High-accuracy Class 1 current sensors

GridKey provides a family of high-accuracy Class 1 current sensors that are quick and easy to install.

The sensors are designed as part of the innovative GridKey Low Voltage Substation Monitoring System. This system will revolutionise substation monitoring, enabling continuous real time data on all feeder cables and is designed to be part of the Smart Grid.

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Custom designed for monitoring LV substations. Fitting the sensor is straight forward; the geometry and size mean it can instrument substations where space is a premium and more traditional sensor technologies become a problem. The sensor clamps and locks around the conductor with no need to disconnect supply. Fitting is quick and easy without the need for tools or extensive training with typical installation time less than 1 minute per sensor. The sensor fits on tightly packed feeder cables.
The sensor will continue to operate in conditions where other sensors may fail, for example following large over currents or when installed in external locations. Based on a proprietary technology, using proven low cost manufacturing process, the GridKey sensor will continue to perform accurately throughout its lifetime. The unit is sealed and fully weatherproof. Once fitted the sensor will operate for 20 years inside a substation or on a pole mounted install.
Once fitted, there is no need for further site visits. GridKey produces accurate (Class 1) output in all conditions, is tolerant of interference from adjacent sources and is insensitive to the position of the sensor around the conductor. It produces accurate readings up to 720A providing useful information for the interrogation of overload and catastrophic failures.

WHY CHOOSE GRIDKEY SENSORS?

GridKey sensors are rugged enough for 20 years of continuous use indoors or outdoors (IP65) and provide class 1 metrology accuracy in a unique footprint suitable for installation in most substation locations. They are available with different cable lengths (1.5m, 3m, 5m and 10m) to accommodate most common installations and are fitted with an industry standard IP65 rated connector. A range of flexible sensors is also available (please contact GridKey for further details).

Grid Key sensor
GridKey sensors
GridKey Monitoring System
Metrology and Communications Unit

The GridKey sensors are designed as part of the innovative GridKey Low Voltage Substation Monitoring System. Continuous real-time monitoring will revolutionise substation monitoring, enabling continuous real time data on all feeder cables.