Product video
HM2823 High Voltage Switchgear Partial Discharge Tester Display Video
Products Description
The HM2823 Partial Discharge Tester for High-Voltage Switchgear utilizes received partial discharge ultrasonic signals to detect the presence and location of partial discharges. Combined with real-time image and data displays, it enables rapid diagnosis of partial discharge conditions. This locator integrates both transient earth voltage and ultrasonic detection methods.
Products Features
● Ultrasonic and TEV partial discharge waveforms are displayed alongside yellow, green, and red warning thresholds on a single interface-a domestic first.
● Measures partial discharge magnitude using transient earth voltage (TEV) and ultrasonic detection, expressed in dBmV;
● Features a color LCD screen for more intuitive and user-friendly display;
● Includes headphone monitoring mode for real-time listening to partial discharge signals in ultrasonic mode;
● Displays waveforms in real time and stores valuable waveform data; test data is automatically saved for easy record retrieval and subsequent analysis;
● High signal amplification and sensitivity; effective signal reception range: 15m;
● Moderate-intensity red laser aiming with strong focusing capability ensures precise, safe, reliable, and practical positioning;
● Detects and locates insulator discharges on towers and creepage at exposed cable heads;
● Primarily designed for detecting partial discharges in high-voltage switchgear;
● User-friendly design with lightweight portability: 1kg (main unit) and 0.5kg (sensor).
Paramters
1 TEV Performance Parameters
- Sensor: Capacitive;
- Measurement Range: -5 to 60 dB, 1 dB increments;
- Resolution: 1 dB.
2 Ultrasonic Measurement Parameters
- Measurement Range: -11 dB to 68 dB, 1 dB increments;
- Resolution: 1 dB;
- Sensor Center Frequency: 40kHz±1kHz;
- Sensor Diameter: 16mm.
3 Instrument Hardware Specifications
- Display: Color backlit LCD;
- Display Resolution: 320X240;
- Horizontal Sensitivity: 50μs/Div ~ 2ms/Div;
- Vertical sensitivity: 4 μV/Div ~ 400 μV/Div (ultrasonic);
400 μV/Div ~ 40 mV/Div (TEV);
- Trigger modes: Auto, Norm, Sign;
- PC interface: USB connection;
- Charging method: Dedicated charger;
- Data storage: Supports SD card storage;
- Operating time: 4 to 5 hours per full charge;
- Controller: Membrane keyboard;
- Connectors: 2.1mm low-voltage DC charger input;
- 3.5mm stereo headphone jack;
- External ultrasonic sensor input;
- Headphones: Minimum 8 ohms.
4. Dimensions
- Dimensions: Main Unit 245×132×45 mm; Parabolic Diameter: 275 mm;
- Weight: 1 kg (Main Unit) 0.5 kg (sensor);
5 Battery Charger
- Rated voltage: 90–264V AC;
- Frequency: 47–63Hz;
- Charging voltage: 12V DC;
- Charging current: 500 mA;
- Full charge time: 5 hours.
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