Explain difference between aluminium coductor & copper
coductor.
Answer Posted / sandeep jangam
copper is having higher conductivity,cost,density.
aliminium is opposite of above
Is This Answer Correct ? | 5 Yes | 1 No |
Post New Answer View All Answers
what is the operating time for LBB and how does the LBB relay realise whether cb is opened or not?
What is touch potential and step potential?
explain with diagram how to protect transformers and substations from over current with help of CT's?
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
Is it advantages of having star-delta vfd than normal star vfd , if yes why?
HOW TO CALCULATE THE HEAT AND LOAD OF LT-SUBSTATION WHICH CONTAINS 2*1MVA TRANSFORMERS,LT-SWITCH BOARD,MLDB,ACB,BUSBAR,ETC,......?
Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.
What is the difference between PLC and Embeded system
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n)?
What is the difference between line drop and percentage line drop?
Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?
What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?