Static switch

Details Static switch Static switch

G - Physics

05

F

G05F 1/565 (2006.01) H01H 85/00 (2006.01) H02H 7/12 (2006.01) H03K 17/04 (2006.01) H03K 17/16 (2006.01) H03K 17/567 (2006.01)

Patent

CA 2044123

For a preset period (2s) following application of a closing order (5), the semi-conductor (T1) of the static power switch, supplied with DC voltage (V1), is controlled by a regulating circuit (F, 8, R3) so as to operate as a current generator limiting the current to a value (100mA) much lower than its rated value (30A). A fuse (F) acts as measuring shunt. The switch can comprise a circuit breaker function. In this case, the fault detection circuit (13) measures the voltage at the terminals of the semi-conductor (T1) and supplies an opening signal when this voltage exceeds a preset threshold.

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