Static switch

Electricity: electrical systems and devices – Safety and protection of systems and devices – Voltage regulator protective circuits

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361 91, 323908, 323285, H02H 904

Patent

active

051538024

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

REFERENCES:
patent: 4307440 (1981-12-01), Inoue et al.
patent: 4937697 (1990-06-01), Edwards et al.
Patent Abstracts of Japan, vol. 13, No. 123 (E-733) [3471], Mar. 27, 1989.

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