Wuhan Wei Austrian three high Electrical Equipment Co., Ltd. - WAYH-4C zinc oxide surge arresters Tester WAYH-4C-type zinc oxide arrester tester is used to detect the electrical properties of zinc oxide surge arresters dedicated instrument, which is suitable for a variety of voltage levels zinc oxide surge arresters charged or power failure detection, and to discover the device internal insulation damp and dangerous defects such as aging of the valve plate. Instrument is simple, easy to use, measurement of the whole process is controlled by a microcontroller, zinc oxide surge arresters can be measured current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power and phase difference, the big screen can be displayed real voltage and current waveforms. Interphase Interference instrument to use digital waveform analysis, harmonic analysis and digital filtering software anti-interference method to make accurate and stable measurement results can be an accurate analysis of the fundamental and 3 to 7 times the harmonic content, and overcome the impact, the right edge measurement phase current arrester resistive. The machine is equipped with high-speed panel-style printer, rechargeable battery, test personnel in the field is very convenient to use. The instrument uses a unique high-speed magnetic isolation digital sensor directly collecting input voltage and current signals, to ensure the reliability and security of the data. Instrument features: 1, The machine adopts the large-screen LCD display, full Chinese menu operation, easy-to-use. 2, the high-precision sampling, the processing circuit, the advanced the Fourier harmonic analysis techniques to ensure that the data is more reliable. The instrument uses a unique high-speed magnetic isolation digital sensor directly collecting the input voltage and current signals, to ensure the reliability and security of the data. 4, the instrument can use the electric-field-induced method instead of the PT secondary wiring. (WAYH-4C) 5, the fundamental peak output resistive current edge phase correction function. The instrument is equipped with a rechargeable battery, calendar clock, miniature printer, can store 120 groups of the main technical parameters of the measurement data: current measurement range: 0-10mA rms the 50Hz/60Hz accuracy: ± (reading × 5% +5 μA) resistive current fundamental measurement accuracy (secondary law without white interference): ± (reading × 5% +5 μA) current harmonic accuracy: ± (reading × 10% +10 μA) reference voltage input range: 25V-250V rms , total harmonic content of <30% 50Hz/60Hz reference voltage measurement accuracy: ± (reading x 5% +0.5 V) voltage harmonic measurement accuracy: ± (reading × 10%) fundamental current voltage angle Φ: 0 o-360o electric field strength input range: 30KV/m-300KV/m total harmonic content of less than 30% of the electric field strength measurement accuracy: ± (reading × 10%) of the electric field harmonic measurement accuracy: ± (reading × 10% of) battery Working Hours: Host 6 hours charging power supply: 220V ± 10% 50Hz/60Hz charging time: 5 hours working environment: Temperature: -10-50 ℃ Humidity: <90%