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B.JEYACHANDRAN
Associate

Join Date: Apr 2009
Location: Muscat Oman
Posts: 27

CVT & VT

08/10/2012 10:05 AM

Dear sir,

which is economical in switch yard CVT or VT

thank you,

With Regards,

B.Jeyachandran
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RAMConsult
Guru
Engineering Fields - Power Engineering - New Member

Join Date: May 2007
Location: NYC metropolitan area.
Posts: 3230
Good Answers: 444
#1

Re: CVT & VT

08/10/2012 12:23 PM

Since you have provided very general information here is a very general answer.

1. Determine the relaying and metering burden in the control room.

2. Get quotes from suppliers of both types.

3. Analyze the space requirements in your switch yard for both types.

4. Get quotes from your contractors for the installation of both types.

5. Compare the overall costs of both types.

6. Decide and post your results here to share with others.

__________________
 “Tell me and I forget. Teach me and I remember. Involve me and I learn.” Ben Franklin.
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electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#2

Re: CVT & VT

08/22/2012 10:26 AM

For voltages less than 110kV, the electromagnetic Voltage Transformers are economical. For 132kV & above the insulation costs of electromagnetic VTs are uneconomical and hence CVTs are used at these voltages.
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