Description
Overview
GAOTek Partial Discharge Tester can be widely used in partial discharge detection of power system, including high voltage switchgear, ring network cabinet, voltage or current transformer, transformer (including dry type transformer), GIS, overhead line, cable and other equipment insulation state detection, through the following indicators to measure the discharge degree of electrical equipment: Partial discharge intensity detection: by measuring the discharge signal in one power frequency cycle, the partial discharge intensity is characterized according to the maximum value (dB) in the discharge pulse sequence.
Features
- Detect partial discharge in high-voltage equipment with various sensors
- Provides waveform, PRPD, PRPS, and other discharge pattern analysis
- User-friendly interface for device data management
- Built-in ultrasonic and TEV sensors, compatible with various sensors
- Non-intrusive detection, no need for power-off or extra high-voltage source
- Wide test bandwidth from 30 kHz to 2.0 GHz for different frequency bands
Technical Specification
| TEV measurement | AE measurement | ||
| Measuring range | 0 dB mV to 60 dB mV | Measuring range | -6 dB μV to 68 dB μV |
| Resolution | 1 dB | Resolution | 1 dB |
| Precision | ± 1 dB | Precision | ± 1 dB |
| Maximum pulse per cycle | 1400 | Frequency Range | 20 kHz to 200 kHz |
| Measurement frequency band | 3 MHz to 100 MHz | ||
| AA measurement | UHF measurement | ||
| Measuring range | -6 dBμV to 68 dBμV | Detection frequency | 300 MHz to 2000 MHz |
| Resolution | 1 dB | Measuring range | 0 dBmV to 60 dBmV |
| Precision | ± 1 dB | Sensitivity | ＜ 1 dBm |
| Sensor center frequency | 40 kHz | Sensor frequency band | 300 MHz to 2000 MHz |
| HFCT measurement | |||
| Sensor transmission impedance | 5 mV/mA | ||
| Detection frequency | 1 MHz to 30 MHz | ||
| Sensitivity | ≤ 50 pC | ||
| Hardware | |||
| Shell | ABS | ||
| Screen | 4.0 in (10.16 cm) RGB LCD screen, resolution 800 × 480 | ||
| Sampling accuracy | 12 bits | ||
| Synchronization mode | Internal synchronization, external synchronization | ||
| Connector | USB interface (also charger input) 0.14 in (3.5 mm) stereo headphone jack External sensor input interface |
Wi-Fi | |
| Earphone | 8 Ω minimum | ||
| SD card | Standard configuration 16 G to 64 G | ||
| Built-in battery | 3.7 V or 5000 mAh lithium battery | ||
| Operating hours | Approximately 6 hrs | ||
| Charger | AC 90 V to 264 V or DC 5 V | ||
| Operating temperature | -4 °F to 122 °F (-20 °C to 50 °C) | ||
| Humidity | 20 % to 85 % relative humidity | ||
| Volume | 8.26 in × 3.93 in × 1.37 in (210 mm × 100 mm × 35 mm) | ||
| Weight | 0.88 lb (400 g)Â | ||