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High Current Limiters

G&W'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:

Max. Voltage
up to 38kV
BIL Impulse
up to 200kV
Continuous Current
through 50A
Interrupting Rating
up to 120kA sym.

Drawings (Click Image to Enlarge)


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