DC-tolerant current transformers (CTs) are gaining importance in the metering marketplace. Compared to general-purpose CTs, they have a much larger phase angle and are less linear at low currents. This article discusses how DC-tolerant CTs from J&D Electronics Co., Ltd. can be used in accurate electricity meters, when combined with the excellent compensation features of Teridian's single- and polyphase energy-metering SoCs. These SoCs can easily implement linearization of the CT output over current and temperature. Read full article.