Preparation apparatus for standard transformer oil sample and operation method thereof

A technology of standard oil sample and operation method, which is applied in the field of transformer standard oil sample configuration and preparation, can solve the problems of small dosage and short storage period, and achieve the advantages of improving quality, easy preparation, ensuring operation reliability and data accuracy. Effect

Active Publication Date: 2017-06-20
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
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  • Claims
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Problems solved by technology

The disadvantage of this preparation method is that the dose obtained each time is small and the storage period is short, so it can only be used now.

Method used

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  • Preparation apparatus for standard transformer oil sample and operation method thereof

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Embodiment Construction

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0047] An embodiment of a transformer standard oil sample preparation device provided by the present invention is as follows: figure 1 As shown, specifically:

[0048] The device includes an air storage tank 1, an oil cup 2, a closed cylinder body 3 and a circulation circuit. in,

[0049] The outlet of the airtight cylinder 3 is connected to the inlet of the airtight cylinder 3 through an oil outlet valve, a circulation pump 8 and an oil inlet valve to form a circulation loop.

[0050] The oil cup 2 is connected to the air sto...

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Abstract

The invention provides a preparation apparatus for a standard transformer oil sample, comprising a gas tank, an oil cup and an enclosed cylinder body, wherein the outlet of the enclosed cylinder body is connected with the inlet of the enclosed cylinder body via an oil outlet valve, a circulating pump and an oil inlet valve so as to form a circulation loop; the oil cup is connected with the gas tank via a three-way valve and connected with the circulation loop via a liquid flow pump; the other end of the oil cup is provided with an exhaust valve and a thermometer; the enclosed cylinder body is provided with a vacuum-pumping port, a gas source port, a sampling port, an oil inlet and an oil outlet; and the enclosed cylinder body controls full mixing of transformer oil samples via the circulating pump so as to obtain the standard transformer oil sample. Compared with the prior art, the preparation apparatus for the standard transformer oil sample in the invention has the following advantages: the prepared standard transformer oil sample can be used for comprehensive evaluation of on-line chromatographic performance including data accuracy, minimal detection concentration, the calibration mode of the apparatus and the like; and on-line detection apparatuses in operation can be checked on site and defects of the on-line detection apparatuses can be eliminated according to data.

Description

technical field [0001] The invention relates to the field of on-line monitoring of electrical equipment insulation, in particular to a transformer standard oil sample configuration preparation and an operation method thereof. Background technique [0002] Large-scale power transformers play a pivotal role in connecting power grids of different voltage levels in the power system, and their operational reliability is closely related to the stability and safety of the power system. At present, the power transformers above 110KV are still dominated by oil-immersed transformers. When thermal faults or discharge faults occur inside the transformer, or when oil and paper age, various trace gases will be generated. The relative quantity and formation speed of various gas components dissolved in transformer oil have an obvious corresponding relationship with the energy release form of the fault point and the fault type. According to the content of various gas components, it can be fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06
CPCG01N30/06
Inventor 李金忠王健一高飞程涣超汪可刘雪丽遇心如关健昕吴超白松
Owner CHINA ELECTRIC POWER RES INST
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