Device and method for calibrating valve direct current residual voltage parameter tester of zinc oxide arrester
A technology for calibrating devices and arresters, applied in measurement devices, instruments, measuring electrical variables, etc., can solve the problem of no special test device, etc., and achieve the effect of ensuring coverage and being convenient to carry.
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[0031] The present invention will be further described in detail below in conjunction with the drawings:
[0032] See figure 2 and image 3 As shown, a calibration device for a DC residual voltage parameter tester for a zinc oxide arrester valve plate of the present invention includes a standard resistance voltage divider 20, a high-voltage connection line 1, a data processing and display unit 21, and a high-voltage interface.
[0033] See figure 2 As shown, the standard resistance divider 20 includes an epoxy resin insulating cylinder 6 and a base 7. The insulating cylinder 6 is fixed on the base 7, and the insulating cylinder 6 is provided with a high-voltage arm resistor R in series. 1 , R 2 , R 3 , R 4 ,,,,, R n , High voltage arm resistance R 1 , R 2 , R 3 , R 4 ,,,,, R n Connect in series to form a high-voltage arm resistance string; high-voltage port 2 connects to high-voltage arm resistance R 1 One end, the high voltage interface 3 is connected to the high voltage arm resi...
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