Transformer voltage wireless measurement device

Abstract

The invention provides a transformer voltage wireless measurement device, belongs to the technical field of power transformation, and mainly solves the problems that the cost and the loss are high and potential safety hazards exist to operating personnel when a mutual inductor is used for measurement in the prior art. The transformer voltage wireless measurement device comprises a transformer magnetic circuit and is characterized by further comprising a voltage sampling device, and the voltage sampling device comprises a solitary turn coil, an analog-digital conversion device and a wireless transmitter; the magnetic circuit is wound with the solitary turn coil, the solitary turn coil is close to a tested primary side or auxiliary side coil, the analog-digital conversion device is connected between two ends of the solitary turn coil, an output end of the analog-digital conversion device is connected with the wireless transmitter, and an induction voltage value in the solitary turn coil is transmitted to a receiving device through the wireless transmitter.

Description

technical field [0001] The invention belongs to the technical field of power transformation, and in particular relates to a transformer voltage wireless measuring device. Background technique [0002] At present, the voltage or current value on both sides of the transformer is usually measured through a transformer. This measurement method has the following disadvantages: First, the transformer needs to be connected to the line of the transformer, which affects the capacity of the transformer. The second is that the measurement accuracy is affected by the accuracy of the transformer; the third is that the transformer is the main component of the measurement equipment, and its purchase cost and maintenance cost are relatively high; the fourth is that although the transformer measurement has a magnetic circuit that has been electrically isolated, it is difficult for the operation There are still some security risks for personnel. Contents of the invention [0003] The purpo...

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Problems solved by technology

[0002] At present, the voltage or current value on both sides of the transformer is usually measured through a transformer. This measurement method has the following disadvantages: First, the transformer needs to be connected to the line of the transformer, which affects the capacity of the transformer. The second is that the measurement accuracy is affected by the accuracy of the transformer; the third is that the transformer is the main component of the measurement equipment, and its purchase cost and maintenance cost are relatively high; the fourth is that although the transformer measurement has a magnetic circuit that has been electrically isolated, it is difficult for the operation There are still some safety hazards for personnel

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