Fault Current

Extending the Capacity of the Power Grid

Fault current

FaultCurrent Ltd produces the next generation of Fault Current Limiters, the pmFCL. The innovative design uses permanent magnets at the core to provide a reliable, robust and energy efficient solution for grid reinforcement.

FaultCurrent Ltd is pioneering the development of permanent magnet fault current limiters based on its patented ‘Distributed Magnet Matrix’ concept, interspersed with current carrying windings mounted over magnetically saturated electrical steel limbs.

The pmFCL needs no auxiliary power sources so its operational costs are zero. It presents a low impedance, with minimal insertion loss, during normal ‘in service’ current flow until a fault instantaneously forces the device into a higher impedance state. Once the fault is cleared the device instantaneously returns to it’s low impedance state.

Fault Current

Extending the Capacity of the Power Grid

Fault current

FaultCurrent Ltd produces the next generation of Fault Current Limiters, the pmFCL. The innovative design uses permanent magnets at the core to provide a reliable, robust and energy efficient solution for grid reinforcement.

FaultCurrent Ltd is pioneering the development of permanent magnet fault current limiters based on its patented ‘Distributed Magnet Matrix’ concept, interspersed with current carrying windings mounted over magnetically saturated electrical steel limbs.

The pmFCL needs no auxiliary power sources so its operational costs are zero. It presents a low impedance, with minimal insertion loss, during normal ‘in service’ current flow until a fault instantaneously forces the device into a higher impedance state. Once the fault is cleared the device instantaneously returns to it’s low impedance state.

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