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Physical simulation platform for secondary resonance elimination device detection and detection method

A secondary harmonic elimination and physical simulation technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve problems such as uneven product quality, poor structural reliability, and inability to realize multiplexing, so as to reduce detection costs and ensure reliable application. performance and convenience

Pending Publication Date: 2021-02-26
ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY +4
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Problems solved by technology

[0004] However, the existing equipment for performance testing of the secondary harmonic elimination device has problems such as poor structural reliability or inability to realize multiplexing, and due to different technical levels of various manufacturers, the products produced are uneven, so the existing secondary harmonic The detection equipment of the harmonic elimination device cannot guarantee the application reliability of the secondary harmonic elimination device

Method used

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  • Physical simulation platform for secondary resonance elimination device detection and detection method
  • Physical simulation platform for secondary resonance elimination device detection and detection method
  • Physical simulation platform for secondary resonance elimination device detection and detection method

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Embodiment Construction

[0099] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0100] The secondary resonance elimination device needs to be able to quickly and accurately identify the ferromagnetic resonance after the ferromagnetic resonance occurs and put in the resonance elimination resistor. The second resonance is caused when the single-phase ground fault occurs; since the input of the resonance elimination resistor may cause the PT...

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Abstract

The embodiment of the invention provides a physical simulation platform for secondary resonance elimination device detection and a detection method. The platform comprises a 380V system and a 10kV system; wherein the 380V system comprises a fault generator, a 380V bus and an analog circuit, the analog circuit comprises a 10kV system access point, a parameter unit for simulating the ground capacitance of the corresponding analog circuit and a load unit for simulating a user load which are connected in sequence, and the analog circuit is also provided with a fault access point for connecting thefault generator; and the 10kV system comprises a high-voltage feeder line unit used for being connected with a secondary resonance elimination device, the high-voltage feeder line unit is connected with a 10kV system access point, and an oscilloscope is arranged on the high-voltage feeder line unit. Based on the technical scheme, the secondary resonance elimination device is reliable in structureand high in reusability, and performance detection can be carried out on the secondary resonance elimination devices of different manufacturers or models, so that the application reliability of the secondary resonance elimination devices is guaranteed, the detection convenience, efficiency and reliability of the secondary resonance elimination devices are effectively improved, and the detection cost is reduced.

Description

technical field [0001] This application relates to the technical field of electric power equipment, in particular to a physical simulation platform and a detection method for detection of a secondary harmonic elimination device. Background technique [0002] Ferromagnetic resonance is a kind of resonance phenomenon in which the parameters of inductance and capacitance in the circuit are matched to form resonance due to the saturation of the iron core, resulting in a surge in voltage and current. It generally exists in 35kV and below neutral point ungrounded systems, closing and switching Operation, single-phase-to-earth fault, etc. are the triggers to excite ferroresonance. Ferromagnetic resonance will cause accidents such as PT secondary fuse blown, PT winding overheating and burning, PT turn-to-turn insulation damage, surge arrester burst, and grounding line selection device misoperation. In some substations, the PT insurance will be blown dozens of times a month, which s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 张超彭珑马鑫晟赵媛庞博宋新利李凤海赵娜毛婷孙云生袁文迁刘慧林胡应宏张静岚刘羿辰龙凯华卢毅刘亮谢丽芳
Owner ELECTRIC POWER RES INST STATE GRID JIBEI ELECTRIC POWER COMPANY
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