Analog transformer

Abstract

The invention relates to the technical field of transformer detection devices, in particular to an analog transformer which comprises relay switches, a voltage sensor, a current sensor, a bus device, a smart gateway, a GPRS (general packet radio service) communication device, a smart phone, an input device, a display device, an alarm device and a smart voice device. The number of turns of coils connected into a circuit is controlled by the relay switches, so that the strength of inductance is controlled, resistance values and inductive reactance values of the transformer can be measured under the condition of different numbers of turns, the relation among transformation ratios corresponding to different numbers of turns can be studied, voltage values and current values are quite visually displayed by the display device, the numbers of turns can be changed only by controlling the relay switches at different positions to be turned on through a microprocessor, the analog transformer is high in safety factor, quite intelligent, more convenient to operate and high in creativeness, and the smart phone can be connected by matching the smart gateway with the GPRS communication device to realize remote intelligent control and operation.

Description

technical field [0001] The invention relates to the technical field of transformer detection devices, in particular to an analog transformer. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the use, it can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers , reactors, transformers, etc.). The transformer consists of an iron core (or magnetic core) an...

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Problems solved by technology

[0003] The above-mentioned patent documents control the motor controller through a computer, so that the motor controller controls the forward or reverse rotation of the stepping motor, so that the stepping motor drives the adjusting end of the variable inductance and the variable resistor through the transmission device to adjust the variable resistor and the variable resistor. The value of variable inductance enables variable resistors and variable inductors to simulate the inductance and impedance of various transformers, avoiding the operator to open the casing to manually adjust the value; but for how to provide a simple structure, more convenient operation, can realize Intelligent control, higher safety performance, more intuitive demonstration, lack of technical solutions for analog transformers

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