Inductive Fault Current Limiters

50% reduction of fault currents, ¼ cycle reaction time,
handles long duration faults and breaker reclosure attempts

Fault tolerance is an increasingly important issue in power grid operation. Zenergy Power’s Fault Current Limiters protect power grids against damaging power surges caused by short circuits or lightning strikes while maintaining a disruption-free downstream power supply. Inductive Fault Current Limiters provide power grid operators with a new solution for grid reliability, cost-efficient grid expansion, and integration of distributed generation sources.

• Inherently failsafe inductive limitation of fault currents without interruption in downstream power supply;
• Entirely passive and self-triggered
• Failsafe limitation of multiple faults; automatic recovery after each event
• Improved operational reliability in fully-stretched grids;
• Greatly reduced risk of large scale blackout due to cascading grid failures following a fault event
• Standard solution for cost-efficient grid expansion;
• Deferred replacement of substation equipment
• Simplified integration of distributed power generation into the network infrastructure.

Zenergy Power’s Fault Current Limiter has been put into regular operation in the United States’ power grid in March 2009. Southern California Edison is the first electric utility company in the US to use the device for protecting a distribution circuit of its medium voltage grid.