New fibre-optic current sensor

KVH Industries has signed a product development agreement with the ABB High Voltage business area, to co-operate in the development of a new fibre-optic current sensor. The agreement comes after a series of joint research projects during which both companies explored the feasibility of using fibre-optics to measure current in high voltage power lines.

The new sensors allow more accurate energy metering and wider bandwidth, as well as improved safety. They are expected to be significantly smaller and more accurate than existing devices, providing instantaneous digital measurement of the current. In addition, the transmission of the sensor signal by means of optical fibres provides an inherent insulation against high voltages.