- Controlled by a 32-bit microcontroller, with a full Chinese operation interface, easy to operate.
- Automatically calculates absorption ratio and polarization index, and automatically stores data every minute for 15 seconds, 1 minute, and 10 minutes for analysis.
- High output current, short-circuit current greater than 5mA.
- Strong anti-interference capability, suitable for on-site operation in ultra-high voltage substations.
- Automatically discharges after test completion, with real-time monitoring of the discharge process.
- Built-in rechargeable battery and charger; when the backlight is not used, a full charge can last for 6 to 12 hours of continuous use.
II. Main Technical Performance
Accuracy: ±(10%+5 digits)
Measurement Range: 0.1MΩ to 1000GΩ
Test Voltage: Setting Range: 0.5kV to 10kV (500V, 1000V, 2500V, 5000V, 10000V, five gears) Accuracy: 5%±10V
Short-Circuit Current: >5mA
Measurement Time: 1 minute to 10 minutes (depending on measurement mode)
Charging Power Supply: 180 to 270VAC ,50Hz/60Hz±1% (mains or generator supply)
Operating Environment: Temperature -10 to 40°C, relative humidity 20 to 80%.
III. Operating Components and Functions
1. L terminal
“L” is the high-voltage output terminal, called the line terminal, connected via a high-voltage cable to the tested line end, such as motor windings or cable cores.
2. G terminal
“G” is called the guard terminal, used for measuring the volume resistance of insulating materials or cables using the three-electrode method; it connects to the guard ring of the three-electrode system.
3. E terminal
“E” is called the ground terminal, connected to the ground or neutral of the tested object, such as the metal casing of a motor, transformer core, or cable shield.
IV. Precautions and Others
Please pay attention to safety: L is the high-voltage terminal! E is the ground terminal, and must be connected to earth! 1T=1000G, 1G=1000M
