EN
GDJF-2007AD Digital Partial Discharge Detection System
GDJF-2007AD Digital Intelligent Partial Discharge Detection System with AC/DC Dual Mode, 2-Channel Synchronous Acquisition, 100MHz Sampling Rate, 0.1pC Sensitivity, Professional PD Analysis Software, for High-Voltage Equipment Type Tests and Arbitration Measurements.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDJF-2007AD is a professional-grade, IEC 60270-compliant digital partial discharge detection systemexclusively designed for high-precision partial discharge measurement of high-voltage electrical equipment in both laboratory and field environments. It fully complies with IEC 60270:2015, GB/T 7354-2018 and DL/T 848.1-2016 standards, adopting an advanced 12-bit high-speed ADC + FPGA hardware acceleration architecture to achieve 2-channel synchronous data acquisition and real-time signal processing.
The system features a unique AC/DC dual-mode design, which can accurately measure partial discharge signals under both AC and DC voltage conditions. With an industry-leading 0.1pC detection sensitivity and >80dB dynamic range, it can capture extremely weak partial discharge signals while accurately measuring strong discharge signals without saturation. It is equipped with 9 standard frequency band combinations and multiple digital anti-interference technologies, which can effectively suppress various on-site interferences and ensure reliable measurement results. The professional PD analysis software provides comprehensive data analysis functions including PRPD, PRPS, 3D maps and trend graphs, supporting automatic discharge type identification and severity assessment. With a portable engineering chassis design and built-in 12-inch industrial touch screen, it is suitable for both laboratory type tests and on-site fault diagnosis. Ideal for factory type tests, third-party arbitration tests, scientific research and on-site acceptance tests of power transformers, GIS, high-voltage cables, instrument transformers, surge arresters and other high-voltage equipment.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | IEC 60270:2015, GB/T 7354-2018, DL/T 848.1-2016 |
| Operating Mode | AC mode, DC mode |
| Synchronous Channels | 2 independent channels (4 channels optional) |
| Sampling Rate | 100MS/s per channel |
| Resolution | 12-bit |
| Detection Sensitivity | 0.1pC (system background noise <0.05pC) |
| Measurement Range | 0.1pC ~ 10000nC |
| Dynamic Range | >80dB |
| Hardware Architecture | FPGA + DSP dual-core processing |
| Frequency Bands | |
| Standard Frequency Bands | 9 pre-set combinations (10kHz~1MHz) |
| Custom Frequency Bands | 10kHz~1MHz arbitrary combination |
| Anti-Interference Technologies | |
| Time-Domain Windowing | Yes |
| Frequency-Domain Filtering | Yes |
| Pulse Shape Recognition | Yes |
| Phase-Shift Interference Suppression | Yes |
| Background Noise Subtraction | Yes |
| Display & Operation | |
| Display | 12-inch high-resolution industrial touch screen |
| Operation Modes | Touch screen + physical buttons |
| Language Support | Chinese/English bilingual |
| Software Functions | |
| Map Display | PRPD, PRPS, waveform, spectrum, pulse count, trend, 3D map |
| Discharge Type Identification | Yes (automatic) |
| Severity Assessment | Yes (automatic) |
| Report Generation | Automatic Word/PDF report generation |
| Data Management | Storage, query, comparison, export |
| Remote Control | Yes (via LAN) |
| General Parameters | |
| Power Supply | AC 220V±10%, 45~65Hz |
| Power Consumption | <500W |
| Dimensions | 580×360×320mm (L×W×H) |
| Weight | ~15kg (main unit) |
| Housing | Rugged aluminum alloy engineering chassis |
| Operating Temperature | -10℃ ~ +50℃ |
| Operating Humidity | ≤90% RH (non-condensing) |
| Altitude | ≤2000m |
Applications
Core Test Objects
- Power transformers: 10kV~1000kV oil-immersed and dry-type power transformers
- GIS equipment: 110kV~1000kV GIS and HGIS gas insulated switchgears
- High-voltage cables: 10kV~500kV XLPE power cables, cable terminals and joints
- Instrument transformers: 10kV~500kV current transformers (CT) and voltage transformers (VT)
- Surge arresters: 10kV~500kV zinc oxide surge arresters
- Other equipment: Capacitors, reactors, bushings, high-voltage switches
Typical Usage Scenarios
- Electrical equipment manufacturers: Factory type tests and outgoing quality control
- Third-party testing institutions: Arbitration tests and compliance certification
- Scientific research institutes: Partial discharge mechanism research and standard formulation
- Power companies: High-voltage equipment acceptance tests and fault diagnosis
- Power engineering companies: Power grid construction and renovation project acceptance
Advantages
Compliance with International Arbitration Standards
Fully meets IEC 60270:2015 standard, test results are globally recognized and legally valid → can be used as arbitration basis for quality disputes
Unique AC/DC Dual Mode Design
One system supports both AC and DC partial discharge measurement → meets the test requirements of all types of high-voltage equipment
Industry-Leading Detection Performance
0.1pC ultra-high sensitivity and >80dB large dynamic range → captures extremely weak partial discharge signals while accurately measuring strong discharge signals
9 Standard Frequency Bands & Powerful Anti-Interference
Multiple frequency band combinations and digital anti-interference technologies → obtains reliable test results even in strong interference environments
Professional PD Analysis Software
Comprehensive map display and data analysis functions → automatically identifies discharge types and assesses severity, reduces operator skill requirements
FAQ
Q: Can it measure partial discharge under DC voltage?
A: Yes. GDJF-2007AD features a unique AC/DC dual-mode design, which can accurately measure partial discharge signals under both AC and DC voltage conditions. This is particularly important for testing DC equipment such as HVDC transmission equipment and DC cables.
Q: Does it support automatic calibration according to IEC 60270 standard?
A: Yes. The system is equipped with a built-in automatic calibration system and a standard calibration pulse generator. It can complete system calibration with one click according to the requirements of IEC 60270 standard, ensuring the accuracy and traceability of measurement results.
Q: What anti-interference technologies does it have?
A: GDJF-2007AD adopts multiple advanced digital anti-interference technologies including time-domain windowing, frequency-domain filtering, pulse shape recognition and phase-shift interference suppression. These technologies can effectively suppress various on-site interferences such as power frequency interference, periodic interference and narrow-band interference, ensuring reliable test results even in complex electromagnetic environments.
