The current limiting reactor is the most effective short circuit current limiting solution. It limits the overcurrent force on bars, isolators, circuit breakers and other high voltage devices. Current limiting reactors are the most economical and practical method of limiting current. The current limiting reactors are located at locations where the possible short circuit current exceeds the calculated cut-off ratio of the respective switching device in the distribution or transmission line. The inductive reactance for an acceptable voltage drop during normal operation must be sufficiently low but must be sufficiently large to avoid a high short circuit from the capacitors of the switchgear.

They are also used as load balancing reactors to balance the current in parallel circuits. Current limiting reactors are produced up to 420 kV. These reactors are designed to carry the nominal current continuously and the fault current for a certain period of time.

ADVANTAGES

Longer operating life for capacitors and equipment Mechanical resistance against high short circuit forces Longer lifetime with limited temperature rise Special surface protected against Class IV pollution areas and UV Maintenance-free design