why we r used DC megger insted of AC megger?
Answer Posted / k.prakashchandra
To test insulation , you build voltage across it continuously over a period ,which is possible with DC only
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what could be the RMS value and average value of a 4 phase sine wave?
What is transmittance?
When MICC cables used ?
what is meant by class 1 E in electrical power supply?
hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.
What is the principal of motor?
Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,
Whether the vacuum contactor requires Short circuit protection?If No,why?
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
what r substations?what r there work?why voltages r incresed and then reduced during distribution of power
What is a surge supressor why its is used in synchronous generators
What was your role in the silicon evaluation/product ramp? What tools did you use?
What is signal flow graph?
How to decide and select the different earthing wire size for the different types of earthing