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Main transformer protective device test method and portable arithmetic facility

A technology of computing equipment and protection devices, applied in the field of testing, can solve the problems of complex formulas, cumbersome calculations, and inability to guarantee test accuracy, so as to achieve the effect of improving test accuracy and reducing test time

Active Publication Date: 2015-05-20
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the test, the protection principles and formulas used by different manufacturers and different models of protection devices are not the same, and the formulas are complicated
Testers need to correctly understand the protection principle and formula to complete, and the test accuracy cannot be guaranteed
In addition, cumbersome calculations lead to a long test process

Method used

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  • Main transformer protective device test method and portable arithmetic facility
  • Main transformer protective device test method and portable arithmetic facility
  • Main transformer protective device test method and portable arithmetic facility

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Embodiment Construction

[0040] 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 described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0041] The main transformer protection device testing method provided by the embodiment of the present invention is based at least on portable computing devices, such as smart phones, notebook computers, etc., to provide portability. In addition, smart phones have the advantage of being universal and easy to operate, and are easy to popularize in the power industry.

[0042] In order for the above method to be implemented, portable equipme...

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Abstract

The embodiment of the invention provides a main transformer protective device test method and a portable arithmetic facility. In the embodiment of the invention, all arithmetic equations corresponding to the protective devices with different models of different manufacturers are pre-stored in the portable arithmetic facility; test staff only need to set the manufacturers, the models of the protective devices and the parameter values of the protective devices; and the tested currents are respectively compared with the brake current, the current magnitude needed by each side of a main transformer is automatically computed by the portable arithmetic facility and the errors can be automatically computed. According to the technical scheme disclosed by the embodiment of the invention, the test can be finished under the condition that the test staff do not need to correctly understand the protective principle and formula, and the test precision is improved due to no effect of human memory, various computations are automatically finished by the portable arithmetic facility, and the test time is reduced in comparison with manual computation.

Description

Technical field [0001] The invention relates to the field of testing technology, and more specifically, to a testing method of a main transformer protection device and a portable computing device. Background technique [0002] In the daily technical transformation of power system relay protection, protection pre-test and defect elimination, it is often necessary to test and verify the proportional braking differential of the main transformer (referred to as the main transformer) protection device. In the test, the protection principles and formulas used by different types of protection devices of different manufacturers are not the same, and the formulas are complicated. It requires the tester to correctly understand the protection principle and formula to complete, and the test accuracy cannot be guaranteed. In addition, cumbersome calculations caused the test process to take too long. Summary of the invention [0003] In view of this, the embodiments of the present invention p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 林高翔龚列谦陈建胜刘主光张磊叶正策徐惜琼郑杨杨剑友叶立兆王荣滔潘中达刘希嘉李勇林琳林峰
Owner STATE GRID CORP OF CHINA
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