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how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
OPS,
2227what are the different sizes of U.G. cable & where these cabl;es are used according to voltage ..
HPCL,
2118We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks
2068Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..
IOCL,
2123what is meant by oil filled power & distrubution transformer ? if anybody know the link of detail about above transformers means plz send it i have interview on this week ? plz help me
3 5248Post New Electrical Engineering Questions
what is the saturation point of crgo lamination.
Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?
why we use 630mm single core cable for transformer secondary side and why two neutral cable
How the PF control while running DG set with load
I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.
If short circuit ratio is high is it bad or good for a machine then tell the reason...
what is basic difference betmeen normal & flame proof motor??
What is dynamo?How it works and what is the function of dynamo in a DG.
there are cam operated switches - why we call cam operated , What is cam ?
Define availability (operational)?
What are factors to be considered while we selecting the Core Balance Current Transformer for Earth fault protection
whats the existence of reactive power and when it arises?
gas turbine genrator reactances
do we use neutral grounding for resistive balanced load? if we use what happen?
how to find the torque of the single phase synchronous motor by doing an experiment
