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Method for detecting material and capacity of distribution transformer winding

A technology for distribution transformers and detection methods, which is applied in the measurement of electrical variables, instruments, and measurement of electricity, etc., can solve problems such as the lack of effective detection methods by inspectors and the quality of distribution transformers, so as to achieve economical inspection process and ensure stable work. , reliable results

Pending Publication Date: 2018-12-14
ZHEJIANG HUADIAN EQUIP TESTING INST +2
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a detection method for the winding material and capacity of distribution transformers, and to solve the technical problem that the existing detection personnel do not have effective detection methods and cause quality problems in distribution transformers

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  • Method for detecting material and capacity of distribution transformer winding

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Embodiment Construction

[0015] A detection method for distribution transformer winding material and capacity, comprising the following steps in turn:

[0016] Step 1: Statistically analyze the distribution of winding material parameters and capacity parameters of different types of distribution transformers;

[0017] Step 2: dividing the distribution interval of each parameter according to the distribution of the statistical analysis in step 1;

[0018] Step 3: Determine the core data of each parameter according to the distribution interval of each parameter obtained in Step 2, and set the test parameter factor f i and test parameter weight ratio p i ;

[0019] Step 4: According to the test parameter factor f set in Step 3 i and test parameter weight ratio p i Establish the total probability F and risk assessment model, and divide the risk level;

[0020] Step 5: According to the risk level classified in step 4, judge whether there is a problem with the distribution transformer.

[0021] Throug...

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Abstract

The invention relates to a method for detecting material and capacity of a distribution transformer winding, which orderly comprises the following steps: step 1, counting the distribution of a material parameter and a capacity parameter of the winding; step 2, dividing a distribution interval; step 3, determining core data; step 4, dividing the risk grade, and step 5, judging whether the distribution transformer has a problem. The method for detecting material and capacity of the distribution transformer winding in the invention has the following advantages: through the detection method, the distribution transformer of the suspected winding material or the capacity faking problem in large-scale distribution transformer can be primarily selected quickly; then, the inspection personnel confirms the distribution transformers having the suspected problem one by one, thereby ensuring stable work of the distribution transformer and ensuring the safety performance of the whole power distribution system; the whole detection process is economic, reliable in result and short for the period; the detection means is intelligent and efficient; different core data are set to adapt to different detection targets, thereby meeting different detection requirements.

Description

technical field [0001] The invention relates to a detection method for distribution transformer winding material and capacity. Background technique [0002] Distribution transformer refers to a static electrical appliance that transforms AC voltage and current according to the law of electromagnetic induction in the power distribution system and transmits AC power. In recent years, incidents of equipment quality problems in distribution transformers have occurred frequently, such as Nepal's "China Distribution Transformer Aluminum Substituting Copper " and user engineering "distribution transformer stealing capacity", and the current market lacks a fast, non-destructive and effective detection method to find the above problems, which will easily affect the service life of distribution transformers and reduce the safety performance of the overall distribution system. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 郑志曜李志高一波余绍峰劳增江
Owner ZHEJIANG HUADIAN EQUIP TESTING INST
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