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Oil insulation high voltage contactor

A high-voltage contactor and oil-insulated technology, applied in the field of high-voltage power, can solve problems such as carbonization, achieve the effect of increasing rated current and voltage, and ensuring long-term stable operation

Inactive Publication Date: 2019-03-29
安徽森力汽车电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the insulating oil will be carbonized during the long-term arc extinguishing process.

Method used

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  • Oil insulation high voltage contactor
  • Oil insulation high voltage contactor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , an oil-insulated high-voltage contactor, including a cup-shaped iron shell 3, a rectangular sealing ring 4, an oil passage partition wall 7, a thermal expansion joint 9, a one-way pressure valve 11, a thermal expansion joint 2 12, a breathing chamber one-way pressure valve 13, Filter chamber one-way pressure valve 16, oil filter element 19, respirator 21, upper cover 22, partition 23 and insulating casing 24; the inside of the insulating casing 24 is divided into upper chamber, middle chamber and lower chamber by partition 23 ;

[0027] The upper chamber is provided with a cup-shaped iron shell 3 and an oil passage partition wall 7; a gap is provided between the cup-shaped iron shell 3 and the insulating shell 24, which serves as an oil outlet channel; the cup-shaped iron shell 3 There is a gap between it and the oil passage partition wall 7, which acts as an oil return passage; further, in order to prevent the communication between the oil outlet passag...

Embodiment 2

[0035] A high-voltage electrical device, including the oil-insulated high-voltage contactor described in Embodiment 1.

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PUM

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Abstract

The invention discloses an oil insulation high voltage contactor, mainly refers to the field of high voltage electric power equipment, is applied to a frequent switch of the high voltage electric power equipment and solves problems of relatively low gas insulation material insulation property and relatively low heat radiation. The high voltage contactor is characterized in that a cup-shaped iron casing, an oil passage wall, a respirator, a partition plate and an insulation casing, wherein the respirator is fixed in the middle of the insulation casing, the insulation casing is internally divided by the partition plate into an upper chamber, a middle chamber and a lower chamber, the upper chamber is internally provided with the cup-shaped iron casing, the oil passage wall, a first thermal expansion joint and a single-way pressure valve, the middle chamber is divided by the partition plate into a respiration chamber and an oil outlet chamber, the respiration chamber is internally providedwith the respirator, a respiration chamber single-way pressure valve and a second expansion joint, the lower chamber is divided by the partition plate into a filter core chamber and a lower chamber oil return passage, and the filter core chamber is internally provided with a filter chamber single-way pressure valve and an oil filter core. The high voltage contactor is advantaged in that the insulation oil is filtered, and stable and long-term operation is guaranteed.

Description

technical field [0001] The invention relates to the field of high-voltage electric power, in particular to an oil-insulated high-voltage contactor. Background technique [0002] High-voltage contactor is a common switching device, which is mainly used to frequently connect or break the AC main circuit and can be controlled remotely. Its main control object is a motor or a transformer. [0003] Most of the high-voltage contactors below 1500V use gas as the insulating medium between the dynamic and static contacts. However, as the current and voltage in this field increase, the lower insulation performance and lower heat dissipation performance of the gas cannot meet the use requirements gradually. . Due to the high insulation performance and high heat dissipation performance of insulating oil, it can be a better substitute for gas. However, the insulating oil will be carbonized during the long-term arc extinguishing process. Carbonized particles pollute the insulating oil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/02H01H33/22H01H33/55H01H50/02
CPCH01H33/021H01H33/22H01H33/55H01H50/023
Inventor 程毛宏翟平
Owner 安徽森力汽车电子有限公司