1.where in India the maximum transmission voltage is operated?
2.what the methods are used to cool down the
transformer?give the specific ratings of the transformer &
specific cooling process.
3.how zero & negative sequence reactances are formed in a
rotating machine when fault occur in the system?
Answer Posted / dr. mohd. arif khan
2. the different cooling processes are oil forced(OF), air
natural(AN), OFAN, OFAF, ONAN and ONAF. for higher rating
like 5MVA transformer the cooling is ONAF type.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
While testing LA mast,What are the parameter limits ?
What is Faraday's law
From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?
How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
what is lrs tank water resistance.
How to measure the Harmonic Distortion of UPS ie THD?
What is a dominant pole?
Define noise?
What is the lockout relay
what are safety measures in /control in diesal engine/ explain them?
Is there any type of starter for DC motor other than two point,Three point and Four point starters?
what is errection pcbs?
Can 4pole (3 phase+neautral )RCCB proper functioning in only 3 phase load (no neautral, no Earth) ?
Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.