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GAOTek power frequency transmission line tester along with the development of the power grid and line corridors land tensions, with how to set up more and more prevalent.

This Partial Discharge Line Tester has frequency band of 300 MHz to 2000 MHz, measurement range of - 90 dB to 80 dB and EV sensor of 5 MHz to 100 MHz.

Frequency voltage line tester is suitable for overhead lines of small current grounding systems. after the single phase ground fault occurs on the line and stops, the equipment can be used to accurately locate the grounding point.

GAOTek transformer dc winding resistance tester is a measurement  project for the inspection, installation, debugging, and preventive testing of semi-finished and finished products in transformer manufacturing.