1)Why electric shock is feel ?? n in a Electric Train why
we didnt feel that ?
2)What is the reason for transformer Noise ??
3)What is relation b/w Transmission Lines & Communication
Lines ?
4)Which material is used for making Transformer oil & How u
measure its dielectric strength & Name the test ?
Answer Posted / shuvankar sikdar
Our body is a zero potential.If we touch a live wire using
our body grounded,we get shock because current flows from
higher potential to lower potential(here ground)through our
body.
In electric train we dont gets shock because in train our
bodies are not grounded also the train itself grounded
through the wheels.In case of any fault,the fault current
flows through the train body and the wheels to the ground.
| Is This Answer Correct ? | 24 Yes | 6 No |
Post New Answer View All Answers
how are reversing the direction of rotation of dc motor
Define demand factor?
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
What is Anemometer used to measure?
in conventional fan regulators how the current varies with speed?
We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.
Why in power plant projects we see DOL starting method used for motors upto 160 kW instead of star delta method
how we can calcultae the short circuit level for bus bar
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.
how to calculate maximum current
what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????
Where can I get CPWD electrical specifications & Shedule of rates? Please help me
Is it advantages of having star-delta vfd than normal star vfd , if yes why?