High-speed disconnector using semiconductor technology

Details High-speed disconnector using semiconductor technology High-speed disconnector using semiconductor technology

H - Electricity

03

K

H03K 17/04 (2006.01) H02J 9/06 (2006.01)

Patent

CA 2256565

The invention specifies a disconnector for decoupling a load from a supplying AC voltage network. The disconnector comprises at least one disconnector stage having a series circuit comprising at least two reverse-conducting gate turn-off thyristors which are connected cathode to cathode. The gate turn-off thyristors are preferably hard driven. This allows the use of a single circuit capacitor in parallel with the series-connected gate turn-off thyristors. This embodiment has the advantage that, during disconnection, the current commutates early from the gate turn-off thyristors, which means that the disconnection capacity can be increased.

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