Product Profile of Current Transformer Tester

Megger is the manufacturer of current transformer tester, mctt-10. The product provides a variable voltage output and digital instrumentation for measuring the excitation voltage and excitation current resulting as the voltage applied to the ct under test is increased. As soon as the ct under test begins to saturate, a large increase in current will be detected for a small increase in voltage. The salient feature of the current transformer tester:

• Performs saturation and ratio tests on cts using the voltage-comparison method

• Tests bushing cts mounted inside transformers or switchgear

• Eliminates the need for large primary injection test systems to test ct saturation and ratio

• Saturation and ratio tests performed without changing test lead connections

• Overload and short-circuit protection