Compact circuit interrupter having multiple ampere ratings

Details Compact circuit interrupter having multiple ampere ratings Compact circuit interrupter having multiple ampere ratings

H - Electricity

01

H

H01H 73/36 (2006.01) H01F 38/30 (2006.01) H01H 71/12 (2006.01) H01H 71/74 (2006.01) H01H 71/02 (2006.01)

Patent

CA 2042199

A compact circuit breaker containing an electronic trip unit for interrupting overcurrent conditions within a protected cir- cuit is made operable over a wide operating current range by means of current transformers having multiple turn primary wind- ings. The primary windings are selected to provide a constant ampere-turns ratio to the current transformers without changing the size of the secondary winding or the volume of the trans- former core.

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