Answer / kannu

current and voltage transformers both are based principle
of as transformers.it used for step down the voltage and
current to measure the electrical energy .
There is a ratio to identity the CT and PT.

pt ratio :100/1 etc.....
ct ratio :100/5 etc....

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

0 Answers  

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hw the cable size can be calculated when we have watss, volts, pf, i need the forula

2 Answers  

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What is Single Phasing fault???(not single-phase fault)

6 Answers   ABB,

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Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

1 Answers   Hexaware,

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If I have a LT panel 3ph, 415V, 50Hz which demand load-600kw, how we can calculate its body earth strip size.

1 Answers  

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DISCUSS THE SHAFT MOUNTED D.C. GENERATOR ,BASED ON EXCITATION SYSTEM IN ELECTRICAL SYSTRM

2 Answers  

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how to find under ground cable fault ??? if our cable size is 95*4 then what will load capacity with far mull

2 Answers   Imdad,

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What is rms value wher it is used??????????

1 Answers  

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How much DC or AC Current that a Human Body withstand for Electrical Shocks?

4 Answers   Suzlon,

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What is notching in dc machine?

0 Answers  

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On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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when a cunductor is being disconnected from live cct, still it showing charged, if its checked by line tester?

8 Answers   GEB,

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