MOA Zinc Oxide Surge Arrester Resistive Current and Total Leakage Current Tester for Zno Lightning Arrester |
The SXYHX Series Online Zinc Oxide Arrester Tester is a specialized instrument designed to assess the electrical performance of zinc oxide (MOA) surge arresters. It is suitable for both online (live-line) and offline testing of arresters across various voltage classes, enabling the detection of critical defects such as internal moisture ingress and valve plate degradation.
User‑friendly and fully automated, the instrument performs measurements under microprocessor control. It captures key parameters including total current, resistive current, harmonics, voltage frequency, active power, and phase angle. A large real‑time display clearly visualizes voltage and current waveforms.
Equipped with advanced digital waveform analysis, the tester employs harmonic analysis and digital filtering algorithms to ensure accurate and stable readings. It precisely quantifies fundamental and 3rd to 7th harmonic components while effectively eliminating phase‑to‑phase interference, thereby delivering reliable resistive current measurements even under field conditions.
The unit includes a built‑in high‑speed thermal printer and rechargeable batteries for complete portability and convenience. Utilizing high‑speed magnetically isolated digital sensors for direct voltage and current acquisition, the instrument guarantees both data integrity and operational safety.
1. 6-35kV Surge Arresters Solution: Resolves challenges in live testing for 6-35kV zinc oxide surge arresters.
2. No Pole Climbing Required: Eliminates pole climbing and wiring, enabling fast and accurate testing.
3. No Lightning Counter Needed: Tests zinc oxide arrester leakage current without lightning counters.
4. Lithium Battery Power: Both the main unit and wireless clamp are powered by high-capacity lithium-ion batteries.
5. Low Current Detection: Accurately measures 10μA leakage current.
6. Wireless Communication: Enables wireless data exchange between clamp and host for rapid sampling.
7. Safety-Insulated Pole: 5-meter multi-section insulated pole design ensures convenience and reliability.
8. Handheld Device: Compact and reliable handheld terminal.
9. Color Touchscreen: 800×480 HD color touchscreen with human-machine interaction.
10. Multiple Synchronization Methods: Supports wired synchronization (voltage-based) and voltage-free synchronization via software calculation.
11. Live/Offline Compatibility: Suitable for use in live circuits, power-off conditions, or laboratory environments.
12. Wide Measurement Range: Voltage range 0-250V, current range 0-20mA.
13. Analog Three-Phase Testing: Tests A, B, C phases of zinc oxide arresters in three separate tests, with results saved as a single test set.
14. Safety and Reliability: Only weak current flows internally (voltage ≤8.4V); current and voltage sensors are fully isolated for enhanced safety.
15. High-speed Sampling: Featuring high sampling frequency and advanced digital signal processing technology, this device delivers exceptional measurement accuracy with strong anti-interference performance.
16. Built-in Calendar Clock: The integrated calendar clock provides time references for data printing and archiving.
17. Massive Data Storage: Equipped with large-capacity storage for extensive data retention, the device supports both data storage and browsing functions while incorporating power failure protection.
18. USB Data Export: The built-in USB port enables data export to generate Word files.
19. Bluetooth Control and Upload: Optional Bluetooth functionality with an Android-compatible app allows users to control operations, upload data, and create Word documents via smartphone or tablet.
20. Customizable Background: Users can adjust screen colors to patterned blue or black backgrounds, while configuring background brightness, standby brightness, and standby duration.
Parameters
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Voltage |
30-250V |
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Leakage current |
0-20mA |
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Resistive current |
0-20mA |
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Capacitive current |
0-20mA |
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Current accuracy |
±5% reading±1 |
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Voltage accuracy |
±5% reading±1 |
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Lithium battery |
Charging time: > 2.5h |
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Continuous working time: > 7h |
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Interruptions in working time: > 7×24h |
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Dimension |
42cm×34cm×18cm |
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Weight |
7kg |






