what is the difference between CT and CVT in EHV Sub Stations

Question Posted / nageswara rao

4 Answers
26240 Views
Hofincons, Lanco, TATA, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is the difference between CT and CVT in EHV Sub Stations..

Answer / p krishna teja

A current transformer (CT) is used for measurement of
electric currents.Current transformers are commonly used in
metering and protective relays in the electrical power
industry.

A capacitor voltage transformer (CVT), or capacitance
coupled voltage transformer (CCVT) is a transformer used in
power systems to step down extra high voltage signals and
provide a low voltage signal, for measurement or to operate
a protective relay. In its most basic form the device
consists of three parts: two capacitors across which the
transmission line signal is split, an inductive element to
tune the device to the line frequency, and a transformer to
isolate and further step down the voltage for the
instrumentation or protective relay.

Is This Answer Correct ?

42 Yes

2 No

what is the difference between CT and CVT in EHV Sub Stations..

Answer / saadsms

CT:
This means current transformer converts current from high
values to the value of 5 amps of output circuits for the
operation of measurement and warning devices, or any need of
this type...

CVT:
This means that there are two transformers together in the
same device is used for high voltage circuits
One-volt transformer and the other current transformer.
In the same container (one device).

Is This Answer Correct ?

1 Yes

12 No

what is the difference between CT and CVT in EHV Sub Stations..

Answer / sandeep

CT is used for measuring and control of Currents and CVT is used for Measuring of Voltages in 400kv switch yard.

Is This Answer Correct ?

4 Yes

19 No

what is the difference between CT and CVT in EHV Sub Stations..

Answer / limbian

CT - used for protection
CVT - for Metering

Is This Answer Correct ?

2 Yes

18 No

Post New Answer

More Electrical Engineering Interview Questions

0 Answers Maples,

How to calculate the size of the cable? for exp i want to use the load of 10HP

4 Answers

1 HT service how many LT Service

1 Answers

HOW isolation transformer works.

2 Answers

what is meant by leading or lagging power factor?like in capacitor power factor is leading and in inductor power factor is lagging

4 Answers

what is the formula to calculate the fault level current for any substation?

2 Answers

Can any body explain the operation system of MVWS(May be related to water and fire hydraunt system)?

2 Answers TATA,

What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

0 Answers

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WHAT WILL BE THE EFFECT IN PRESENT POWER SYSTEM IF WE CHANGE THE FREQUENCY AS YOU SUGGEST ?

32 Answers L&T, MCL,

What is the difference between acs 550 & acs 850

0 Answers Madhucon,

do we need NGR panel when the output of the genset is LV but after that it is step up to 22 kv. condition is 12 genset 400v are operating in parallel.

1 Answers

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.

0 Answers

For more Electrical Engineering Interview Questions Click Here