What Is Function of Ct Pt Unit?
Ct Refers to Current Transformer and Pt Refers to Potential Transformer. They Are Used to Measure Current and Voltage in High Voltage Circuits Respectively...
.
Then, what are the functions of CT and PT in a substation?
Current transformer is an instrument transformer used in substation for measurement and protection purposes. CT used for the measurement of AC current by taking the samples of higher currents of the system. The reduced samples are in accurate proportion with the actual high current of the system.
Additionally, what is PT ratio? Potential Transformer ratio is the ratio of the primary rated voltage of the PT divided by the secondary rated voltage of the PT. Often, the primary rated voltage of the PT might be different from the system voltage at which the PT is applied.
Also to know, what is the difference between CT and PT?
CT is used for current measurement and PT is used for voltage measurement. While a PT has large number of turns on primary and fewer turns in secondary winding. e to get reduced voltage in secondary and V is proportional to Number of turns). And here primary winding is connected across the supply.
Where CT and PT are used?
CT & PT are called the instrument transformer, because those are used to assist the measuring instruments for the measurement of electrical parameters like current, voltage, frequency, power factor, active power(MW), reactive power(MVAR) etc. of high voltage system.
