详情描述

YD-9000Circuit Breaker Mechanical Characteristics Online Monitoring

Circuit breakers in switch cabinets are equipment with frequent mechanical and electrical operations, prone to malfunctions and accidents during operation, leading to significant economic losses. The online status monitoring technology of circuit breakers is one of the key technologies to improve the reliability of transmission and distribution equipment. By monitoring the online status of circuit breakers, one can实时 grasp the operating conditions of the circuit breakers, enabling the extraction of mechanical motion parameters, establishment of standard monitoring models, and analysis, diagnosis, and evaluation of collected data, thereby enhancing the safe operation capability of switch cabinets.

YD-9000The Circuit Breaker Mechanical Characteristic Online Monitoring System is a device developed by YuanDong Power for the online monitoring of the mechanical characteristics of conventional AC/DC switchgear circuit breakers. The device monitors and analyzes the current of the circuit breaker's opening and closing coils, the switching moment of the main contactor status, and the current of the energy storage motor, thereby enabling the real-time monitoring and evaluation of the circuit breaker's current mechanical characteristics, providing a scientific basis for the maintenance and repair of circuit breaker status.

 System Workflow

(1)     Monitor the front-end control current transformers and Hall sensors to collect the operating current of the circuit breaker's opening and closing coils, energy storage motor current, three-phase current start-up characteristics, and other parameters.

(2)     The monitoring front-end transmits monitoring data to the multifunctional monitoring device wirelessly or via cable (as per customer requirements), where the device analyzes the data to generate monitoring results (graphs and data) for on-site display.

(3)     The multi-functional monitoring device uploads the monitoring results to the backend data center for storage and forwarding (data can be forwarded to the user's display control platform or other platforms as per user requirements).

(4)     Front-end monitoring adopted485Data interaction with multi-functional monitoring devices is achieved via communication or fiber optics (or other wireless methods). The multi-functional monitoring devices interact with the back-end data server through wired means (Ethernet cable or fiber optics). The back-end data server communicates with the user's internal network (wired or wireless) in a standard data format (usually).61850Upload data to the user platform.

v  Basic Functions

Ø  Features monitoring of coil current for opening and closing, with signal waveform display.

Ø  Standard waveform storage and comparison display capabilities, with the ability to show the original measurement waveform values.

Ø  Multi-channel synchronous measurement capability, with no fewer than3Piece(s)

Ø  Features external anti-interference capability and is adaptable to high voltage conditions in switchgear, as well as high current operational environments.

Ø  Features hardware and digital filtering for interference.

Ø  Equipped with real-time temperature monitoring for circuit breakers in switch cabinets.

Ø  Diagnostic analysis feature, capable of calculating the following parameters from waveforms:

①　Peak Current

②　Statistics of circuit breaker operations (number of opening and closing) and failure counts

③　Comparative analysis of measurement results across different channels with standard waveforms, and historical measurement data

 

v  Advanced features

Ø  Features tri-phase synchronism detection function.

Ø  Features initial disengagement time detection function.

Ø  Storage Current Waveform

Ø  Opening and closing stroke

Ø  Equipped with fault diagnosis and analysis capabilities, featuring an expert system based on historical data and logical reasoning.