4
exceeds 200V, the transformer with two accuracy levels higher than the tested voltage
transformer can be used for transformation, and then the induced voltage divider can be
used for voltage division to measure the error of the tested induced voltage divider.
2. Measuring circuit for voltage proportional standard
This is the line often used by the transformer ratio bridge. At this time, the voltage
ratio has nothing to do with the load, so it has high accuracy.When calibrating the voltage
transformer calibrator, this line can be used to obtain the in-phase component value with
high accuracy, and the residual orthogonal component will be very small.
V.Precautions for use
1.The grounding of the instrument and the cabinet shall be reliable.
2.When in use, do not switch the range under full voltage, at least lower than 100V,
and then switch.
3. If the output voltage error is found to be too large, check whether the wiring is
correct, whether the fuse tube has been burned out, whether the position of the indicator
panel is accurate, find out the cause and take necessary measures before retesting.
4. In order to ensure the measurement accuracy, the inductive voltage divider shall
not be loaded when in use.
5. The induction voltage divider is a high-precision equipment. When verifying the
