How to Use Zinc Oxide Arrester Tester Skillfully?

       The zinc oxide surge arrester tester is a special instrument used to detect the electrical performance of the surge arrester. This instrument is suitable for the detection of live or power outages of surge arresters of various voltage levels, so as to timely find dangerous defects such as dampness in the insulation of the equipment and aging of the valve.

        The equipment is simple and easy to use. During the entire measurement process controlled by IPC, all the measured current, resistive current and its harmonic MOA, frequency reference voltage and its harmonics, active power and phase, the actual voltage and the large screen current waveform. The instrument uses digital waveform analysis, harmonic analysis and accurate results, stable digital filtering software interference methods, and accurate analysis of the basic harmonic content of 3 to 7 times, and overcome the interference phase, the correct phase of the resistance current Measure along the arrester.

       In the case of power failure of the transformer, please connect the instrument and the test transformer reliable grounding wire first, then connect the current test wire (the yellow, green, and yellow wires of the three core wires are respectively connected to the lower ends of the three zinc oxide surge arresters), and finally connect the withstand test wire (the yellow, green, and red wires of the four core wires are connected to one end of the transformer measurement winding, and the black wire is connected to the other end of the transformer measurement winding, pay attention to the direction, if the direction cannot be aligned).

       In combination with the current test line, first of all, according to the magnitude of the current, the current test line reaches the upper range of the host "0-2mA" or "> 2mA" (standard curve of 2-10mA> 2mA), and then the the MOA at the other end of the method is reduced. The method of connecting the voltage test line is to connect the instrument first, and then connect the transformer to test the winding. After checking the correct wiring, slowly increase the voltage to the working voltage of the zinc oxide arrester, and then operate the instrument to start the test.

Software settings:

Current range: select the corresponding setting of the current range according to the host panel.

Synchronization mode: select "wired synchronization" or "wireless synchronization", and select "three-phase voltage" for voltage mode. Wired synchronization, please connect the communication line between the two machines, you can not connect the antennas of the two machines; wireless synchronization, please connect the antennas of the two machines, you can not connect the signal line, the long-distance antenna can be pulled up or absorbed in other shell of the device. 

PT ratio: measured according to the input test transformer turns ratio (the ratio of high-voltage winding to measurement winding). For example, a 50KV test transformer measures 100V of the winding (instrument end), and the value is set to 50KV:100V=500.

       When performing single-phase or two-phase tests in this connection mode, only the corresponding test line is connected, and the remaining lines are suspended.

       Zinc Oxide Arrester Tester is a relatively commonly used high-voltage power test equipment. It is necessary to master the working principle and test method of this equipment. GDZX is not only a power test equipment manufacturer, but also has a professional technical service team. GDZX is at your service, for more information, visit GDZX's official website: http://en.gdzxdl.com/