Field intensity detection device and method based on temperature
A field strength detection and field strength technology, applied in the electrical field, to achieve the effect of good guidance and correction
Active Publication Date: 2021-03-16
ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY +4
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[0004] The purpose of the embodiments of this specification is to provide a temperature-based field strength detection device and method to solve the problem of how to determine the influence of temperature on field strength
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[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present specification in combination with the drawings in the embodiments of the present specification. Obviously, the described embodiments are only some of the embodiments of the present specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this specification.
[0014] The embodiment of this description first proposes a temperature-based field strength detection device, such as figure 1 As shown, the field strength detection device may include a positive electrode 2, a negative electrode 3, a test material 5 clamped by the positive electrode 2 and the negative electrode 3, a voltage regulator connected to the positive electrode 2 and the negative electrode 3 8. The temperature regulator 4 and the partial dis...
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The embodiment of the invention provides a field intensity detection device and method based on temperature. The device comprises a positive electrode, a negative electrode, a test material clamped bythe positive electrode and the negative electrode, a voltage regulator connected with the positive electrode and the negative electrode, a temperature regulator arranged on the positive electrode andthe negative electrode respectively, and a partial discharge detector connected with the negative electrode. A field intensity probe is placed in the test material; the field intensity probe corresponds to preset breakdown field intensity; the field intensity probe generates a partial discharge phenomenon when the corresponding field intensity reaches the preset breakdown field intensity; the voltage regulator is used for regulating the voltage between the positive electrode and the negative electrode; the temperature regulator is used for regulating the temperature of the positive electrodeand the negative electrode; and the partial discharge detector detects the partial discharge phenomenon when the field intensity probe is broken down. According to the device, the clamping voltage corresponding to the preset breakdown field intensity can be obtained at the adjusted test temperature, and the influence of the temperature on the field intensity is determined.
Description
technical field [0001] The embodiments of this specification relate to the field of electrical technology, and in particular to a temperature-based field strength detection device and method. Background technique [0002] With the progress of society and the development of technology, the scale of power grids built in our country continues to expand. In recent years, with the development of flexible DC technology, high-voltage DC cable transmission technology has gradually received attention. High-voltage DC cables have the advantages of large transmission power, light weight, and simple installation, and can effectively reduce power transmission losses, so they have good development prospects. [0003] However, in practical applications, when the DC current is used to transmit electricity, the electric field distribution inside the cable has a strong correlation with the volume resistivity, and the volume resistivity will gradually change with temperature, that is, there i...
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IPC IPC(8): G01R31/00G01R31/12G01R1/02
CPCG01R31/003G01R31/1272G01R1/02
Inventor 卢毅王书渊程养春杨擎柱薛文祥王辉郑一博高岩峰张旭王馨范硕超陈原徐党国秦逸帆张吉飞苏斌刘敏
Owner ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY