Switching system including a current injection disconnect...

H - Electricity – 01 – H

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Details

H01H 67/00 (2006.01) H02B 13/035 (2006.01) H02K 13/00 (2006.01)

Patent

CA 2227907

The multi-position switching system to separate or connect a generator, a network transformer and a starting circuit comprises a generator circuit breaker (2), a bar disconnect switch (3) to separate or link together the generator and the network transformer and a startup disconnect switch to separate or connect together the generator and the starting circuit. The bar disconnect switch comprises a primary fixed breaker point (10) and a primary movable breaker point (11) functioning in a sliding fashion with the primary fixed point, the primary movable point and the primary fixed point being incorporated with the generator circuit breaker. The starting circuit comprises a second fixed point (13) and a second movable point (14) functioning in a rotary fashion with the second fixed point. This arrangement is cost-effective, even for applications where the generator is an alternator for a gas turbine or combined-cycle power plant.

Le système de commutation à plusieurs positions pour séparer ou relier ensemble un générateur, un transformateur de réseau et un dispositif de démarrage, comprend un disjoncteur de générateur (2) et un sectionneur de barre (3) pour séparer ou relier ensemble le générateur et le transformateur de réseau et un sectionneur de démarrage (9) pour séparer ou relier ensemble le générateur et le dispositif de démarrage. Le sectionneur de barre comprend un premier contact fixe (10) et un premier contact mobile (11) coopérant par coulissement avec le premier contact fixe, le premier contact fixe et le premiercontact mobile étant intégrés au disjoncteur de générateur. Le sectionneur de démarrage comprend un second contact fixe (13) et un second contact mobile (14) coopérant par rotation avec le second contact fixe. Cet agencement reste économique à réaliser même pour des applications dans lesquelles le générateur est un alternateur de centrale à turbine de gaz ou à cycle combiné.

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