On-line intelligent checking table for low voltage breaker protective property

Abstract

The on-line intelligent checking table for the protection property of low voltage breaker includes work table, fixture, display device, main detection loop and power circuit. The on-line intelligent checking table features that it includes also product ID distinguishing device, main control circuit and fixture drive executing mechanism. Owing to the product ID distinguishing device, the main control circuit and the fixture drive executing mechanism, the present invention reads in the product code, establishes product quality inspecting database, and stores and manages the database in PC during inspection, and this is favorable to raising product managing level and improving production process by means of the user's feedback information, raising product quality and preventing phony.

Description

Technical field [0001] The invention relates to a low-voltage circuit breaker calibration device, which is mainly used for on-line detection and calibration of the long-time delay protection characteristics of low-voltage molded case circuit breakers. Background technique [0002] Low-voltage molded case circuit breakers are widely used in low-voltage power distribution networks to provide over-current protection for electrical equipment such as motors, power distribution lines, and lighting wires. The protection features of low-voltage molded case circuit breakers mainly include overload long-time delay protection and short-circuit instantaneous protection. Low-voltage molded case circuit breakers respond differently to different overload currents. When a short circuit occurs, the line should be cut off within a few cycles. If the overload current is smaller, the circuit breaker will act more slowly. For example, when the overload current is 1.05 times its rated current, i...

AI Technical Summary

Problems solved by technology

At present, the current testing and calibration equipment of various manufacturers in the low-voltage electrical appliance industry is relatively backward, and the main problems are: 1. Adopt all calibration and debugging, sampling standard testing and inspection, human factors are greatly affected, and the product protection characteristics that pass the calibration are poor. , so that the reliability of the sampling test is reduced; 2. The technical file of the product is not perfect, and the user's feedback information is difficult to compare with the product file, which is not conducive to improving the production management level, improving the production process and product quality through the user's feedback information; 3. The technical file of the product is not complete, and it is not easy to prevent counterfeiting, so that counterfeit and inferior products can be exploited

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