Electricity sensors are devices that measure electrical quantities and convert the physical input quantities into electrical output signals for the purpose of data transmission, processing, storage, display, logging and control. The electricity sensor is the most important basis to realize automatic detection and control. By using it, input measurand (the parameter being measured, such as current, voltage, power and frequency) will be converted into DC current and DC voltage, and then turned to electrical analog signals or digital signals.
Current transformer (CT) is a device used to reduce the alternating current levels from several hundreds or thousands of amperes down to a useable value. The current transformers are commonly connected to meters and relays for current measuring and protection purposes, fulfilling your commercial facilities’ power grid monitoring and current measuring needs.