MECHANICAL BYPASS SWITCH DEVICE, CONVERTER ARM AND POWER CONVERTER

摘要

It is provided a mechanical bypass switch device (1) arranged to bypass a converter cell in a power converter (9). The mechanical bypass switch device comprises: a mechanical switch (3); a mechanical switch actuator (5) arranged to make the mechanical switch (3) conduct when supplied with an electric signal; a first control input (4a); and a second control input (4b). The mechanical bypass switch device is arranged such that a control signal, provided on either one of the first control input and the second control input or on both of the first control input (4a) and the second control input (4b), causes the mechanical switch (3) to conduct.A corresponding converter arm (13, 13a, 13b) and bypass converter (9) are also presented.