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High-capacity overvoltage limiter core

A limiter, overvoltage technology, applied in the direction of overvoltage protection resistors, varistors, etc., can solve the problems of large structure size, reduced equipment footprint, and high equipment cost, so as to reduce equipment cost and reduce equipment costs. Small footprint and compact structure

Inactive Publication Date: 2015-05-06
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a compact large-capacity overvoltage limiter core, which solves the problems of excessively large structure size and high equipment cost of the existing large-capacity overvoltage limiter, and reduces the footprint of the equipment.

Method used

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to figure 1 , figure 2 , figure 1 It is a layout diagram of even-numbered parallel components, including high-voltage terminal 3, connecting wire 1 4, insulating pad 5, connecting wire 2 6, resistor sheet 7, and low-voltage terminal 8; figure 2 It is a layout diagram of odd-numbered parallel components, including high-voltage terminal 3, connecting wire 1 4, connecting wire 2 6, resistance sheet 7, and low-voltage terminal 8.

[0018] The limiter core is composed of parallel elements stacked in series. The parallel elements are divided into odd column parallel element 1 and even column parallel element 2. The parallel element is provided with high voltage end 3 and low voltage end 8; 2. It is composed of a number of resistor sheets 7 stacked in series, and the two ends of every two adjacent resistor sheets 7 are connected by...

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Abstract

The invention provides a high-capacity overvoltage limiter core. The limiter core is formed by serially laminating parallel elements, wherein the parallel elements are respectively provided with a high voltage end and a low voltage end; each parallel element consists of a plurality of resistor sheets which are laminated in series, and the plurality of resistor sheets are electrically connected in parallel by virtue of a conducting wire I and a conducting wire II; the parallel elements are divided into parallel elements of an odd number and parallel elements of an even number, the resistor sheets in the parallel elements are divided into parallel resistor posts of an odd number and parallel resistor posts of an even number by virtue of the different distribution of the connecting conducting wire I, an insulation pad and the connecting conducting wire II, and the overvoltage limiter core of different voltage grades can be formed by serially laminating a plurality of parallel elements; while the discharge current capacity of the overvoltage limiter core is increased, the structure is compacter, the floor occupation area of the device can be reduced, a limiter is safe and reliable to operate, an electrical appliance of a power system can be prevented from suffering from the damage of the overvoltage, the development requirement of the power system can be met, and the safety operation of the power system can be guaranteed.

Description

technical field [0001] The invention relates to the field of overvoltage limiters, in particular to a core body of a large-capacity overvoltage limiter. Background technique [0002] The overvoltage limiter is an important protective device of the power system, which is used to protect the electrical equipment of the power system from damage caused by overvoltage. The characteristics of the overvoltage limiter determine the insulation of the power system and the cost of the equipment. With the development of the power system, it is very important to increase the flow capacity of the overvoltage limiter and improve its operation reliability for the insulation coordination of the power system. . The method of increasing the flow capacity of the overvoltage limiter is currently to increase the size of the resistor sheet or directly connect the multi-column resistor sheet columns in parallel in the mechanical structure. This method will increase the structure size, increase th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C7/12
Inventor 何计谋苗发金祝嘉喜李小社
Owner CHINA XD ELECTRIC CO LTD
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