Intelligent photovoltaic prefabricated-type substation high-voltage bus protection device and using method thereof

A technology for prefabricated substations and high-voltage busbars, applied in the field of substations, can solve problems such as power outages, achieve precise action, enhance anti-interference ability, and improve reliability and safety.

Inactive Publication Date: 2017-09-05
上海金友金弘智能电气股份有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

When the bus voltage is too large, it will cause a large-scale blackout accident

Method used

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  • Intelligent photovoltaic prefabricated-type substation high-voltage bus protection device and using method thereof
  • Intelligent photovoltaic prefabricated-type substation high-voltage bus protection device and using method thereof

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-2 According to the above technical solution, the present invention provides a smart photovoltaic prefabricated substation high-voltage busbar protection device, including a detection sensor 1, an extended control unit 2, a main busbar protection unit 3, a busbar arc monitor 4, a first fuse 5 and The second fuse 6, the detection sensor 1 is installed on one side of the busbar arc monitor 4, the detection sensor 1 is connected with the busba...

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Abstract

The invention discloses an intelligent photovoltaic prefabricated-type substation high-voltage bus protection device and a using method thereof. The intelligent photovoltaic prefabricated-type substation high-voltage bus protection device comprises a detection sensor, an expansion control unit, a bus protection main unit, a bus arc light monitor, a first fuse and a second fuse, wherein the detection sensor is arranged at one side of the bus arc light monitor; the detection sensor is connected with the bus protection main unit through the expansion control unit; the output end of an output control unit is electrically connected with the first fuse and the second fuse; the first fuse and the second fuse are serially connected; and the first fuse and an electrical component are serially connected. A new principle of a principal criterion plus an auxiliary criterion is adopted, bus fault can be quickly and accurately judged and the fault is cut off; influences on fault judgment by external light are overcome, the purpose of accurate actions is achieved, the anti-interference ability is enhanced, the reliability and the safety are improved, the whole device is concise in structure, the mounting and the use and the maintenance are convenient; and the use is simple.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to an intelligent photovoltaic preinstalled substation high-voltage bus protection device and a method for using the same. Background technique [0002] Substation, a place where voltage is changed. In order to transmit the electric energy from the power plant to a distant place, the voltage must be raised to become high-voltage electricity, and then the voltage is lowered as needed near the user. This work of raising and lowering the voltage is done by the substation. The main equipment of substations are switches and transformers. According to the size, the small ones are called substations. A substation is larger than a substation. Substation: generally a step-down substation with a voltage level below 110KV; substation: including "step-up and step-down" substations of various voltage levels. A substation is a power facility in the power system that transforms voltage, re...

Claims

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Application Information

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IPC IPC(8): H02H7/22H02H7/26G01R31/12G01R31/00
CPCG01R31/00G01R31/1218H02H7/22H02H7/26
Inventor 常勇李庆平管同平牛群领胡顺龙乐殊潘静
Owner 上海金友金弘智能电气股份有限公司
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