what is the difference between CT and CVT in EHV Sub Stations
Answers were Sorted based on User's Feedback
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 |
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 |
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 formula of capacitor for 1-phase power connection.how to improve PF. Suppose I want to connect capacitor in refrigerator to reduce power consumptions.
what is the difference between line voltage meter and relays
whether the battery is voltage source or current source?
what is real , reactive and apparani power
How to calulate the NGR resistance ?
What is the difference between Earthing & grounding
what perpos use cepacitors in motars,fans,lights,and LT panal
why ht motors are connected in star?
Why do not we prefer non conventional sources of energy to conventional sources?
what is boucholz relay and the significance of it in to the transformer?
How feedback transformer works to feedback power in Slip Power Recovery System
last 5 year rrb allahabad junior engg electrial engg question paper