Zinc Oxide Lightning Arrester Tester is a special instrument for detecting electrical properties of zinc oxide surge arresters. The instrument is suitable for charging or power outage detection of various voltage levels of zinc oxide surge arresters, timely detection of equipment internal insulation damp and valve aging and other dangerous defects.
It is simple and easy to operate, the entire measuring process is controlled by microcontrollers to measure the full current, resistive current and its harmonics, frequency reference voltage and its harmonics, active power and phase difference of zinc oxide surge arrester, a large screen can display the real waveform of voltage and current.
It is adopt with digital waveform analysis techniques, used harmonic analysis and digital filtering software such as anti-jamming method to make the test result accurate and stable, it not only can accurately analysis the fundamental and the content of 3 to 7 times of harmonic, but also can overcome the influence of the interphase interference to rightly measuring the resistive current of edge phase arrester.
It is equipped with high-speed printer panel, rechargeable battery, it is very convenient to test in the field. It uses a unique high-speed magnetic isolation digital sensor to directly collect the signal of input voltage and current, ensure the data reliability and security.
1. Large-screen LCD display, easy to operate;
2.Adopting high-precision sampling, processing circuitry, advanced Fourier harmonic analysis techniques to ensure the data is more reliable;
3.Using a unique high-speed magnetic isolation digital sensor to directly collect the signal of input voltage and current, ensure the data reliability and security;
4.Support wireless synchronization voltage sampling way;
5.With the function of fundamental peak output of resistive current, edge phase correction and so on;
6.It is equipped with a rechargeable battery, calendar clock, mini printer, it can store 120 sets of measurement data.
|Measurement range of full current||0-10mA RMS,50Hz/60Hz; Accuracy:±(reading×5%+5μA)|
|Measurement accuracy of fundamental resistive current||±(reading×5%±5μA)|
|Accuracy of current harmonics||±(reading×10%±10μA)|
|Input range of reference voltage||25V~250V RMS,totalharmonic content<30%,50Hz/60Hz|
|Measurement accuracy of reference voltage||±(reading×5%±0.5V)|
|Measurement accuracy of voltage harmonics||±(reading×10%)|
|The angle of fundamental current and voltage Φ||0~360°|
|Battery working time||6 hours|
|Charging power||220V±10% 50Hz/60Hz|
|Charging time||5 hours|
|Operating environment Temperature||(-10-50 ℃)|
|Operating environment Relative Humidity||<90%|
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