Medium voltage thyristors

IXYS (UK-Westcode) has developed a comprehensive range of phase-controlled thyristors designed to meet medium voltage applications. It ensures an excellent switching performance over a wide range of voltage, current and di/dt.

The device lifetime of these medium voltage thyristors are engineered to achieve an optimum balance between conduction losses, communication losses, commutation losses and turn-off time to give maximum power handling from line frequency to 400 Hz. This also gives significant benefits when series or parallel connection of devices is required. Medium voltage thyristors are available from 3.2 kV up to 6.5 kV with silicon diameters from 38 mm to 100 mm making them particularly suitable for high power converter such as medium voltage DC drives, medium voltage soft starts and utility applications such as HVDC, static VAr compensators, excitation and transfer switches.