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FADHEL
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Join Date: Sep 2012
Posts: 58

Voltage Factor for CVT

09/15/2012 3:13 AM

The value for voltage factor depending on earth system. Why rely on determining the type of earthing sysem
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lyn
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#1

Re: VOLTAGE FACTOR FOR CVT

09/15/2012 9:02 AM

How to Search the Internet

Current and Voltage Transformers
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TonyS
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#2

Re: Voltage Factor for CVT

09/15/2012 1:59 PM

STOP SHOUTING ! ! ! !

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electricalexpert65
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#3

Re: Voltage Factor for CVT

09/17/2012 9:31 AM

i) If the system is solidly earthed, then there could be power frequency overvoltage to the tune of 1.5 times the highest system voltage, during a single-line-to-earth fault, depending upon the fault loop impedance.

ii) If the system is impedance earthed, then during a single-line-to-earth fault, the overvoltage could be 1.9 times the HSV.

If you want to know the calculations, pl. enrol for our training programme on earthing.
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