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

Answer Posted / karthik.j(cce)

Potential Transformer:
This Potential transformer is used upto 66kV only..
because after the ranges of voltage it's manufacturing is
difficult..

Capacitive Voltage Transformer:
This CVT is used above 66kV voltage..In this CVT, Connects
the Capacitors in series and it reduces voltages and then
that reduced amount of voltage is feed to the step down
transformer...

This CVT is connected with the Wave Trap then this is used
for communication between the substations.....

This CVT is reduces the losses and eliminates the high
frequencies..

Is This Answer Correct ?    7 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is difference between elr and R eartl realy.

1904


Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

643


What is the emf equation of a transformer?

684


Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

1623


What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1594






Formulae for calculating the transmission line losses for different voltage levels

1630


how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt

1544


what should be the acceptrd value of winding resistance for 2.5MVA transformer

1858


what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

1726


Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?

1621


Define bibo stability.

666


In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.

1307


what causes contact chatter when there is no demand on the air conditioning unit?

1623


what is excitation/

1737


Why two phase welding machine is used instead of three phase welding machine.

1394