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DOI: 10.1587/ELEX.14.20170463 Corpus ID: 195939509 Research of circuit breaker intelligent fault diagnosis method based on double clustering @article{Mengyuan2017ResearchOC, title={Research of circuit breaker intelligent fault diagnosis method based on double clustering}, author={He Mengyuan and Ding Qiao-lin
The handcart circuit breaker aviation connector 7 is reliable and convenient to connect, avoids damage to a circuit breaker and equipment due to mistaken collision, provides the circuit breaker energy storage power supply 10, avoids manual energy storage, reduces workload, saves time, opens a locking loop, enables the circuit breaker to normally
fault identification of circuit breakers based on the circuit breaker vibration signal. The above fault diagnosis research is mainly focused on high-voltage circuit breakers.
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
Traveling wave protection is commonly adopted in DC grids. When a DC line fault occurs, voltage and current traveling waves will be generated at the fault point and propagate to both sides of the line at approximately the speed of light. Due to its high speed, it has good applica-tion in practical engineering.
High Voltage is an open access power engineering journal publishing original and review articles on high-voltage power engineering and high voltage applications. The direct-current circuit breaker (DCCB) is the
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
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
Energy storage spring of Circuit breaker is easy to failure, which will affect the normal operation of power system. Evaluating the severity of the fault of the energy storage spring can eliminate the fault in time and prevent its deterioration. In order to accurately evaluate the fault severity of energy storage spring, a fault severity
performance state evaluation method of circuit breaker energy storage spring mainly judges its Model-Aided Approach for Intelligent Fault Detection System for SF 6 High-Voltage Circuit Breaker
A technology for energy storage motors and circuit breakers, which is applied to high-voltage air circuit breakers, power devices inside switches, circuits, etc., can solve the problems of energy storage motors not meeting the conditions of continuous operation, thermal stability breakdown, damage, etc., to achieve Avoid long-term continuous
Abstract. 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 Sparrow Search Algorithm (ISSA) optimized Backpropagation Neural Network (BPNN) is proposed to improve the operational safety of LVCB.
Compared to traditional AC distribution networks, the DC side of flexible interconnected AC/DC distribution networks has a more intense fault process and greater damage to the system. Therefore, it is necessary to develop more efficient and rapid fault handling mechanisms for the DC side of AC/DC distribution networks. Firstly, based on the end-to
Renewable energy sources such as photovoltaic and wind turbine power generators may make the power grid unstable because of their output fluctuations. Battery energy storage systems (BESSs) are being considered as a countermeasure for this issue. Cascaded H-bridge (CHB) is expected as a promising topology for large capacity BESSs
According to the requirements of the Dongguan Park Demonstration Project, which is a national key special project of AC and DC hybrid distributed renewable energy
A fault identification method for circuit breaker energy storage mechanism, combined with current–vibration signal entropy weight characteristic and Grey Wolf
According to the energy variation of the mechanical transmission in the process of circuit breaker operation which is characterized by acoustic and vibration signals, a new method
The invention discloses a method for reducing fault rate of a 10kV vacuum circuit breaker. The method mainly comprises the following steps of: checking a switch-on holding condition; checking whether a control power supply is in an allowed range; correcting the
DC circuit breaker (DCCB) is one of the most promising solutions for handling DC fault in half‐bridge modular multilevel converter (MMC)‐based DC grid.
A fault identification method for circuit breaker energy storage mechanism, combined with the current-vibration signal entropy weight characteristic and grey wolf
Reliability is a key concern when distributed context-aware applications assist end-users in intelligent environments. As these adaptive applications are never deployed in isolation, delivering failsafe behavior is a non-trivial challenge. Indeed, they usually operate well in the cool comfort of a lab environment, but may not behave as
The utility model discloses a novel intelligent vacuum circuit breaker of 10kV uses detection device, it includes the controller, wireless temperature measurement sensor, vacuum monitoring devices, mechanical properties test sensor, wireless temperature
Abstract: Energy storage spring of Circuit breaker is easy to failure, which will affect the normal operation of power system. Evaluating the severity of
In the hardware design of Battery Energy Storage System (BESS ) interface, in order to meet the high voltage requirement of grid side, integrating 10 kV Silicon-Carbide (SiC) Metal-Oxide
For cable joint with high failure rate, it is necessary to evaluate the health state of cable joint by on-line monitoring of internal characteristic state quantities, which can provide support for cable joint fault warning and fault diagnosis. However, most of the existing cable joint products are not suitable for the online monitoring of running state of cable joint. To
Abstract. In order to monitor the mechanical structure status of high-voltage vacuum circuit breakers in real time and diagnose faults online, a hardware design scheme of an online monitoring device for 10kV vacuum circuit breakers is proposed in this paper. From the perspective of practical application, this design scheme fully considers the
The utility model discloses an energy storage and switching integrated device of a 10kV circuit breaker, which comprises a secondary plug handle and an energy storage power supply module integrated on the secondary plug handle, wherein the energy storage
The utility model discloses a dismounting tool special for an energy storage spring of a 10kV circuit breaker. The dismounting tool comprises two clamp plates, a screw rod and a screw bolt, wherein the upper parts of the clamp plates are provided with arc-shaped clamping grooves, the middle parts of the clamp plates are provided with screw rod
The scale of substations of some small industrial and mining enterprises is not large, generally only 1000~2000kVA. If you choose dry transformer, because the fuse of the load switch-fuse combination electrical appliance produced by the domestic manufacturer is generally the maximum quota current of 125A (it is difficult to pass
High-voltage circuit breaker cannot be closed Case 3: Fault equipment: 5# high voltage switch cabinet (10kV, used to control 1600kV.A power transformer) in a company''s substation. Trouble phenomenon: The electrician on duty transmits power to the 5# high voltage cabinet according to the order of the dispatcher.
Fault Diagnosis Method of Energy Storage Unit of Circuit Breakers Based on EWT-ISSA-BP Tengfei Li 1, Wenhui Zhang 1, Ke Mi 1, Qingming Lin 1, Shuangwei Zhao 2,*, Jiayi Song 2 1 Puneng Electric Power Technology Engineering Branch, Shanghai Hengnengtai Enterprise Management Co., Ltd., Shanghai, 200437, China 2 School of Electrical
As many scientific research institutions and manufacturers continue to deepen single-phase ground faults, they have proposed a new type of environmentally friendly primary and secondary fusion pole-mounted circuit breaker ZW68.
4.1 Application of automatic fault isolation system. The automatic distribution line fault diagnosis and isolation device, which integrates high voltage vacuum circuit breaker and intelligent controller, has the functions of manual and electric operation. The device uses vacuum arc extinguishing and SF6 gas as insulation medium.
Then, the variation of voltage and current characteristics of a 10kV mechanical HVDC circuit breaker under different operating conditions are simulated with Matlab/Simulink.
A vacuum circuit breaker, failure rate technology, applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve problems affecting power supply, circuit breaker failure, and increased welding difficulty, so as to improve service life, reduce failure rate, The effect of ensuring the reliability of power supply
High voltage circuit breaker cannot be closed Case 1: Fault equipment: a 10kV high voltage switch cabinet. Trouble phenomenon: This high-voltage cabinet is used to control a 10kV overhead line. After the line is overhauled, prepare to switch on and send power. When the microcomputer issued a closing command, the circuit breaker had a
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