why 6.6,11,22,33,66kv? what basis they have considered?5 3742
HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?5 11408
Wat is da difference b/w neutral earthing and unearthed system?2 2915
what is residual current....1 1591
what happen "when Dyn11 is parallel operation with Dyn1"?9 9619
Earth Resistivity2 2987
on what priciple transformer works on?5 2885
RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//5 26998
what are the type of motors3 2525
I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.
how dc ct works?3 3425
what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so3 3739
any idea abt REVERSE METERING concept.........?
size of condotory fron voltage level
We normally make oil soak pits under Transformers. Oil from soak pit goes to collection pit. We provide granules/pebbles under transformers. My question is weather granules/ pebbles to be filled in soak pit or not? if yes upto what level?
defination of transistor controlled series capacitor
how much allowable resistance that can be difference in motor all coils?
Please explain, how to test vector group of tranformer(Delta y1) . Thank
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
what is solkor relay and which condition it will act?
explain the mode of metal iranafer in Co,welding
in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses? the second question is-generation is depends on LV winding? or LV winding design for generation voltage?
I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.
what is electrical machines
why we not used 11kva as a direct our electrnics component.
how much excitation voltage required to generate 1mw power?
Why is better to have a minimum ceiling voltage of 250% than 160%?