The live test instrument for zinc oxide arresters is a specialized device used to detect the electrical performance of zinc oxide arresters. This instrument is suitable for live or power-off detection of zinc oxide arresters at various voltage levels, thereby promptly discovering dangerous defects such as internal insulation moisture and aging of valve plates in the equipment.

The operation of the instrument is simple and convenient to use, with the entire measurement process controlled by a human-machine interface. It can measure the total current, resistive current, and its harmonics, power frequency reference voltage and its harmonics, active power, and phase difference of zinc oxide arresters. The large screen can display the true waveform of voltage and current. The instrument uses digital waveform analysis technology, employing harmonic analysis and digital filtering software anti-interference methods to ensure accurate and stable measurement results, capable of accurately analyzing the content of fundamental waves and 3rd to 9th harmonics, and overcoming inter-phase interference to correctly measure the resistive current of edge-phase arresters.

1. Color Touch Screen: 7-inch HD color touch screen with a resolution of 800×480, supporting human-machine interaction.
2. Large Wireless Range: Compatible with wireless synchronization, wireless transmission signal exceeds 1500 meters, optional up to 5000 meters.
3. Multiple Synchronization Methods: Supports 485 wired synchronization, wireless synchronization; without voltage method, the software calculates to find the voltage reference for three types of synchronization methods.
4. Live and Power-off Compatible: Suitable for use in live, power-off, or laboratory settings for testing zinc oxide arresters.
5. Wide Range Collection: Voltage collection range is 0-250V, current collection is 0-20mA.
6. Three-phase Simultaneous Measurement: Truly measures three-phase currents and three-phase voltages simultaneously, improving work efficiency; also supports single-phase or two-phase measurement, easy to select.
7. Safe and Reliable: The instrument internally carries only low voltage, not exceeding 8.4V; current and voltage sensors are fully isolated for safety and reliability.
8. Selectable Voltage Method: Supports using three-phase or B-phase voltage reference as voltage reference; supports using an induction plate method to take B-phase electric field strength as voltage reference (optional), making voltage sampling convenient.
9. Selectable Current Method: Can sample leakage current by connecting wires to both ends of the arrester counter, or use a current clamp to collect leakage current from the arrester's ground wire (optional).
10. Standard Equipped with Anti-interference Processing: Features anti-interference calculation function and angle compensation function, completely solving mutual interference among three phases required for 220KV and above voltage levels.
11. Built-in Lithium Battery: Standard equipped with high-energy lithium-ion battery, especially suitable for occasions without power supply.
12. High-speed Sampling: High sampling frequency, advanced digital signal processing technology, strong anti-interference performance, extremely precise measurement results.
13. Built-in Calendar Clock: Equipped with a built-in calendar clock to provide time references for printing and saving data.
14. Massive Storage of Test Data: Comes with large capacity storage for massive data storage. Features data storage and browsing capabilities, along with power failure protection.
15. Export Test Data via USB Drive: Features a function to export data via USB drive, exporting Word files.
16. Bluetooth Control and Data Upload: Standard equipped with Bluetooth functionality, comes with Android Bluetooth APP, allowing control, upload, and generation of Word files through a mobile phone or tablet installed with the APP.
17. Convenient Background Color Switching: Allows setting screen colors, changing to blue or black backgrounds, and adjusting background brightness, standby brightness, and standby time.
18. Built-in Training Materials: Includes various wiring methods on the screen to guide on-site usage.
19. Chinese Input for Test Information: Supports inputting relevant site, equipment, personnel, remarks, etc., in Chinese for easy identification and saving of test data, as well as printing.
20. Chinese-English Switching: Directly switch between Chinese and English interfaces on the interface, compatible with domestic and international use scenarios (optional).
21. Portable: Consists of a main unit and auxiliary unit, plus dustproof and corrosion-resistant integrated case, small in size, light in weight, convenient for carrying.
22. Optional Features: The standard version does not include optional features; customers can customize based on their needs.

1. Power Supply: Internal lithium battery or DC 8.4V adapter.
2. Measurement Range:
   • Leakage Current: 0-20mA (expandable); (Optional: Clamp-on current sensor 0-20mA.)
   • Voltage: 30-250V (expandable); (Optional: Electric field strength input range: 30kV/m~300kV/m.)
   • Angle: 0-360º
   • Resistive Current: 0-20mA (expandable);
   • Capacitive Current: 0-20mA (expandable);
3. Measurement Accuracy:
   • Current: When total current > 100μA: ±5% reading ±1 digit;
   • Voltage: When reference voltage signal > 30V: ±5% reading ±1 digit.
4. Measurement Parameters:
   • Leakage Current: Total current waveform, fundamental RMS value, peak value.
   • Resistive Component of Leakage Current: Waveform, 1st, 3rd, 5th, 7th, 9th harmonic RMS values. Positive peak Ir+, Negative peak Ir-.
   • Fundamental Capacitive Current.
   • Voltage: Voltage waveform, RMS voltage value.
   • Phase angle difference, power consumption.
5. Voltage Reference Signal Sampling Method:
   • Wired Synchronization: 40 meters (expandable)
   • Wireless Synchronization: >1500 meters (expandable)
6. Lithium Battery Specifications:
   • Charging Time: > 2.5 hours
   • Continuous Operation Time: > 7 hours
   • Intermittent Operation Time: > 7×24 hours
7. Overall Case Dimensions: Main unit 42cm×34cm×18cm
8. Overall Case Weight: Main unit 7.5kg