Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus

A technology of fluid composition, electrical equipment, applied in the field of measuring devices

Inactive Publication Date: 2017-12-05
HITACHI ENERGY SWITZERLAND AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It was found that certain properties of such insulating fluid mixtures are mandatory for the safe operation of electrical equipment

Method used

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  • Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus
  • Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus
  • Method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus

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Embodiment Construction

[0079] The description of the invention does not include the electrical installation (GIS) itself, since many embodiments of the latter are well known and do not contribute to this description. Accordingly, the principles described below apply to using the invention in various switching devices, for example of the type mentioned at the outset.

[0080] In the following, the same reference numerals denote structurally or functionally identical or similar elements of various embodiments of the present invention. For the purposes of this disclosure, the fluid used in electrical equipment, either encapsulated or unencapsulated, may be SF 6 A gas or any other dielectric insulating medium, which may be gaseous and / or liquid, and in particular may be a dielectric insulating gas or an arc extinguishing gas. Such dielectric insulating media may, for example, include media comprising organofluorine compounds selected from the group consisting of fluoroethers, ethylene oxides, fluoroami...

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Abstract

The invention relates to a method for determining a property of a fluid component of a fluid present in a compartment of an electrical apparatus by means of a measurement device (1) arranged outside the compartment and comprising a chamber (2) for receiving a quantity of the fluid from the compartment. Amongst other steps of the method, an optical path (5) in the chamber (2) is illuminated by a light source (3) and a first intensity (I0) of light is measured by a light detector (4). Then fluid is released from the compartment into the chamber (2) and a second intensity (Ix) of light is measured. Based on these measurements the property of the fluid component is determined.

Description

technical field [0001] The invention relates to the field of medium and high voltage switchgear technology, and to a method for optically determining the properties of the fluid composition of a fluid present in a compartment of an electrical device, and to a measuring device for carrying out the method, in particular For measuring properties of insulating gas and / or insulating gas components present in a high voltage switchgear (according to independent claims). Background technique [0002] Electrical switching devices are well known in the field of medium and high voltage switching applications. They are used, for example, to interrupt the current flow in the event of an electrical fault. As an example, a circuit breaker filled with a dielectric insulating fluid has the task of opening the contacts and keeping them away from each other in order to avoid current flow even at high potentials originating from the electrical fault itself. [0003] Dielectric insulating flui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504G01N21/33
CPCG01N21/33G01N21/3504G01N2021/354H02B13/0655G01N2201/0221G01N2201/062G01N21/85G01N2021/1723H01H33/563H01H2033/566H02B13/055
Inventor A.克拉梅T.A.鲍尔
Owner HITACHI ENERGY SWITZERLAND AG
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