what is the difference between potential Transformers and
capacitive voltage transfoemers and where it is used?

Answer Posted / amit khamesra

The purpose of VT and CVT in EHV system is same ie. to step
down the EHV to low voltage for measurement and protection
purpose. The extra function which CVT performs is to trap
the high voltage signals from the line which are used for
PLCC communication.

Is This Answer Correct ?    19 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1398


what is RFCT and Insulgard Relay & It's function?

1692


What do you mean by the zone of protection?

614


how the CT and PT is connected in the circuit during testing of transformer explain with diagram

1508


What is kirchoff ’s current law (kcl)?

625






In aerodynamic turbines which element is NOT there a.stator b.compressor c. Fuel intake system d.fans

1631


what is difference between 9kv 5ka surge arrester and 9kv 10ka surge arrester.

1400


How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

1705


Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??

1382


What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

1620


What is the estimated total hydropower potential of india?

621


need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

1303


How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

1628


Grid fault level [KA]?

2197


what is mean by dry frequency

1932