Digital models of coupling capacitor voltage transformers for protective relay transient studies

• Published in: IEEE transactions on power delivery Vol. 7; no. 4; pp. 1927 - 1935
• Main Authors: Kezunovic, M., Kojovic, L., Skendzic, V., Fromen, C.W., Sevcik, D.R., Nilsson, S.L.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.10.1992; Institute of Electrical and Electronics Engineers
• Subjects: 240100 - Power Systems- (1990-); 240300 - Power Transmission Lines & Cables- (1990-); 990200 - Mathematics & Computers; Applied sciences; CAPACITORS; Circuit faults; COMPUTERIZED SIMULATION; Connection and protection apparatus; Digital relays; DIGITAL SYSTEMS; Electrical engineering. Electrical power engineering; ELECTRICAL EQUIPMENT; EMTP; Exact sciences and technology; GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; OPERATION; PERFORMANCE TESTING; Power system modeling; Power system transients; POWER SYSTEMS; POWER TRANSMISSION AND DISTRIBUTION; POWER TRANSMISSION LINES; Protection; Protective relaying; RELAYS; RELIABILITY; Senior members; SIMULATION; TESTING; TRANSFORMERS; TRANSIENTS; VOLTAGE REGULATORS; Voltage transformers; Operation study; Transient response; Voltage transformer; Relay; Parametric sensitivity; High signal converter; Numerical simulation; Digital protection; Frequency response; Protective switchgear; Capacitive coupling; Modeling

The authors describe the development by EPRI of digital coupling capacitor voltage transformer (CCVT) models that are intended for digital simulation of fault transients. Experimental techniques for laboratory measurements of the CCVT parameters are outlined. A sensitivity study was performed to ide...