Answer Posted / k.prakashchandra
Comprehensive test before commissioning and at least once in
a year preferably soon after rainy season.BDV to be measured
at least once in a quarter.Filtering is to be done only if
necessary.Generally fresh oil does not require comprehensive
test.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What will happen if we introduce negative feedback to a control system that uses a positive feedback?
1. what is usage for power factor in industries?? 2.why we need to monitor power factor??
WHAT IS MOBILE SUB-STATION? & REALLY BENEFIT IN INDIA
What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.
what is the difference between capacitive and resistive voltage divider?
If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.
can i use the six sigma method which is used in management area, in state estimation of power systems?
In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?
What are the classifications of oscillators?
wat is meant by PX class in ct?
In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?
i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
why we use ac supply as 415 volts instead of 415 v why we cant apply 230 v for dc
how to find out 3 phase complex power in per unit in unbalanced system?
ROC converges if poles and zeros lie inside a. Origion b. Z=1