WJKZC-203 Zinc oxide arrester DC parameter tester
I. Overview
Zinc oxide arrester DC parameter tester is specially used to detect the internal defects of poor electrical contact between MOA valves of non-gap zinc oxide arresters used in power systems of 10kV and below. It is stipulated that power plants and substations should perform DC 1mA voltage (U1mA) and 0.75U1mA leakage current detection on metal oxide arresters before the thunderstorm season and when necessary.
The company has improved the instrument according to the needs of on-site measurement, and organically combined the DC high-voltage power supply, measurement and control system to reduce the size and weight of the instrument. The operation setting is user-friendly, the remote control measurement is realized through the remote control, and the automatic measurement of ambient temperature function is added according to the requirements of the measurement procedure. Equipped with high-speed thermal printer greatly improves the printing speed of test results. It is an indispensable equipment for on-site inspection of power system and zinc oxide arrester production plant.
2. Performance characteristics
1. Temperature measurement: automatically sense the ambient temperature and record the test results.
2. Internal power supply: AC220V alternating current can be used, or it can be powered by built-in rechargeable battery.
3. Easy to use: Chinese menu operation, intuitive display of measurement data, built-in front paper changer for easy paper change and fast printing.
4. Accurate measurement: fully digital processing, built-in precise mathematical model, high measurement accuracy, and good repeatability of test results.
5. It can store 50 sets of test data, which will not be lost when power off, and can check and print at any time.
6. Easy to carry: The height, volume and weight are only 30% to 70% of similar products, and it is easy to carry.
7. Complete functions: measurement, display, clock, temperature, and result printing in one step.
3. Product technical parameters
1. Measuring range: Voltage: 0～30kV, Ripple coefficient: ≤1.5%, Current: 0～1000μA
2. Resolution: Current: 0.5μA, Voltage: 0.1kV
3. Accuracy: 1%±2 characters
4. Built-in power supply charging time: 2-3 hours
5. Built-in power usage time: ≥4 hours
6. Ambient temperature: -10℃～50℃
7. Relative humidity: ≤85% at 25℃
8. Altitude: <1000M
9. Charging voltage: AC220±10%
10. Power frequency: 50±1HZ
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