GTPD-92A patrol high frequency partial discharge tester is a new type of instrument combined HFCT sensor detecting and ultrasonic sensor detecting. According to the characteristics of live inspection, two kinds of detection methods of high-frequency current and ultrasonic wave are adopted. It can conduct live detection of cables and transformers (reactors).
1. GTPD-92A parital discharge tester with small size, light weight, easy to carry and convenient for field use.
2. Strong anti-interference ability, excellent performance and easy operation.
3. Combining the HFCT sensor and ultrasonic sensor (contact type) detection methods together, it can detect the live transformers (reactors) partial discharge phenomenon.
4. Combining HFCT sensor, ultrasonic sensor and glass fiber, the live cable partial discharge can be detected.
5. HFCT measurement adopts waveform mode, statistical mode (peak chart, PRPD chart, HRPS chart), pulse mode.
6. Ultrasonic (US) measurement adopts waveform mode, continuous mode and phase mode.
7. Time domain waveform multi-wave display mode can accurately judge the interference and discharge.
8. The software provides an expert waveform library and an intelligent diagnosis system to accurately determine partial discharge types.
9. By measuring the pressure of the ultrasonic signal to speculate the discharge intensity, the partial discharge position can be accurately determined.
10. With data preservation function, data can be reviewed.
11. The inspection data can be exported to the computer through SD card or U disk, so as to complete report.
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Main Instrument |
Channels |
One HFCT, one US |
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Trigger mode |
Internal synchronization, external synchronization and optical synchronization |
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Sampling accuracy |
12 bit |
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Technical characteristics |
Sensor type |
HFCT |
US |
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Detection bandwidth |
100kHz~50MHz |
20kHz~300kHz |
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Transmission impedance |
5mV/mA (10MHz) |
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Output impedance |
50O |
50O |
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sensitivity |
-20dB |
0.1mV |
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Range |
-20dB~80dB |
0.1mV~1V |
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Hard ware |
Display |
4.3 inch TFT true color LCD display, resolution: 480X272 |
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Storage |
SD card, standard 16G, maximum support 32G |
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Interfaces |
Headphone jack, DC charger input port, LED indicator, RS232 port, USB synchronous port USB2.0, RJ45 network port, SD card slot |
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Working power |
Battery powered (16.8V lithium battery), normal working time is about 7 hours, charging time is about 5 hours. |
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Size |
235×133×48mm |
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Weight |
0.85kg excluding the sensors |
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