in india single phase is 230v and three phase is 440v
but in other countries single phase is 110v and three phase is 380v why..?
Answer Posted / shahbaz shaikh
first reason is in india we have 50 Hz frequency and in other countries frequency is 60 Hz
second reason is the material avalability and atmospheric condition
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?
why connecting surge unit in contactor coil
i want to know how to determine that a surge arrester work properly in 11kv system. and how to test a 12kv surge arrester
Why the power factor improvement is so important in industrial loads
state the disadvantages of carbon filament???
What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?
what is kondo syatem in eletrical traction
. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?
sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....
Why colled 440V to 3-phase supply.
Is MEN and RCD related to each other ?? IF yes then how??
will 1050kva DG set withstand for back charge of 16MVA transformer
IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?
how can i get the formula to find out the cable size if i know the load of main fuse protection.
In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)