why PT transformer primary r the grounded?
Answers were Sorted based on User's Feedback
Answer / raveendra nath
normally Voltage Transformers are designed on the basis of
insulation grading to minimise the cost.
(i.e Voltage level decreses towards neutral, So while
designing, Insulation level will decrease when going
towards neutral )
So, transformer nuetral must be at earth to keep it at zero
potential and to avoid any flashover under fault conditions.
Is This Answer Correct ? | 2 Yes | 4 No |
Answer / akhil.goyalanager1985
BECAUSE PT ARE CONNECTED IN PARALLEL WITH THE LINE
Is This Answer Correct ? | 0 Yes | 7 No |
should dc supply will give the transformer to build up the voltage level
How will u calculate wire size according to current rating?
6 MVA transformer secondary is rated for 725V at no load. The incommer ACB is rated at 690 V, 3200 Amp. Would there be any effect on performance of ACB due to lower voltage rating?
What is the relation between the Peripheral speed(N) , no.of poles(P) and diameter(D) of a cylindrical rotor alternator ?
Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.
Why converter duty transformer neutrals are not earthed...i am still not sure if this question is also correct...Please email at ranjan120482@gmail.com
different between highvoltage & lowvoltage source
Why size of HT cable is less then LT cable inspite of the fact that voltage is higher in HT cable?
what type of earthing is done on hilly rocks.
how to calculate the capacity of the AC motor
what meant by Locked Rotor Current ?
why ct is connected at bushing of transformer ??????????