High Voltage Test Equipment
GDJF Partial-Discharge Test System
Digital partial discharge measuring and analysing instrument with four independent channels, combining discharge measurement, fault location and online monitoring. Complies with IEC270, GB7354-2003 and DL 417-91.
Overview
Digital partial discharge measuring and analysing instrument with four independent channels, combining discharge measurement, fault location and online monitoring. Complies with IEC270, GB7354-2003 and DL 417-91.
Standards & Compliance
This product is designed and tested to the following international and Chinese standards.
Application Scenarios
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Get a QuoteDetailed Description
Overview: the partial discharge comprehensive analyser is a new generation of high-performance digital partial discharge measuring and analysing instrument built on entirely new technology. It is a multi-channel desktop instrument with a TFT liquid crystal display, a reliable system and a low failure rate. Besides partial discharge measurement of high-voltage electrical equipment, it provides precise location of the fault point, and its embedded expert diagnostic system accurately discriminates between different discharge types. It can also be used for online continuous partial discharge monitoring of large power transformers and similar high-voltage equipment, so partial discharge measurement, location and online monitoring are genuinely combined in one instrument.
The analyser is a dedicated instrument for measuring and analysing the insulation performance of power equipment. The system uses integrated modern electronic and computer technology to realise signal amplification (analogue, electronic and digital), filtering, data acquisition, data processing, graphic display and automatic test report generation, thereby completing partial discharge measurement, location and fault diagnosis.
The scope of application, detection methods, test circuits and technical performance parameters fully comply with the international standard IEC270, the national standard GB7354-2003 Partial Discharge Measurements, and DL 417-91 Guide for Partial Discharge Measurement of Power Equipment on Site.
Features: the instrument is multi-channel, desktop and TFT LCD based, with a reliable system, a low failure rate and strong anti-interference capability. It generates the test report automatically as the test proceeds, and the report can be browsed and printed. The re-display sampling function restores a saved data file into a waveform on the screen. Four electrical signal input ports and four optical signal input ports allow several partial discharge signals to be measured and analysed simultaneously.
Technical Specifications
| Channels | 4 independent channels |
|---|---|
| Sampling rate | 1M, 5M, 10M selectable |
| Sampling resolution | 12 bit |
| Range switching | 6 steps: -40 dB, -20 dB, 0 dB, 20 dB, 40 dB, 60 dB |
| Measuring frequency band | 3 dB bandwidth 10 kHz – 1 MHz |
| Digital filtering | Freely selectable from 10 kHz to 1 MHz |
| Programmable filter segments | Low cut-off: 10 kHz, 20 kHz, 40 kHz, 80 kHz; High cut-off: 100 kHz, 200 kHz, 300 kHz, 400 kHz |
| Non-linear error of this range | 10% |
| Measuring range | 0.1 pC – 100,000 pC |
| Sensitivity | 0.1 pC |
| Capacitance range of the test object | 6 pF – 250 µF |
| Test supply frequency range | 50 – 500 Hz |
| Display | 12 inch TFT true-colour touch LCD |
| Display resolution | 1024 x 768 |
| USB | 3 ports, for an external mouse and keyboard and for external removable storage |
| Power mode | AC 220 V; frequency 50 Hz; power 300 W |
| Electrical signal interface | 4 BNC ports for signal input |
| Optical signal interface | 4 ports for signal input |
| Network port | 1 port |
| Grounding terminal | External grounding |
| CPU | Clock frequency 1.60 GHz |
| Memory | 2.0 GB |
| Hard disk | 128 GB solid-state drive |
| Operating system | Windows Xp |
| Operating environment | Ambient temperature: -10 to 45 ℃; relative humidity: 95% or less |
| Dimensions (L x W x H) | 474 mm x 288 mm x 370 mm |
| Weight | 15.8 kg |
Frequently Asked Questions
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