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Intelligent reclosing controller

A reclosing controller, intelligent technology, applied in the direction of automatic disconnection emergency protection devices, electrical components, circuit devices, etc., can solve problems such as trouble, low reliability, and user loss

Active Publication Date: 2012-06-27
SUNRISE GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Existing vacuum circuit breakers generally use springs to break and close the line. When the power grid fails, the vacuum circuit breaker will automatically open for protection. However, some faults in the power grid are transient faults (such as lightning strikes), and some are Due to the opening caused by the power failure of the superior power supply line, in this case, it is necessary to wait for the staff of the power department to analyze the fault and perform manual closing, which is troublesome, resulting in a long power outage for users and bringing losses to users
[0004] At present, there are also a small number of products with automatic reclosing function, but this kind of product cannot obtain the current state of the power grid, and intelligently judge the situation of the power grid fault. If the automatic reclosing is carried out blindly, it may cause the fault to expand and cause serious consequences. , low reliability

Method used

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] As shown in the figure, the present invention provides an intelligent reclosing controller, including a central processing unit, a power module, a drive module, voltage transformers respectively arranged at both ends of the switch, and three-phase current transformers connected in series on the switch, The voltage transformers are installed at both ends of the three-phase high-voltage AC switchgear, and are used to respectively detect the three-phase voltages of the grid lines connected to the two ends of the switch. One or two voltage transformers can be installed at each end as required. A current transformer is connected in series with the switch to detect whether the switch is closed. The voltage transformer and the current transformer are connected to the sampling channel in the central processing unit through the signal a...

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Abstract

The invention provides an intelligent reclosing controller, which comprises a central processing unit, a power module, a drive module, voltage transformers arranged at two ends of a switch respectively and three-phase current transformers connected on the switch in series. The voltage transformers and the three-phase current transformers are connected with a sampling channel in the central processing unit through a signal amplification and filtering module, the voltage transformers and the three-phase current transformers are further connected with the central processing unit through a metering circuit module, and the power module and the drive module are both connected with the central processing unit. The intelligent reclosing controller can obtain current power grid states and perform automatic reclosing and breaking intelligently and has high reliability.

Description

Technical field: [0001] The invention relates to an electric power supply system, in particular to an intelligent closing controller for a high-voltage vacuum circuit breaker on an outdoor column. Background technique: [0002] Outdoor post-mounted high-voltage vacuum circuit breaker is a three-phase high-voltage AC switchgear, which is mainly used in power grids for breaking, breaking, closing load current, overload current, short-circuit current and grounding current, suitable for substations, industrial and mining enterprises, urban and rural areas The power grid is used for section protection and control. [0003] Existing vacuum circuit breakers generally use springs to break and close the circuit. When the power grid fails, the vacuum circuit breaker will automatically open for protection. However, some faults in the power grid are transient faults (such as lightning strikes), and some are Due to the opening caused by the power failure of the superior power supply lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/26H02H3/06
Inventor 林爱民欧林龙黄宝福
Owner SUNRISE GRP CO LTD
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