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Zinc oxide arrester resistive current live tester is a special instrument used in the field and laboratory to detect the relevant electrical parameters of the arrester, and is widely used in the field monitoring (live test) and laboratory (power failure maintenance) test of zinc oxide arrester. It conforms to the key techniques of the People's Republic of China Electric Power Industry Standard "Guidelines for the Implementation of On-site Insulation Test - Surge Arrester Test". This instrument adopts advanced technology such as microcomputer sampling and control, which can measure the full current, third harmonic, resistive current, resistive current peak, capacitive current, active power, etc. of zinc oxide arrester under power frequency voltage.
It also displays the waveform and printout of voltage and current. The large-screen LCD display is adopted, and the Chinese character menu prompts the operation, which makes the man-machine exchange function stronger. At the same time, it provides on-site wiring display.
This instrument has the characteristics of simple wiring, high measurement accuracy and strong reliability.
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AC gapless zinc oxide arrester tester instrument features.
1. This machine adopts large-screen LCD display, full Chinese character menu operation, easy to use;
3. High-precision sampling and processing circuits, advanced Friet harmonic analysis technology to ensure the reliability of data;
4. There is a fuse at the input end of the reference voltage, and there is an isolation transformer inside the instrument, which completely isolates the instrument from the on-site PT, and the double insurance ensures the safety of PT;
5. It has parameters such as resistive current fundamental peak output, angle between fundamental current and fundamental voltage, etc., and the output parameters are stable, which is easy to judge the quality of the arrester;
6. With edge phase correction function, it can eliminate the interference of live test on site;
7. The instrument comes with a rechargeable battery, which can work continuously for more than 3 hours without using 220V AC power;
8 There is a calendar clock, a micro printer;
9. It can store 1024 sets of measurement data;
10 Equipped with RS-232 communication interface, data can be uploaded to the computer for processing.
Main technical parameters:
Reference voltage input range (RMS): 10-200V
Full leakage current measurement range (RMS): 0-10mA
Resistive current measurement range (RMS): 0-10mA
Capacitive current measurement range (RMS): 0-10mA
Surge arrester power consumption:
Clamp between fundamental current and fundamental voltage: 0-360°
Full current system measurement accuracy: 3% of reading + 1 word).
Resistive current measurement accuracy of quasi-ling: reading 10% + 3 words).
AC power supply: AC 220V 10%, 50Hz 1%.
Instrument size: 33cm 28cm 14cm
Instrument weight: 4kg (without test wire pack).
Test wire pack weight: 2kg
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Product features: 1. This machine adopts large-screen LCD display, full Chinese character menu operation.
2. High-precision sampling, processing circuit, advanced Fourier harmonic analysis technology to ensure the reliability of data.
3. There is a fuse at the input end of the reference voltage, and there is an isolation transformer inside the instrument to completely isolate the instrument from the on-site PT, and the double insurance ensures the safety of PT.
4. It has the functions of resistive current fundamental peak output, edge phase correction and so on.
5. The instrument is equipped with a rechargeable battery, a calendar clock, and a micro printer, which can store 210 sets of measurement data.
6. Equipped with RS-232 communication interface, which can upload data to the computer for processing.
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The main thing is the leakage current withstand voltage and impact resistance.
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GHYZ-II zinc oxide arrester live tester is a special instrument used to detect the electrical performance of zinc oxide arrester, which is suitable for the live or blackout detection of zinc oxide arresters of various voltage levels, so as to find dangerous defects such as moisture insulation and aging valve plates in time.
The zinc oxide arrester live tester is simple to operate and easy to use, and the whole process of measurement is controlled by the microcomputer, which can measure the full current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference of the zinc oxide arrester, and the large screen can display the real waveform of voltage and current. The instrument uses digital waveform analysis technology, harmonic analysis and digital filtering and other software anti-interference methods to make the measurement results accurate and stable, can accurately analyze the content of fundamental and 3 7th harmonics, and can overcome the influence of interphase interference, and correctly measure the resistive current of the edge phase arrester.
See for details.
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GH-6602C Zinc Oxide Arrester Tester (Rechargeable) is a special instrument used to detect the electrical performance of zinc oxide arresters, which is suitable for the detection of live or blackout of zinc oxide arresters of various voltage levels, so as to find dangerous defects such as moisture in internal insulation and aging of valves in time.
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