Interested to Buy Any Domain ? << Click Here >> for more details...
why we are testing cables with DC supply not with AC supply?
- 9 Answers
- 30725 Views
- Aurobindo, DEWA, L&T, I also Faced
- E-Mail Answers
Answer Posted / hashir
Insulation tests, known as megger tests, are carried out using DC because AC introduces reactance, mainly capacitive (AC resistance), into the readings.
The high voltage DC, usually twice the operating voltage, will break down any defective resistance in the insulation.
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..
How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?
how to maintain frenquncy with syncronising sub-station for distribution
For a spring controlled governer the relation F = ar+b (F is the controlling force, r is the radius of rotation a and b are constants), indicates that the governer is
i applied for the ap transco please forward the freqventley asked QA
how to calculate the lightning arrester conductor @ no of earth pits required
high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...
what is physical distance of isolator to VCB in 33/11kv sub stations
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
What are the functions of different probes used in cro?
How can maintain our H.T. motors used in cement plant. please send me procedure.
Write the current equation in series RLC circuits.
kindly send me 11KV MV motor differential protection procedure by primary injection method.
What is the difference between multimeter
Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used
