GDYZ-301A Zinc Oxide Surge Arrester Tester
It is the special equipment of testing zinc oxide electric performance. The instrument can accurately and stably measure the arrester resistive current and the monitor counter action parameters while the equipment is running. It can also check the monitor ammeter.
● 8inch color LCD touch screen, high speed thermal printer.
● The measurement data of wire and wireless is the same.
● Wireless sampling, with long distance.
A. Wired: indoor use, or on-site where the PT sampling wiring cabinet is near with tested lightning arrester.
B. Wireless: outdoor use, or on-site where the PT sampling wiring cabinet is far from tested lightning arrester, wireless distance is up to 1000M.
● Three-phase can be measured at the same time. The resistive current of 3channels can be measured at the same time, meanwhile, there are two anti-interference modes: 1) no interference: the interphase angle cannot be calculated and corrected automatically under this mode; 2) With interference: the interphase interference angle can be calculated and corrected. Only one time connection to finish measurement of ABC phase.
● Built-in high capacity Li-battery, suitable for no power supply field.
Specification
| Use condition | -20℃- 50℃ | RH<80% |
| Charging power supply | AC 220V±10% | |
| Input range of PT reference voltage | 0-300V | |
| Input resistance of voltage channel | ≥150kΩ(with fuse) | |
| Measuring accuracy of PT reference voltage | ±(2% of the reading+0.5V) | |
| Measuring range of current input | 0-10mA | |
| Measurement accuracy of current fundamental | ±(2% of the reading+5μA) | |
| Measurement accuracy of current harmonic | ±(5% of the reading+10μA) | |
| Input resistance of current channel | ≤1Ω | |
| Action times of monitor | 0～99times | |
| 8/20μS impulse current | ≥50Ap | |
| Calibration range of current meter | 0-10mA | |
| Calibration accuracy of current meter | ±(2% of the reading+5μA) | |
| Measurement resolution | Voltage | 0.001V |
| Current | 0.001mA | |
| Angle | 0.001° | |
| Battery working time | Main unit 8hours, voltage sampling box 12hours | |
| Wireless transmission distance | 1000meters and above(empty and unobstructed) | |
| Dimension of main unit | 320×270×140mm | |
| Handheld collection probe | 180×120×80mm | |
| Weight of main unit | 4kg(without accessories) | |
