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Sulfur hexafluoride circuit breaker protection system and method

A technology of sulfur hexafluoride and sulfur hexafluoride gas, which is applied in the direction of automatic disconnection emergency protection device, emergency protection circuit device, circuit device, etc., can solve problems such as inability to work efficiently in real time

Inactive Publication Date: 2019-06-18
HARBIN UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The existing circuit breakers work in a simple way, mainly relying on the detection of high voltage values, lack of information acquisition of circuit breaker environmental changes, and cannot work efficiently in real time

Method used

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  • Sulfur hexafluoride circuit breaker protection system and method
  • Sulfur hexafluoride circuit breaker protection system and method

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Embodiment Construction

[0014] Exemplary embodiments of the present invention will hereinafter be described with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in the specification. It should be appreciated, however, that many implementation-specific decisions must be made in the development of any such practical embodiment in order to achieve the developer's specific goals, such as compliance with those constraints associated with the system and business, and these Restrictions may vary from implementation to implementation. Furthermore, it should also be appreciated that while development work can be very complex and time consuming, such development work would be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0015] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only device structures and / or p...

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Abstract

The invention provides a sulfur hexafluoride circuit breaker protection device. The device comprises a detection box body, a sulfur hexafluoride gas concentration sensor, a gas pressure sensor, a particulate matter sensor, a data information sampling circuit, a circuit board and a relay, wherein the detection box body is arranged at the bottom of a sulfur hexafluoride gas tank; the sulfur hexafluoride gas concentration sensor, the gas pressure sensor and the particulate matter sensor are embedded in the surface of the detection box body and used for detecting corresponding data in a working environment of a circuit breaker; the data information sampling circuit is embedded in the surface of the detection box body and used for collecting the data; the circuit board is arranged on a side wall of the sulfur hexafluoride gas tank, connected with the data information sampling circuit and used for analyzing, comparing and storing the data and sending out a control signal of switch-on / off ofa block relay under the condition that the circuit breaker is judged to break down through comparison; and the relay located on a valve of the circuit breaker. According to the technical scheme, the health condition of the circuit breaker can be judged according to working environment information of the circuit breaker, so that the circuit breaker is ensured to work efficiently.

Description

technical field [0001] The invention relates to the protection of offshore power generation circuit breakers, in particular to a novel protection system and method of a sulfur hexafluoride circuit breaker. Background technique [0002] Considering the particularity of the operating environment of the actual offshore wind turbine, many abnormal faults will occur in the process of power transmission. In the traditional technology, when a fault occurs in the power generation equipment itself or during the transmission process, which endangers the safe operation of the power system, a single voltage sensor is mainly used to detect the high voltage value to warn and display the fault, or directly through the high voltage breakdown Fuse, which directly realizes the on-off of the switch, and directly issues the trip command to the controlled circuit breaker to terminate the development of these events. [0003] The existing circuit breaker has a simple working mode, mainly relies ...

Claims

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Application Information

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IPC IPC(8): H02H5/00
Inventor 孟大伟刘金辉艾萌萌张家铖
Owner HARBIN UNIV OF SCI & TECH
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