Online monitoring device for mechanical characteristics of circuit breakers

With the rapid development of smart grids, substation automation technology has made great progress, but there is still a lack of status monitoring to reflect the health status of electrical equipment, and it cannot achieve true unmanned operation. Substation circuit breakers are equipment with frequent mechanical and electrical actions, which are prone to malfunction during operation and can cause power grid accidents, resulting in significant economic losses. Therefore, the online status monitoring technology of circuit breakers is a key technology for achieving unmanned substation operation. Our company's high-voltage circuit breaker online status monitoring product is based on this background, using advanced communication, microprocessor, sensor, database management and other technologies to continuously monitor the mechanical characteristics, temperature and other aspects of the circuit breaker during operation for a long time. The real-time online monitoring of the circuit breaker's operating status is achieved by extracting the mechanical motion parameters of the circuit breaker, establishing a standard circuit breaker monitoring model and a complete expert diagnostic system, analyzing and diagnosing the collected data, and providing the best evaluation system for each waveform data.

Product Overview

Online monitoring device for mechanical characteristics of circuit breakersAdopting advanced technologyLoRa wireless communication, microprocessors, sensors, database management and other technologies are used to continuously monitor the mechanical characteristics, temperature and other parameters of circuit breakers in operation for a long time. The real-time online monitoring of the operating status of circuit breakers is achieved by extracting the mechanical motion parameters of circuit breakers, establishing a standard circuit breaker monitoring model and a complete expert diagnostic system, analyzing and diagnosing the collected data, and providing a comprehensive evaluation system for each waveform data.
Online monitoring device for mechanical characteristics of circuit breakersAdopting Ethernet TCP/IP protocol, data is transmitted to data servers through Ethernet to achieve local digitization, remote networking, monitoring and early warning automation. It quickly and accurately locates problems with circuit breakers, provides fast and accurate information for operation scheduling and maintenance personnel, and promotes the construction of ubiquitous power Internet of Things.

System functions

This system can monitor the live operation status and shutdown status of circuit breakers in two modes.
Test Item

★ Current waveform of circuit breaker opening and closing coils

★ Opening and closing time of circuit breaker

★ Energy storage motor current

★ Energy storage time

★ Action stroke waveform diagram (optional)

★ Circuit breaker on/off status and energy storage status

★ Statistics of the number of opening and closing cycles and failure cycles of circuit breakers

Product advantages

According to the "Preventive Testing Regulations for Power Equipment" (DL/T596-1996), "Maintenance Process Regulations for 12kV Outdoor High Voltage Vacuum Circuit Breakers" (DL/T 391-2010), and the released "Anti accident Technical Measures for High Voltage Switchgear", our company has developed an online status monitoring device for circuit breakers, which provides a scientific basis for the maintenance of circuit breakers. Its main advantages are:

Not affecting or changing the structure, wiring, and characteristics of the circuit breaker itself.

Meet the monitoring requirements of various forms such as conventional three-phase circuit breakers, railway traction single-phase circuit breakers, and subway DC circuit breakers.

LCD color touch screen (optional) displays the operating status and health status of the circuit breaker, and obtains real-time parameters and curves of the circuit breaker.

It can be centrally displayed through wired or wireless means, meeting the different needs of new construction and renovation projects.

Real time monitoring of the opening and closing coils and energy storage coils of the circuit breaker, and alarm when the coil current is abnormal. The device uses a through core Hall sensor to collect current signals, which does not affect the original operation of the circuit breaker and improves power supply reliability.

The vacuum degree of the circuit breaker is monitored online, and the equipment status is uploaded to the touch screen or displayed in the background.

Equipped with standard Ethernet, RS485, and IoT wireless communication interfaces, it can also be extended to IEC61850 protocol, which complies with the construction standards of ubiquitous power IoT.