A power transformer operation state alarm device

Abstract

The invention relates to a power transformer running state alarm device. The device comprises a micro processor, wherein the micro processor is electrically connected with a wireless vibration detector, a wireless coding reception circuit, a current and open-phase detection circuit, a voltage / open-phase / power off / power failure detection circuit, a monitoring circuit, an onsite alarm circuit, a decoding circuit and a GSM alarm circuit separately. According to the device, the advanced GSM module technology is utilized, during running of a power transformer, the running state information can be emitted and can be telemetered by utilizing a GSM network, an alarm short message signal can be emitted when the power transformer generates change that current and voltage deviate from rated values or when accidents such as phase opening and power off occur, the alarm signal is telemetered by utilizing the GSM network, especially when the power transformer vibrates because of natural mechanical damage, artificial mechanical damage and burglary accidents, the alarm short message signal can be emitted, and the emitted alarm short message signal can be telemetered by utilizing the GSM network.

Description

technical field [0001] The invention relates to a power transformer operating state alarm device, which belongs to the technical field of power equipment safety protection. Background technique [0002] Power transformers are important equipment in power transmission lines, and their safe and stable operation is directly related to the national economy, the people's livelihood and the safe production of enterprises. The vast majority of power transformers are mostly placed on outdoor transformer platforms, especially the low-voltage power transformers that provide users with mains power are placed on outdoor unattended transformer platforms, with large consumption and wide distribution. Under normal conditions, the power transformer operates under the condition that the current and voltage are at the rated value. When the above-mentioned changes or accidents occur, the normal operation of the power transformer will be affected. In addition, since most of the power transform...

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Problems solved by technology

Under normal conditions, the power transformer operates under the condition that the current and voltage are at the rated value. When the above-mentioned changes or accidents occur, the normal operation of the power transformer will be affected. In addition, since most of the power transformers are placed on the outdoor transformer table and are unattended, sometimes the power transformer will suffer from natural mechanical damage and man-made mechanical damage. , and even stolen accidents

[0003] Most of the current power transformer operation state alarm devices are complex in structure, high in cost and slow in response

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