UHF partial discharge online monitoring deviceUPD3900
1. Company Profile
Beijing Huadian Zhicheng Electrical Equipment Co., Ltd. was established in 2014. It is a high-tech enterprise engaged in the research and development, promotion and technical consulting services of high-voltage electrical equipment status detection technology. It is committed to solving the "bottleneck" problem of power grid equipment status monitoring technology and "escorting" the safe operation of power equipment. Relying on the team and technical advantages of the Beijing Key Laboratory of High Voltage and Electromagnetic Compatibility of North China Electric Power University, the company is committed to transforming the laboratory's achievements into industry-university-research
2. Product Introduction
The UPD3900 UHF partial discharge online monitoring system is a high-end multi-purpose intelligent expert detection system independently developed by our company, which integrates UHF partial discharge monitoring, diagnosis and fault location. The system adopts high-speed and real-time acquisition, breaking through the technical bottleneck of long intermittent partial discharge detection and accurate judgment in severe electromagnetic interference environment, and preventing the occurrence of "no sign" breakdown or flashover failures of cables, transformers, GIS, GIL, switch cabinets and other equipment. The system has rich and diverse anti-interference technologies, accurate defect type diagnosis, weak, occasional, high-risk discharge fault detection, fault location technology, and various functional indicators are ahead of similar products at home and abroad.
3. Product Introduction-Picture Display
4. Technical advantages-functional features
Narrowband frequency selection technology can effectively suppress narrowband interference signals in space
Synchronous noise reduction technology can effectively filter out various types of interference signals on site
Multi-source separation technology perfectly solves the problem of multi-source superposition affecting type diagnosis
Multi-channel and multi-parameter synchronous real-time display enables evaluation of possible discharge locations
Typical discharge patterns and severity assessment
5. Excellent system performance
| name |
Parameters |
| Average effective height of sensor |
≥10mm |
| Detection frequency band |
300-1500MHz |
| Sensitivity |
≤1V/m |
| Sampling rate |
100MS/s |
| Dynamic Range |
≥60dB |
| Communication |
Optical fiber, network cable |
| Synchronous mode |
Power Sync |
| External synchronization: 20~300Hz |
| Time synchronization method |
GPS timing, timing accuracy <500ns |
| Anti-interference |
Multi-band filtering technology |
| Multi-channel synchronous noise reduction technology |
| Multiple signal source separation technology |
| Smart Diagnosis |
Intelligent diagnosis accuracy ≥ 80% |
| Satisfy the agreement |
Standard IEC61850 protocol, standard RTU protocol |
| IP Rating |
IP65 |
| EMC level |
GB17626, Level 4 |
| Power supply mode |
AC176-264V |
| Sensor type |
External, internal |
