why we don't use air circuit breaker on H T line in place of
vacuum circuit breaker ?
Answers were Sorted based on User's Feedback
Answer / sayyid ahamed pm
at the time of opening of cb more current and high voltages are causes to produce high arc due to air and moister are help to produce fire
Is This Answer Correct ? | 7 Yes | 0 No |
vaciuum c.b is advanced.
At the moment arc, and the keying is more effective.
air c.b is more expensive.
Is This Answer Correct ? | 3 Yes | 3 No |
which supply is used in traction system
Neutral CT for 45MVA 132/11 KV YNd11 Transformer. NCT REF CLASS-PS or 5P20 with 20VA burden which is suitable.
WHAT IS THE THUMB RULE FOR DECIDING THE CURRENT RATING OF COPPER WIRES SAY 2.5/4/6/10 MM SQUARE SIZES??
14 Answers Dubai Group, Saudi Delta Groups, Savitha Electricals,
why motor rating in KW?
According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.
What is negative phase sequence?
7 Answers Hindalco, Universal Associate,
why we use battery source for current transformer polarity testing?
How silicon gel sucks moisture in the transformer, its have any small exaust fan behind silicon gel.
How would your past experience translate into success in this job?
in india per day how much power is generated including all power station
Give two basic sprrd control scheme of DC shunt motor.
why we use 3 phase in our country?..why no 4,5 or 2??