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Preparation and evaluation method of transformer characteristic gas standard oil samples

A standard oil sample, characteristic gas technology, applied in instruments, scientific instruments, testing dielectric strength, etc., can solve problems such as failure of calibration work, failure to take into account equipment degassing, etc. The effect of accuracy

Active Publication Date: 2016-01-06
陈伟根
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Problems solved by technology

Therefore, when the online chromatograph is calibrated only by standard gas, only the detector of the equipment is calibrated, and the whole process of degassing of the equipment is not taken into account, which leads to the failure of the calibration work

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  • Preparation and evaluation method of transformer characteristic gas standard oil samples
  • Preparation and evaluation method of transformer characteristic gas standard oil samples
  • Preparation and evaluation method of transformer characteristic gas standard oil samples

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Embodiment Construction

[0032] The preparation method and evaluation method of the transformer characteristic gas standard oil sample according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] as attached figure 1 Shown is the flow chart of the preparation method of the transformer characteristic gas standard oil sample disclosed by the present invention.

[0034] The preparation method of transformer characteristic gas standard oil sample comprises the following steps:

[0035] (1) Prepare a standard gas with a set concentration: Based on the IEEEEC57.104-2008 "Guidelines for the Description of Gases Generated by Oil-immersed Transformers" using the dissolved gas concentration in the transformer oil to judge the state of the transformer, the recommended concentration of the standard oil sample is proposed: the standard is adopted Oil sample 1 corresponds to the transformer fault warning value. If the concentration of each component o...

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Abstract

The invention relates to a preparation and evaluation method of transformer characteristic gas standard oil samples. By preparation of standard gases with different concentrations, preparation of a blank oil sample, thorough mixing of the standard gases with the blank oil sample and other steps, the preparation method realizes preparation of the transformer characteristic gas standard oil samples. The evaluation method utilizes the standard oil samples with different concentrations prepared by the method, and evaluates the gas chromatography performance including the minimum detection concentration, data repeatability and accuracy, and evaluates a gas chromatograph, thus realizing comprehensive evaluation of the transformer characteristic gas standard oil samples. The method provided by the invention can prepare standard oil samples with set characteristic gas concentrations at one time, and also can improve the quality of the gas chromatograph so as to ensure the device operation reliability and data accuracy.

Description

technical field [0001] The invention belongs to the field of electrical equipment insulation monitoring, and in particular relates to a preparation method and evaluation method of a transformer characteristic gas standard oil sample. Background technique [0002] With the continuous advancement of the strong smart grid strategy, the transformer, as the core power equipment of the smart substation link, plays a pivotal role in the power system connecting different voltage levels of the grid, and its operational reliability is closely related to the stability and safety of the power system. my country's power sector has invested a lot of manpower, funds and equipment to install online monitoring devices for transformers with voltage levels above 220KV. With the emergence of new technologies and equipment and the large-scale operation of monitoring devices, the old detection methods cannot meet the detection needs of new equipment, and performance detection methods that are comp...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01R31/12
Inventor 陈伟根王有元李剑杜林崔鲁王飞鹏周湶刘军
Owner 陈伟根
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