Electrical apparatus thermal monitoring

A technology for electrical equipment and monitoring equipment, applied in the field of thermal monitoring of electrical equipment, can solve problems such as falling, overheating, and aggravating performance

Pending Publication Date: 2021-11-19
SCHNEIDER ELECTRIC IND SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These conductors and connections often degrade over time (for example, increased conductor or contact resistance due to corrosion or oxidation, which may be exacerbated by high temperature operation, which may be caused by excessive loading), And this degradation can lead to further overheating (due to higher conductor / connection resistance), which in turn exacerbates performance degradation

Method used

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  • Electrical apparatus thermal monitoring
  • Electrical apparatus thermal monitoring
  • Electrical apparatus thermal monitoring

Examples

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Embodiment Construction

[0022] Throughout the specification and claims, the following terms have at least the meanings explicitly associated therewith, unless the context dictates otherwise. The meanings identified below do not necessarily limit these terms, but merely provide illustrative examples of these terms.

[0023] The phrase "embodiments" as used herein does not necessarily refer to the same embodiment though. In addition, the meanings of "a", "an" and "the" include pluralities; thus, for example, "an embodiment" is not limited to a single embodiment, but refers to one or more embodiments. Similarly, the phrase "one embodiment" does not necessarily refer to the same embodiment and is not limited to a single embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or" unless the context clearly dictates otherwise. The term "based on" is not exclusive and allows for being based on other factors not described unless the context clearly dictate...

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PUM

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Abstract

Some embodiments provide for monitoring the condition of an electrical apparatus based on an estimated temperature of a conductor in the electrical apparatus, and comprise receiving a measured temperature value from a first thermal sensor disposed in the electrical apparatus and configured to sense temperature at a location separated from the conductor by an insulator, generating an estimated conductor temperature value based on applying a non linear model to the measured temperature value, and monitoring the condition of the electrical apparatus based on the estimated conductor temperature. The non linear model may comprise a Hammerstein Wiener model.

Description

technical field [0001] The present disclosure relates to thermal monitoring of electrical distribution systems, and more particularly, to monitoring the temperature of conductors embedded in the insulation of electrical components of electrical distribution systems, some embodiments of which are particularly suitable for use in high voltage (HV) and / or medium voltage Monitoring and / or preventing failure of current-carrying parts and / or conductive interfaces between them in (MV) environments, e.g. in MV switchgear, controlgear and power transformers . Background technique [0002] Temperature monitoring in electrical systems can be an important indicator of component life, likelihood of component failure, and / or component repair requirements. For example, high temperature operation of medium voltage switchgear, controlgear and power transformers is often closely related to increased probability of failure and correspondingly reduced operating life (eg, reduced mean time to f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G01K7/02G01K7/22G01K1/024
CPCG01K13/00G01K7/02G01K7/22G01K1/024G01M99/002G01K7/42H02J13/00002G01K1/02G01K1/14G06N5/02
Inventor V.费拉罗M.塞奇A.迪戈
Owner SCHNEIDER ELECTRIC IND SAS
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