Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?

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SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

2 Answers  

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what is the form factor of DC voltage

5 Answers  

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why semicondoctor use in HT cable?

1 Answers  

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What is the voltage b/w nutral and earth

11 Answers   Mind Space,

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i have seen a picture of a power plant. in that pic. i saw chimney like giant structure which were spreading smoke like something...i want to know is it chimney or cooling towers, as my friends use to say.

2 Answers  

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What can make the the overloads operate when a star delta three phase motor starts?

1 Answers  

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What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.

2 Answers   L&T, TCS,

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while running ,synchronous generator is being turned off.what will happen to the current flow??

1 Answers  

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how the direction of rotation in a dc shunt motor could be reversed?

2 Answers  

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what is the difference between potential transformer and capacitive voltage transformer?

1 Answers  

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What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

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