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

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