Vector network system for testing power transmission line passive interference level

A technology of passive interference and transmission lines, applied in the field of vector network systems, can solve the problems of signals that are difficult to carry out passive interference of actual lines, and the size of transmission lines is large, so as to achieve detection capabilities, improve transmission capabilities, and improve anti-interference. effect of ability

Inactive Publication Date: 2018-04-06
CHINA ELECTRIC POWER RES INST +2
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  • Abstract
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Problems solved by technology

[0005] The invention provides a vector network system for testing the passive interference level of transmission lines to solve the problem of measuring the passive interference signals of actual lines due to the huge size of transmission lines and the influence of electromagnetic interference in the space environment

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  • Vector network system for testing power transmission line passive interference level

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Embodiment Construction

[0015] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0016] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a vector network system for testing power transmission line passive interference. According to the system, a transmitting circuit is connected with a vector network analyzer sothat the vector network analyzer and a receiving circuit can be connected; the transmitting circuit comprises a transmitting antenna, an amplifier, a first port photoelectric conversion module, a first port connection optical fiber and a first port electro-optical conversion module which are connected in turn; the amplifier and the first port photoelectric conversion module are arranged in a first shielding box; the first port electro-optical conversion module inputs signals to the vector network analyzer; the receiving circuit comprises a receiving antenna, a second port photoelectric conversion module, a second port connection optical fiber and a second port electro-optical conversion module which are connected in turn; the second port photoelectric conversion module is arranged in a second shielding box; and the second port electro-optical conversion module receives the output signals of the vector network analyzer.

Description

technical field [0001] The invention relates to the technical field of electromagnetic environment testing of transmission lines, and more specifically, relates to a vector network system for testing the passive interference level of transmission lines. Background technique [0002] After the transmission line is erected, electromagnetic scattering will occur on the transmission line, overhead ground wire and iron tower due to the electromagnetic waves emitted by the nearby radio station or the incident radio wave in the distance, which will affect the reception effect of the nearby radio receiving station, that is, the passive interference effect . [0003] For the passive interference problem of transmission lines, calculation prediction and scaling model testing are generally used. Due to the huge size of transmission lines and the influence of electromagnetic interference in the space environment, it is difficult to carry out passive interference tests on actual lines w...

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/001
Inventor 干喆渊张建功路遥刘兴发张业茂周兵赵军谢辉春李妮王延召胡静竹刘震寰张斌万皓
Owner CHINA ELECTRIC POWER RES INST
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