A fault identification method for circuit breaker energy storage mechanism, combined with current–vibration signal entropy weight characteristic and Grey Wolf Optimization–Support Vector

Fig. 1. (a) A circuit breaker electrical energy storage module; (b) Drop bolt of a breaker mechanism. 3. Experiment Analysing 3.1 Macroscopic examination and analysis of fracture A comprehensive test analysis is carried out on the failed bolt samples. The2 (a

[1] Wang Lianpeng 2005 Optimal design and analysis of the spring actuator for vacuum circuit breaker High Voltage Apparatus 41 166-167 etc. Google Scholar [2] Shu Fuhua 2007 Closing switch spring reliability analysis and improvement of high voltage circuit breaker operating mechanisms High Voltage Apparatus 43 368-370

While traditional AC mechanical circuit breakers can protect AC circuits, many other DC power distribution technologies, such as DC microgrids (MGs), yield superior disruption performance, e.g., faster and more reliable switching speeds. However, novel DC circuit breaker (DCCB) designs are challenging due to the need to quickly break high

In this paper,based on a fault analysis of 220 kV GIS disconnector and the test data of other similar equipment,the mechanical characteristics of this type of GIS disconnector are

A fault identification method for circuit breaker energy storage mechanism, combined with the current–vibration signal entropy weight characteristic and grey wolf

In this experiment, 100 circuit breaker mechanical failure sample signals of 4 types of circuit breaker mechanical failure, including normal state, are obtained. In this subject, Gaussian white noise with a signal-to-noise ratio of 20 dB–40 dB is added to the measured signals of the original circuit breaker mechanical failure test samples.

5. Conclusion. The circuit breaker oil and gas pipeline is closel y connected with its hydraulic mechanism and SF6. insulation system. It is a pipeline for oil and gas transmission and supervision

Abstract: Energy storage spring is an important component of the circuit breaker''s spring operating mechanism. A three-dimensional model of the opening spring and closing

A non-contact testing method of spring deformation characteristics based on image matching tracking technology is proposed: the high-speed camera is utilized to capture the image sequence of

According to the above analysis, the failure of the breaker bolt mainly exists in the following two aspects: (1) The failed bolt not only bears static load, but also withstands the pulsating load caused by external pressure and temperature changes. Since the circuit breaker adopts the spring mechanism, the operating work is large, and the

Energy-storage technologies based on lithium-ion batteries are advancing rapidly. However, the occurrence of thermal runaway in batteries under extreme operating conditions poses serious safety concerns and potentially leads to severe accidents. To address the detection and early warning of battery thermal runaway faults, this study conducted a

Through a macro inspection, chemical composition analysis, hardness inspection, graphite carbon inspection and energy spectrum analysis, the reason for the break of the energy storage spring of the circuit breaker in a 110kV substation are analyzed. The results

Root causes. 1. Introduction. Circuit breaker (CB), specially associated to Gas insulated switchgear (GIS) [1], they are used in high voltage substation (VHS), because, they involve less space and are easy to maintain [2]; besides, they have high reliability [3] and good environmental adaptability too [4].

Aiming at the problem that some traditional high voltage circuit breaker fault diagnosis methods were over-dependent on subjective experience, the accuracy was not very high and the generalization ability was poor, a fault diagnosis method for energy storage mechanism of high voltage circuit breaker, which based on Convolutional

A fault identification method for circuit breaker energy storage mechanism, combined with the current-vibration signal entropy weight characteristic and

In order to accurately evaluate the fault severity of energy storage spring, a fault severity evaluation method of energy storage spring of circuit breaker based on

quently, fatigue f ailure of circuit breaker energy storage spring has drawn a series of attentions [16], [17]. Surface decarburization has been proved to influence the service per

Screw mechanism fixing bolt fracture failure of a 500kV circuit breaker spring mechanism running process. By analyzing the installation position and operating environment, and by

The circuit breaker cannot be opened remotely; Can not be opened manually on the spot; In the event of an accident, the relay protection operates, but the circuit breaker cannot be separated. Cause Analysis. The opening operation circuit is disconnected; The opening coil is broken;

Abstract Through a macro inspection, chemical composition analysis, hardness inspection, graphite carbon inspection and energy spectrum analysis, the reason for the break of the energy storage spring of the circuit breaker in a 110kV substation are analyzed. The

Fuzzy-probabilistic analysis [63] (2014) Agglomerative Hierarchical Clustering (AHC), Data mining [21] (2015) TC, Coil current Neural network and support vector machine (SVM) [18] (2019) empirical

on Mechanical Fault Diagnosis Methods for High-voltage Circuit Breakers | Mechanical failure is still the reason for the break of the energy storage spring of the circuit breaker in a 110kV

Download scientific diagram | Flow chart of energy storage mechanism diagnosis from publication: Fault Diagnosis of Circuit Breaker Energy Storage Mechanism Based on Current-Vibration Entropy

Aiming at the problem of energy storage unit failure in the spring operating mechanism of low voltage circuit breakers (LVCBs). A fault diagnosis algorithm based on an improved

Abstract Through a macro inspection, chemical composition analysis, hardness inspection, graphite carbon inspection and energy spectrum analysis, the reason for the break of

Through a macro inspection, chemical composition analysis, hardness inspection, graphite carbon inspection and energy spectrum analysis, the reason for the

In traditional control circuits, actual volt-amperes (VA) are applied/injected to the command coils. However, when testing magnetically-actuated vacuum circuit breakers, only a "lower power" voltage signal is required. Instead, we need to interface with "Remote TRIP" and "Remote CLOSE" pins (5, 7, and 9) with the associated control

[3] Liu Y, Zhang G, Zhao C, et al. Mechanical Condition Identification and Prediction of Spring Operating Mechanism of High Voltage Circuit Breaker [J]. IEEE Access, 2020, 8:210328-210338. [4] Jiang W, Liu X, Chen H, et al. Electromagnetic Buffer Characteristics of Operating Mechanism of Vacuum Circuit Breaker[C]// 2020 IEEE International

The opening and closing time test of 500kV high voltage circuit breaker can evaluate the mechanical characteristics and three-phase synchronization performance of the circuit breaker.

In recent years, vibration-based intelligent fault diagnosis of high-voltage circuit breakers (HVCBs) exhibits excellent performance. It requires a reliable machine learning method to develop an automatically diagnostic

Fault Diagnosis of Circuit Breaker Energy Storage Mechanism Based on Current-Vibration Entropy Weight Characteristic and Grey Wolf mechanical failure of the circuit breaker during operation,