240 kV 고전압 변성기 국가표준 시스템 구축

• Published in: 전기학회 논문지 P권, 57(2) Vol. 57; no. 2; pp. 164 - 169
• Main Authors: 정재갑, 권성원, 이상화, 강전홍, 김명수, 한상길, 김윤형, 한상옥, Jung, Jae-Kap, Kwon, Sung-Won, Lee, Sang-Hwa, Kang, Jeon-Hong, Kim, Myung-Soo, Han, Sang-Gil, Kim, Yoon-Hyoung, Han, Sang-Ok
• Format: Journal Article
• Language: Korean
• Published: 대한전기학회 01.06.2008
• Subjects: 전기공학; Ratio Error; National Standard System; VT Comparator; Phase Displacement; VT Burden; Voltage Transformer
• ISSN: 1229-800X; 2586-7792

National standard system for calibrating voltage transformer(VT) up to primary voltage of 240 kV have been established in 2005. The system consists of voltage source, regulating unit, VT testing unit, standard VT, VT under test and VT burden. To verify and validate the performance for 240 kV VT calibration system, the comparison with the National Measurement Institute of Australia(NMIA) has been performed using same VTs. The comparison results of the VTs mesured at the Korea Research Institute of Stansdards and Science(KRISS) are consistent with those measured at NMIA within 0.002 % for ratio error and 0.14 min for phase displacement in the primary voltage ranges of Vp = 3300 V - 22000 V with a secondary voltage of Vs = 110 V.