- Current Transformers (CTs): Measure and step down current for use in measurement, monitoring, and protection systems. They are connected in series with the circuit, providing a lower current proportional to the high current in the system for safe, accurate measurement.
- Voltage Transformers (VTs): Measure and step down voltage for similar purposes. They are connected in parallel to the circuit, delivering a reduced voltage proportional to the high voltage for safe analysis and control.
In essence, CTs are used for current measurement and VTs for voltage measurement, both essential for protection, control, and monitoring in electrical power systems.
