Portable current transformer detector

Abstract

The invention discloses a portable current transformer detector. The structure comprises a handle, a power switch, an engine body, an anti-collision hood, a circuit terminal, a sampling circuit port,a conversion circuit port, a current sampler, a central processing unit, a portal device, a liquid crystal display circuit, a power circuit board, and a latch; the circuit terminal is connected with the sampling circuit port, the sampling circuit port is connected with the conversion circuit port, the current sampler is arranged on the conversion circuit port, and the latch is arranged on the power circuit board. The portable current transformer detector has the advantages that the portable device is provided, the power switch is started, the circuit terminal and the power circuit board are switched on, the sampling circuit port and the conversion circuit port are used for cooperating the detection, and then the current sampler is used for sampling the current transformer, the engine bodyis placed on a placing plate, and a driven wheel is connected with a driving wheel to move the detector, therefore, the error value of the detection is lowered, the field test is convenient, and the precision error is reduced.

Description

technical field [0001] The invention is a portable current transformer detector, which belongs to the technical field of detector equipment. Background technique [0002] The current transformer testing instrument is a transformer field testing instrument developed by analyzing the transformer mathematical model in detail on the basis of the original successful development of the transformer calibrator. It can directly measure the transformation ratio of the voltage transformer; it can qualitatively measure the ratio difference and polarity of the voltage transformer; it can measure the actual secondary load of the current and voltage transformer on site, etc. [0003] The prior art discloses a current transformer detector with application number 200420061839.8, which includes samplers ①, ②, sampling circuit ports ③, ④, conversion circuit ports ⑤, ⑥, single-chip circuit ⑦, and display circuit ⑧. The devices ① and ② sample the primary current signal and the secondary current...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the object of the present invention is to provide a portable current transformer tester to solve the problem that the existing current transformer tester generally uses a clamp-type ammeter to test the primary and secondary currents of low-voltage current transformers in operation. After conversion, the approximate current transformer transformation ratio is obtained

Existing equipment cannot meet the needs of on-site testing

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