An AC reactor load test circuit and test method

Abstract

The invention discloses an AC reactor load test circuit and a test method, comprising a high-frequency power supply module, a low-frequency power supply module and a test module, the high-frequency power supply module is provided with a high-frequency power supply HF, and the test module includes a transformer T , capacitor C1, capacitor C4 and ammeter A, the two ends of the high-frequency power supply HF are connected to the two ends of the primary coil of the transformer T; one end of the secondary coil of the transformer is connected to one end of the capacitor C1 to the load Lx, and the other end of the secondary coil One end is connected to the ammeter A, the capacitor C4 and the other end of the load Lx. The low-frequency power supply module includes a low-frequency power supply LF, an inductor L1 and a capacitor C3. The low-frequency power supply LF, the inductor L1 and the load Lx are connected in series to form a loop. The low-frequency power supply Capacitor C3 is connected in parallel at both ends of LF, and the load Lx is a reactor. The product development time is shortened, the qualified rate of samples sent to the client is improved, and the user experience is improved.

Description

technical field [0001] The invention relates to the field of reactor load testing, in particular to an AC reactor load testing circuit and a testing method. Background technique [0002] Reactors are also called inductors. When a conductor is energized, a magnetic field will be generated in a certain range of space occupied by it. Therefore, all current-carrying electrical conductors have the performance inductance of the above-mentioned inductors in the general sense. However, the inductance of the energized long straight conductor is small, and the generated magnetic field is not strong, so the actual reactor is the wire wound into the form of a solenoid, which is called an air-core reactor; sometimes in order to make the solenoid have a larger inductance, The iron core is inserted into the solenoid, which is called iron core reactor. Reactance is divided into inductive reactance and capacitive reactance. The more scientific classification is that inductors (inductors) an...

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Problems solved by technology

[0003] The load that has just been designed in the existing market can only be directly connected to a household circuit specially used for experiments or to purchase a special and expensive ultra-high frequency power supply for testing. Not only the cost of the experiment is high, but also blindly connected directly Into the existing household circuit, it is easy to cause accidents, and there is a lack of a test circuit that can simulate the load in the actual circuit

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