G&W Electric’s High Current Limiter was developed at the request of a major utility. It features interrupt ratings to 120 kA thereby filling a void with traditional fuses limited to 50 kA. This eliminates the need for costly reactors. A primary application is in transformer tertiary winding circuits. It is a backup fuse intended to be applied in series with lower rated interrupters. Overloads are cleared by the lower rated device while major faults are cleared by the limiter.
Electrical Ratings Chart for High Current Limiters (HCLs)
|Max. Voltage||Up to 38kV|
|BIL Impulse||Up to 200kV|
|Continuous Current||Through 50A|
|Interrupting Rating||Up to 120kA sym|