Testing of ct operated meters, Electrical Engineering

Testing of CT Operated Meters

The subsequent tests should be carried out for CT operated meters:

i) Ratio test through primary injection kit,

ii) Polarity test,

iii) Continuity test of primary and secondary windings,

iv) Insulation resistance test, and

v)  Terminal markings as per name plate details.

It should be remembered that CT Secondary terminals should not be remain open. For CT and PT operated meters, it is preferable to use a Test Terminal Block (TTB). The TTB gives the facilities of shorting CT secondaries for testing reasons without any interruption to the consumer. The CT leads should be directly linked to the meter, although PT supply to the meter should be linked through the fuses of proper rating. For eliminate the possibility of tampering along with the fuses, the fuses should be given with protective cover and properly sealed.

Posted Date: 2/6/2013 8:04:17 AM | Location : United States







Related Discussions:- Testing of ct operated meters, Assignment Help, Ask Question on Testing of ct operated meters, Get Answer, Expert's Help, Testing of ct operated meters Discussions

Write discussion on Testing of ct operated meters
Your posts are moderated
Related Questions
Q. Illustrate the Simplex Transmission? Simplex Transmission Data in a simplex channel is always one way. Simplex channels aren't often used as it is not possible to send ba

aliasing with message spectrum and two frequency shifted replica and remedies to combat aliasing

What is programmable interrupt controller? The Programmable interrupt controller is used when several I/O devices transfer datausing interrupt and they are connected to the sam

Testing for Continuity : You may have observed sometimes that when all the connections in the appliance as well as the plug are made properly the appliance may still not work. Thi

write a short note on Scale

Q. Illustrate working of Direct-coupled Amplifiers? Direct-coupled Amplifiers : The following figure shows a direct-coupled amplifier consisting of two stages. A dc voltage i

Q. Explain the External Data Bus? External Data Bus: A bus which connects a computer to peripheral devices. 8088 microprocessor has 16-bit registers, 16-bit internal data bus i


Explain Memory Mapped I/O Scheme. Memory Mapped I/O Scheme: In such scheme there is only one address space. These address space is defined as all possible addresses which m

why voltages are in multiple in 11