Checking device and checking method of accuracy of capacitor voltage transformer
A technology for voltage transformers and calibration devices, which is applied in the direction of measuring devices, instruments, and measurement of electrical variables, can solve the problem that there is no very effective method for the accuracy calibration of capacitive voltage transformers, and achieve light weight and improved accuracy. Sexuality and effectiveness, small size effect
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[0031] The following will combine Figure 1 ~ Figure 4 The accuracy verification device and verification method of the capacitive voltage transformer of the present invention will be described in further detail.
[0032] See figure 1 , Capacitive voltage transformer accuracy verification device includes a voltage regulator booster 1, a capacitive voltage proportional standard device 2, an error measuring device 3, and a capacitive voltage transformer 4 under test.
[0033] The voltage regulating booster 1 provides voltage for the capacitive voltage proportional standard 2 and the tested capacitive voltage transformer 4, and the error measuring device 3 compares the standard voltage of the capacitive voltage proportional standard 2 and the tested capacitive voltage The secondary test voltage of the voltage transformer 4 is measured and compared, so as to measure the ratio difference and the angle difference of the tested capacitive voltage transformer 4, for judging whether the accu...
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