Asea brows boveri ltd supplies compact fibre optic current sensor. Asea brows boveri ltd is an iso 14001 accredited company offering a wide range of electronic and power control equipments like relays, actuators, circuit breakers, transformers, bushings, bay controls, flow metres and switchgears. The compact fibre optic current sensor is easy and flexible to use and is designed for measuring high dc currents. The compact fibre optic current sensor is based on the magneto-optic effect in a single-ended optical fibre around the current conductor and can measure uni- or bidirectional dc currents up to 500 ka.