The Research and Optimum Design for Vacuum Circuit Breaker with Spring ...
breaker transmission crutch arm 4-the shaft of circuit breaker 5-close-open spring 6- output crutch arm mechanism 7-the linked plate of transmission 8-the shaft of mechanism 9-roller 10-cam 11-the shaft of energy storage 12-the spring of energy storage Figure1 for the 40.5kV vacuum circuit breaker which is in the closing process and is about to ...
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Fault Diagnosis of Circuit Breaker Energy Storage Mechanism …
Abstract: The reliable storage of spring potential energy is a prerequisite for ensuring the correct closing and opening operations of a circuit breaker. A fault identification …
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(PDF) Mechanical Condition Identification and Prediction of Spring ...
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-formance of ...
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CN114334570B
The invention discloses an energy storage closing structure of a circuit breaker and the circuit breaker thereof, relates to the technical field of circuit breakers, and mainly...
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Fault Diagnosis of Circuit Breaker Energy Storage Mechanism …
Abstract: The reliable storage of spring potential energy is a prerequisite for ensuring the correct closing and opening operations of a circuit breaker. A fault identification method for circuit breaker energy storage mechanism, combined with the current-vibration signal entropy weight characteristic and grey wolf optimization-support vector machine (GWO-SVM), …
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Instruction manual VD4 Vacuum circuit-breaker – 36/40.5 kV
5.2 Assembly / installation of the circuit-breaker on a withdrawable part 20 6 Commissioning / Operation 21 6.1 Note on safety at work 21 6.2 Preparatory activities 21 6.3 Operation of the circuit-breaker 21 6.3.1 Charging of the spring-energy storage mechanism 21 6.3.2 Closing and opening 21 6.3.3 Run-on block 22 7 Maintenance 25
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Fault Diagnosis of Circuit Breaker Energy Storage Mechanism …
The reliable storage of spring potential energy is a prerequisite for ensuring the correct closing and opening operations of a circuit breaker. A fault identification method for circuit breaker ...
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ZN63A-12(VS1) Indoor High-Voltage AC Vacuum Circuit Breaker
Energy-storage motor Resistance Closing trip coil Opening trip coil Locked electromagnetic micro coil (optional) Travel switch (switched after energy storage of the closing spring) Auxiliary switch 8-ONs and 8-OFFs (switched the ON/OFF state) Notes: 1. The circuit breaker is at the opening and non-energy-storage state. 2. The polarities marked ...
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4 common faults of vacuum circuit breakers
3. The spring operating mechanism closing energy storage circuit failure. Failure phenomenon. The opening operation cannot be realized after closing; The energy storage motor does not stop running, and even causes the motor coil to overheat and damage. Cause Analysis
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Optimal design of energy storage spring in circuit breaker based …
The results show that the improved particle swarm optimization algorithm can achieve miniaturization and better breaking performance of circuit breakers. Key words: …
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Study on Closing Spring Fatigue Characteristics of High Voltage Circuit …
One of the most causing closing fault of high voltage circuit breaker is closing spring failure. In order to avoid such closing fault, this paper analyzed the relationship between...
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Analysis of Strength and Fatigue Life of Breaker Detent
The fatigue life analysis based on the S-N curve shows that the closing detents, opening detents and energy storage retention detents will not suffer fatigue damage, and the minimum fatigue life of the closing retention detents is 1.74×10 4 times, which meets the requirements of mechanical life of circuit breaker operating mechanism.
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Analysis of high-voltage circuit breaker closing and opening action ...
Considering the importance and limited downtime of 500kV and above lines, this paper proposes a customized non-contact monitoring method based on the actual operating …
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Circuit breaker closing energy storage work steps
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 spring of the 126kV …
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Study on Closing Spring Fatigue Characteristics of High Voltage …
One of the most causing closing fault of high voltage circuit breaker is closing spring failure. In order to avoid such closing fault, this paper analyzed the relationship between...
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Fault Diagnosis of Circuit Breaker Energy Storage Mechanism …
Abstract: The reliable storage of spring potential energy is a prerequisite for ensuring the correct closing and opening operations of a circuit breaker. A fault identification method for circuit breaker energy storage mechanism, combined with the current-vibration signal entropy weight characteristic and grey wolf optimization-support vector ...
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Analysis of Stress and Fatigue Life of Circuit Breaker Opening and ...
A three-dimensional model of the opening spring and closing spring of the 126kV circuit breaker was established through COMSOL, and the stress and strain distributions in the stored energy …
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The dynamic characteristics and energy storage state detection …
The closing spring is the only energy source of the high-voltage circuit breaker, which is an important element to ensure the normal operation of the high-voltage circuit breaker.
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Optimal design of energy storage spring in circuit breaker based …
The results show that the improved particle swarm optimization algorithm can achieve miniaturization and better breaking performance of circuit breakers. Key words: energy storage spring, Particle Swarm Optimization (PSO) algorithm, cloud model, catfish effect
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Analysis of high-voltage circuit breaker closing and opening …
Considering the importance and limited downtime of 500kV and above lines, this paper proposes a customized non-contact monitoring method based on the actual operating parameters and structure evaluation of a hydropower station circuit breaker, which realizes the real-time monitoring of key parameters such as displacement stroke signal, coil ...
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A New Test Method of Circuit Breaker Spring Telescopic …
the action or energy storage process of the circuit breaker operating mechanism spring; Image preprocessing are used to improve the quality of the image to be analyzed, which reduces the interference of field light change and camera electronic noise on the captured images, and influence on the recognition accuracy of the target on the spring; then a suitable region of …
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Analysis of Strength and Fatigue Life of Breaker Detent
The fatigue life analysis based on the S-N curve shows that the closing detents, opening detents and energy storage retention detents will not suffer fatigue damage, and the minimum fatigue …
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Analysis of Stress and Fatigue Life of Circuit Breaker Opening and ...
A three-dimensional model of the opening spring and closing spring of the 126kV circuit breaker was established through COMSOL, and the stress and strain distributions in the stored energy state and the non-stored energy state were obtained through finite element calculation. The results show that the stress and strain of the inner ring of the ...
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CN114334570A
The invention discloses an energy storage switching-on structure of a circuit breaker and the circuit breaker, relating to the technical field of circuit breakers and mainly solving...
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Circuit breaker closing energy storage work steps
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 spring of the 126kV circuit breaker was established through COMSOL, and the stress and strain distributions in the stored energy state and the non-stored energy state were obtained …
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Fault Diagnosis Method of Energy Storage Unit of Circuit Breakers …
Current research on diagnosing high-voltage circuit breaker (HVCB) operating mechanisms is mainly based on opening and closing coil current signals, contact stroke-time characteristic curves and vibration signals.
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