Wireless monitoring device and monitoring method for grounding current of transformer core/clamp

A wireless monitoring device, transformer core technology, applied in the direction of using digital measurement technology for measurement, etc., can solve the problems of inability to guarantee the multi-point ground fault of the iron core/clamp, difficulty in ensuring the accuracy and accuracy of the measurement data, etc. Accurate and stable real-time measurement, avoid failure, and ensure the effect of stable operation

Inactive Publication Date: 2013-06-19
LIAONING ELECTRIC POWER COMPANY LIMITED POWER SCI RES INSTION +3
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problems existing in the measurement of the above-mentioned transformer core/clamp ground current, the present invention provides a wireless communication-based transformer core/clip ground current wireless monitoring device and monitoring method, the purpose of whic...

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  • Wireless monitoring device and monitoring method for grounding current of transformer core/clamp

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Embodiment Construction

[0058] Such as figure 1 As shown, the present invention is a transformer core / clamp ground current wireless monitoring device and monitoring method based on wireless communication. The device is composed of a feed-through current transformer 1 and a device circuit board 2 in a casing Inside; the upper part of the housing 5 is connected to the top cover 6 of the casing, and the top cover 6 of the casing is provided with a display screen 4; the working circuit board 2 of the device is provided with a controller, a real-time clock system, a voltage signal conditioning circuit, and a gear switching control circuit , a current-voltage conversion circuit, a FLASH memory circuit, an E2PROM memory circuit, and a wireless communication module; the feed-through current transformer 1 is connected to the current-voltage conversion circuit, and the current-voltage conversion circuit is connected to the gear switching control circuit, and the gear switching control The circuit is connected ...

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Abstract

The invention belongs to the field of online monitoring of transformers, and particularly relates to a device and a method for monitoring the grounding current of a transformer core/clamp based on wireless communication. A straight-through current transformer and a device working circuit board are arranged in a shell. The upper part of the shell is connected with a housing top cover. A display screen is arranged on the housing top cover, and is connected to a controller. An external wireless communication module antenna is led from the shell. The device and the method can be used for monitoring data in real time, have functions of current ultralimit alarming, data information storage, system clock synchronization, parameter configuration and the like, and can be widely applied to the online monitoring of the grounding current of a core/clamp of electric equipment such as a transformer and a reactor, possible failures can be timely discovered, and the routing inspection work of an operator can be reduced or replaced.

Description

technical field [0001] The invention belongs to the field of transformer on-line monitoring, and in particular relates to a wireless communication-based transformer core / clamp grounding current wireless monitoring device and a monitoring method thereof. Background technique [0002] The power transformer is one of the key equipment in the power system, and it is also a link with a high failure rate in the power equipment. Its normal operation is an important guarantee for the safe, reliable, high-quality and economical operation of the power system. When the power transformer is in normal operation, the iron core / clamp must have one and only one point of reliable grounding. Once the iron core / clamp is grounded at two or more points, a circulating current will be generated inside the iron core / clamp, causing local overheating and serious Sometimes it will cause local burning of the iron core / clamp, and even fuse the grounding piece, causing the potential of the iron core / clam...

Claims

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Application Information

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IPC IPC(8): G01R19/25
Inventor 高强隋玉秋王文杰王茂军耿宝宏原峰李洪凯张静李平钟丹田刘齐李在林
Owner LIAONING ELECTRIC POWER COMPANY LIMITED POWER SCI RES INSTION
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