HM306 zinc oxide arrester electrified tester is a special instrument to test electrical performance of zinc oxide arrester. It is used in charged or uncharged detection of zinc oxide arrester at various voltage level, so as to find dangerous defects inside the equipment, such as insulation damp and valve aging etc. The instrument is easy to operate and convenient to use. The whole measurement process is controlled by man-machine interface. It can test the full current, resistive current and its harmonics, power frequency reference voltage and its harmonics, active power and phase difference of zinc oxide arrester. The large screen can display the real waveform of voltage and current. The instrument uses digital waveform analysis technology, harmonic analysis, digital filter and other software anti-interference methods to make measurement result accurate and stable. Also it can analyze the content of fundamental wave and 3-9 harmonic wave accurately, overcome the interference among phases, and measure the resistive current of single-phase arrester correctly
II.Technical Parameters:
1. Power supply:internal lithium battery or DC8.4V adapter 2.Measurement range: Leakage current: 0-20mA (extensible) (optional:current clamp sensor 0-20mA) Voltage: 30-250V(extensible) (optional: input range of electric field intensity:30kV/m~300kV/m.) angle:0-306º Resistive current:0-20mA(extensible) Capacitive current:0-20mA(extensible) 3.Measurement accuracy: current: full current>100μA: ±5% reading±1 word voltage:reference voltage signal>30V: ±5% reading±1 word 4. Measurement parameters: leakage current:full current waveform, effective value of fundamental wave, peak. resistive component of leakage current:waveform 1,3,5,7,9 times effective value positive peak Ir+, negative peak Ir- capacitive current fundamental wave voltage:voltage waveform, voltage effective value phase angle difference, power consumption 5. Voltage basic signal sampling method: wire sync: 40 meters (extensible) wireless sync: >1500 meters (extensible) 6. Lithium battery parameters: charging time > 2.5 hrs continuous working time > 7hrs interval working time > 7×24hrs 7. Overall dimensions: 42×34×18(cm) 8. Weight: 7.5kg
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