Measurement
The 505 Transformer Analyzer measures current transformer (CT) admittance, CT ratio, CT primary-to-secondary phase angle and the voltage, current and phase angle of the service. With the ‘Burden CT/PT Option’, it determines the CT secondary burden capability, the regulation of the potential transformer (PT) and its secondary burden capability and provides for CT core demagnetization.
Testing
The CT Admittance Test feature provides the capability of testing a CT with or without secondary current flow. The CT Ratio Test feature provides for measuring the CT ratio as an ‘Actual’ ratio or a ‘Best Fit’ ratio. CT or PT Burden Tests can be performed using two methods. The first method allows the user to add an individual burden to the secondary. The second method allows the user to add a complete sequence of burdens to the secondary.