Product name: HC8033 high-voltage parallel capacitor online monitoring system
Category: intelligent online monitoring system for substations
Detailed introduction
During long-term operation, high-voltage parallel capacitors have many defects and faults, and the current grid maintenance operation mode cannot effectively predict equipment failures in advance, so that a single capacitor failure is prone to expand into a whole group failure, which poses a major hidden danger to the safe operation of the equipment and affects the on-site support capacity of reactive voltage. The high-voltage parallel capacitor online monitoring system can perform online fault diagnosis and analysis on high-voltage parallel capacitors, can timely detect equipment abnormalities, and reduce the defect rate and accident rate of high-voltage parallel capacitors, which is of great significance.
Functional features
※ The monitoring system can automatically transmit the measurement data of each capacitor node in real time;
※ The temperature acquisition module adopts high-precision digital temperature sensor and high-capacity disposable lithium battery, which not only improves the temperature measurement accuracy, but also makes the service life of the module reach more than 5 years;
※ The current acquisition module adopts an integrated self-power structure, and has a built-in high-speed microcontroller and analog-to-digital converter, so that it can obtain measurement data continuously and accurately;
※ Zigbee wireless network is used between the capacitor monitoring host and the current acquisition module and temperature acquisition module, which not only saves wiring costs, but also greatly improves the safety of the system;
※ Two sets of different coils are used on the secondary side of the discharge coil, which does not affect the original open triangle protection;
※ In addition to the communication function of connecting the upper and lower ends, the capacitor monitoring host is also responsible for collecting a series of parameters such as the voltage at both ends of the capacitor and calculating the capacitance of the capacitor;
※ All data monitored by the capacitor have the ability to analyze data in real time and store it for a long time;
※ The fault diagnosis and analysis software has powerful data management capabilities, and can automatically alarm and propose early warning measures;
※ Configuration parameters can be set flexibly and conveniently according to user needs.
| Technical Parameters | |||
| HC8033M High Voltage Shunt Capacitor Monitoring Host | HC8033S High Voltage Shunt Capacitor Current Acquisition Module | ||
| Collect node | 48 wireless sensors | Current range | 25A-120A |
| Sampling interval | 1 minute | Measurement accuracy | ±0.5% |
| Voltage Channel | 4-way | Transmit power | 10mW |
| Test range | 0-120V | Transmission distance | 30-50 meters |
| Unbalanced voltage | 0-120V | Rated Power | 0.8W |
| Voltage measurement accuracy | ±0.2% | Power supply | CT self-powering method |
| Capacitance measurement range | 14μF-60μF | Special discharge coil for high voltage shunt capacitor | |
| Capacitance measurement accuracy | ±0.5% | Rated transformation ratio | 10000/100/100V |
| Communication interface | Zigbee、RS-485 | Rated frequency | 50Hz |
| Communication Protocol | ModBus | Maximum operating voltage | 12kV |
| Rated Power | 10W | Rated secondary voltage | 100V |
| Dimensions | 220mm*185mm*85mm | Rated secondary load | a1*1:20VA/0.2级 |
| HC8033T High Voltage Shunt Capacitor Temperature Acquisition Module | a2*2:50VA/0.5级 | ||
| Temperature range | -20℃~120℃ | Limit output | 400VA |
| Measurement accuracy | ±0.5℃ | Steady-state overvoltage | 1.2x, continuously |
| Battery ordered | 5年 | ||
| Transmit power | 10mW | ||
| Transmission distance | 30-50米 | ||
| Dimensions | 70mm*40mm*23mm | ||


