Unlock instant, AI-driven research and patent intelligence for your innovation.

A Calculation Method of Oil Flow Movement in Transformer Oil Tank

A technology for transformer tank, motion conditions, used in transformer/inductor cooling, computing, computer-aided design, etc.

Active Publication Date: 2021-01-26
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a method for calculating the oil flow movement inside the transformer oil tank, which solves the technical problem that there is no method that can accurately reflect the oil flow movement inside the transformer oil tank when the transformer fails.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Calculation Method of Oil Flow Movement in Transformer Oil Tank
  • A Calculation Method of Oil Flow Movement in Transformer Oil Tank
  • A Calculation Method of Oil Flow Movement in Transformer Oil Tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The embodiment of the present invention provides a method for calculating the oil flow movement inside the transformer oil tank, which is used to solve the technical problem that there is no method that can accurately reflect the oil flow movement inside the transformer oil tank when the transformer fails.

[0054] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0055] see figure 1 , ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a calculation method for oil flow motion conditions in a transformer oil tank. The method includes the steps: correspondingly building a short-circuit current model, a transient leakage magnetic field calculation model, a winding transient mechanical model and a flow field model according to oil flow motion processes due to the fact that short-circuit current flows througha winding; performing coupling association on the four models; converting transient leakage magnetic change generated when the short-circuit current flows through the winding, transient electromagnetic force generated by transient leakage magnetic change, winding deformation vibration caused by the transient electromagnetic force and oil flow field change caused by winding deformation vibration into specific number conversion processes through models to obtain the oil flow motion conditions generated when failure current flows through the winding in the transformer oil tank. The calculation method solves the technical problem that a method capable of accurately reflecting oil flow motion conditions in the transformer oil tank when a transformer is faulted is absent at present.

Description

technical field [0001] The invention relates to the technical field of oil flow movement inside a transformer oil tank, in particular to a calculation method for oil flow movement inside a transformer oil tank. Background technique [0002] In the power system, the transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It mainly converts the voltage level to facilitate long-distance power transmission. When a fault occurs inside the oil-immersed transformer, the arc will decompose the insulating material and generate a large amount of gas, which flows from the oil tank to the oil conservator, and its intensity varies with the severity of the fault, reflecting the air flow and oil flow The action protection is called gas protection. When a fault occurs inside the transformer that causes the air flow and oil flow to move, by setting the setting value of the gas protection, the transfo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/28G06T17/00H01F27/14G06F113/08G06F119/14
CPCG06F30/367G06F2119/06H01F27/14
Inventor 周丹李德波林春耀杨贤杨楚明孙文星马志钦江丹宇
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID