Abstract
본 연구에서는 콘센트용 누설전류 감지 및 자동차단 모듈을 개발하였다. 제안된 누설전류 검출 모듈은 저항성 누설전류 검출 칩을 사용한 콘센트용 누설전류 검출 모듈과는 차별화된, 전력 프로세서인 MSP430 MCU(Micro Controller Unit)를 이용하여 합성 누설전류에서 저항성 누설전류를 프로그램으로 분리 검출한다. 제안된 방법으로 구현된 모듈은 저항성 누설전류 5mA 이상에서 조기 검출 및 자동차단 기능이 있을 뿐만 아니라, 저항성 누설전류 검출 기능이 프로그램으로 구현되어 있어 저항성 누설전류 5mA 이하 또는 이상으로도 쉽게 조정이 가능한 장점이 있다. In this paper, the leakage current detection and auto shut-off module for a concent has been developed. Existing leakage current detection modules are detecting resistive leakage current, using a resistive leakage current detection chip but the proposed leakage current detection module separates and detects resistive leakage current in the synthesis leakage current by only programming in a power processor MCU(MSP430). The module implemented by proposed method has early detection and auto shut-off feature at more than resistive leakage current 5mA, and has the advantage of easily adjusting resistive leakage current less or more than 5mA, because of resistive leakage current detection function being implemented by a program in MCU.
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