Voltage Transformer
5 - 3
VT Ratio
Use the VTRatio test card to measure a voltage transformer’s ratio with injection
on the VT’s primary side with up to 2kV from AC OUTPUT.
It measures amplitude and phase angle of the voltage (at V1AC) and the current
on the transformer’s secondary side, and calculates the actual ratio and the
deviation from the nominal ratio.
Figure 2:
Setup for testing ratio