ANTI-INTERFERENCE INTEGRATED TESTING DEVICE FOR ULTRA-HIGH VOLTAGE LINE PARAMETERS

摘要

An anti-interference integrated testing device for ultra-high voltage line parameters, used for performing integrated measurement on power frequency parameters of a measured ultra-high voltage line (4). The device comprises: an inter-frequency measurement module (1), for performing digital separation of a power frequency interference signal and an inter-frequency signal and power frequency parameter calculation on a measured signal; an automatic measurement wiring switching module (2), connected to the inter-frequency measurement module (1) and used for automatically switching an internal wiring mode according to power frequency parameters to be measured; a series and parallel impedance suppression module (3), connected to the automatic measurement wiring switching module (2) and the measured ultra-high voltage line (4) separately and used for reducing the influence on measurement by electrostatically induced voltage and induced current; and an opposite-end GPS synchronous measurement module (5), connected to the measured ultra-high voltage line (4) and used for synchronously measuring physical quantities of the line at the other end of the measured ultra-high voltage line (4) by means of GPS synchronization. Compared with the prior art, the device has the advantages that the device is of modular design, wiring is easy, and all tests can be completed as long as wiring is performed once.