Method for monitoring surface discharge of organic resin insulating medium in sulfur hexafluoride electrical equipment with cs2 as characteristic gas

Abstract

The invention discloses a method for monitoring the surface discharge of an organic resin insulating medium in sulfur hexafluoride electrical equipment with CS2 as a characteristic gas, collecting gas samples in the SF6 electrical equipment for qualitative or quantitative detection of CS2, and when the presence of CS2 is detected, The organic resin insulating medium is attacked by electric discharge. This method performs CS2 qualitative or quantitative detection on the gas in SF6 electrical equipment to judge whether the organic resin insulation in sulfur hexafluoride (SF6) electrical equipment is corroded by discharge, the detection is stable, the data is accurate, and it is suitable for different SF6 electrical equipment. universality.

Description

technical field [0001] The invention relates to the field of monitoring the insulation state of electrical equipment, in particular to a CS 2 Monitoring sulfur hexafluoride (SF 6 ) Method for surface discharge of organic resin insulating medium in electrical equipment. Background technique [0002] Sulfur hexafluoride (SF 6 ) Electrical equipment uses a large number of organic resin insulating media such as disc insulators, and once the surface of these media is discharged, it will cause irreversible damage, and eventually cause insulation breakdown, endangering equipment and personal safety. Therefore, in SF 6 During the use of electrical equipment, it is necessary to monitor its insulation state to avoid dangerous situations. [0003] Traditional for SF 6 The monitoring of the insulation state of electrical equipment includes ultra-high frequency (UHF) method and chemical composition analysis method. UHF method by detecting SF 6 The discharge signal inside the elect...

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Problems solved by technology

[0002] Sulfur hexafluoride (SF 6 ) A large number of organic resin insulating media such as disc insulators are used in electrical equipment, and once the surface of these media is discharged, it will cause irreversible damage, and eventually cause insulation breakdown, endangering equipment and personal safety

Routinely monitored gases include SO 2 , SO 2 f 2 Such as sulfuryl gas, but such gases basically appear in all types of discharges, and it is impossible to judge whether the discharge is related to the organic resin insulating medium based on them

Instead use CF 4 , CO, CO 2 Wait for the presence of C-containing substances to judge SF 6 There are also problems with organic resin insulation defects inside electrical equipment, because their formation may be related to the organic resin insulation medium. In the production of SF 6 In the process, it is inevitable that the CF 4 , CO, CO 2 Introduced into GIS

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