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Halogenated hydrocarbon insulating gas and application thereof

A technology of insulating gas and halogenated hydrocarbons, applied in the direction of electrical components, switchgear, switchgear settings, etc., can solve the problems of impure sulfur hexafluoride products, large size of ring main unit, low reliability, etc. Sensitivity, improved reliability, good economical effect

Inactive Publication Date: 2017-05-31
BEIJING HEROSAIL POWER SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Certain toxic products produced by sulfur hexafluoride gas in electrical equipment when high-temperature arcs occur
[0006] 2. Sulfur hexafluoride products are impure, and contain highly toxic sub-sulfur fluoride, hydrogen fluoride and other toxic gases when they leave the factory
[0013] Third, there is also a ring network cabinet filled with dry air or nitrogen on the market, but the insulation strength of air and nitrogen is small, which means that the size of the ring network cabinet is relatively large and the reliability is not high

Method used

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  • Halogenated hydrocarbon insulating gas and application thereof
  • Halogenated hydrocarbon insulating gas and application thereof
  • Halogenated hydrocarbon insulating gas and application thereof

Examples

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Effect test

Embodiment 1

[0049] A halogenated hydrocarbon insulating gas, the composition of which includes:

[0050] CF 3 I 15%;

[0051] The rest is N 2 .

Embodiment 2

[0053] A halogenated hydrocarbon insulating gas, the composition of which includes:

[0054] CF 3 I 30%;

[0055] The rest is N 2 .

Embodiment 3

[0057] A halogenated hydrocarbon insulating gas, the composition of which includes:

[0058] CF 3 I 45%;

[0059] The rest is N 2 .

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Abstract

The invention discloses halogenated hydrocarbon insulating gas and application thereof. The halogenated hydrocarbon insulating gas comprises halogenated hydrocarbon gas and the balance auxiliary gas. A volume fraction of the halogenated hydrocarbon gas is 15%-75%. Metal caps are arranged on the outer surfaces of disc springs in isolating blades of isolating switches of ring main units with the halogenated hydrocarbon insulating gas. The halogenated hydrocarbon insulating gas and the application have the advantages that sulfur hexafluoride gas can be replaced by the halogenated hydrocarbon insulating gas, the insulating strength of the halogenated hydrocarbon insulating gas is equivalent to the insulating strength of sulfur hexafluoride or even is higher than the insulating strength of the sulfur hexafluoride gas, the halogenated hydrocarbon insulating gas has certain arc extinction capacity, GWP (global warming potential) of CF3I (iodotrifluoromethane) in the halogenated hydrocarbon insulating gas is lower than 5 and is nearly equivalent to the GWP of carbon dioxide, and the exist life cycle of the halogenated hydrocarbon insulating gas in atmosphere is 0.005 year.

Description

technical field [0001] The invention relates to the technical field of insulating gas, in particular to a medium-voltage electrical product filled with halogenated hydrocarbon insulating gas. Background technique [0002] Sulfur hexafluoride gas has a history of one hundred years. It is an artificial inert gas synthesized by two French chemists, Moissan and Lebeau, in 1900. Around 1940, the US military used it for the Manhattan Project (nuclear military), and it was provided in 1947. commercial. Sulfur hexafluoride gas is mainly used in the power industry. Sulfur hexafluoride gas is used in 4 types of electrical equipment as insulation and / or arc extinguishing; SF6 circuit breakers and GIS (here refers to SF6 closed Type combination electrical appliances, known internationally as "gas insulated switchgear"), sulfur hexafluoride load switchgear, sulfur hexafluoride insulated transmission pipelines, sulfur hexafluoride transformers and sulfur hexafluoride insulated substation...

Claims

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Application Information

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IPC IPC(8): H02B13/055H02B13/045
CPCH02B13/055H02B13/045
Inventor 张炜孙帅董帅李海泉
Owner BEIJING HEROSAIL POWER SCI & TECH
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