Capacitive Voltage Transformers (CVTs) are essential in modern high-voltage substations, offering an efficient and reliable way to step down transmission voltages—often above 100kV—to levels suitable for measurement, protection, and metering.
Unlike traditional electromagnetic transformers, CVTs use a capacitive voltage divider followed by an auxiliary transformer. This design not only ensures accurate voltage measurement but also makes insulation and installation much more economical at higher voltages. An added bonus: CVTs enable carrier communication (PLCC) overpower lines for tele protection and remote control.
Their combination of cost-effectiveness, reliable performance, and dual functionality makes CVTs a staple in today’s substations.
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