIE BKR then Gen BKR is hold but TIE BKR is Tripped on Non directional over current but when TIE BKR is Syn. with Gen. BKR then no fault occur so what is the problem
Why is copper a better conductor of electricity than aluminium?
what is relation between voltage and current and don't take resistance here. if we supose say when there is increase in voltage whwt happens to current?is it decrease or increase?
why alternator is used instead of dc generator and induction generator
Whai isPCC and MCC Difference?