Multifunctional high-voltage electrical equipment insulation tester

Abstract

The invention discloses a multifunctional high-voltage electrical equipment insulation tester. The tester comprises a measuring circuit, a variable-frequency power supply, a boosting transformer, a control panel, a Cx reverse wiring current detection module, a Cx positive wiring current detection module and a resistance testing module; the input end of the variable-frequency power supply is connected with a main power supply, the output end of the same is connected with the boosting transformer, the boosting transformer is successively connected with a CVT isolation module and the Cx reverse wiring current detection module, the boosting transformer is also connected with a CVT low-voltage output end, the high-voltage output end of the boosting transformer is connected to the measuring circuit through a CVT reverse wire and an internal capacitor Cn which are connected in parallel, the measuring circuit is connected to the Cx reverse wiring current detecting module, the Cx positive wiring current detection module and the resistance testing module are connected to the measuring circuit, and the measuring circuit is connected to the control panel. The tester can realize insulation resistance test and dielectric loss multichannel test, ensures the accuracy of test data, and reduce the work time and risks.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment insulation testing equipment, and relates to a multifunctional high-voltage electrical equipment insulation testing device. Background technique [0002] At present, for substation equipment maintenance testing, dielectric loss and insulation resistance tests are required for each device, and dielectric loss testers and insulation resistance testers need to be carried, and separate wiring is required. The wiring at the test site is cumbersome, the test work time is long, and the efficiency is low. Repeated disconnection may also cause some damage to the equipment under test. [0003] In order to solve the existing problems, it is proposed to realize the function of testing dielectric loss and insulation resistance at the same time in one instrument, adding the insulation resistance test function on the basis of dielectric loss tester, and having multi-channel testing of dielectric los...

AI Technical Summary

Problems solved by technology

[0002] At present, for substation equipment maintenance testing, dielectric loss and insulation resistance tests are required for each device, and dielectric loss testers and insulation resistance testers need to be carried, and separate wiring is required. The wiring at the test site is cumbersome, the test work takes a long time, and the efficiency is low. Repeated disconnection may also cause some damage to the equipment under test

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