APPARATUS AND METHOD FOR DETECTING WRONG WIRING OF WATT-HOUR METER

• Main Authors: KIM, DONG SUB, KIM, SANG JUN, KIM, BEOM JO, LEE, SEUNG JAE
• Format: Patent
• Language: English; Korean
• Published: 04.08.2016
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The present invention relates to an apparatus and a method for detecting the wrong wiring of a watt-hour meter. The apparatus includes a detection part which detects voltage and current signals from a three-phase three-wire watt-hour meter; a calculation part which calculates the effective and ineffective amount of power, and a phase angle for each phase and between phases based on the voltage and current signals; and a wrong wiring detecting part which detects the wrong wiring of the watt-hour meter based on the effective amount of power, a phase angle for each phase, the generation of a current value at non-active power metering, a period average power factor, and a phase difference between phases. 본 발명은 전력량계의 오결선 감지 장치 및 그 방법에 관한 것으로, 3상 3선식의 전력량계로부터 전압 및 전류 신호를 검출하는 검출부; 전압 및 전류 신호를 토대로 유효 및 무효 전력량, 상별 및 상간 위상각을 산출하는 산출부; 및 유효 전력량, 상별 위상각, 무계량 일 때 전류값 발생 여부, 기간 평균역률 및 상간 위상차를 토대로 상기 전력량계의 오결선을 감지하는 오결선 감지부;를 포함한다.