Mid-current range medium voltage thyristor

5 March 2008 Power Electronics / Power Management

Westcode has introduced a new high efficiency 6,5 kV thyristor for electrical power control, generation and distribution. The 6,0 kV and 6,5 kV devices have an average current rating of 1351 A and are encapsulated in 63 mm pole face hermetic pressure contact packages.

These new products are manufactured using advance alloy-free processing techniques to give device characteristics ideal for medium voltage applications. These new additions offer mid-current devices in the established medium voltage thyristor product range and represent the first of several planned introductions in this package size.

The new devices incorporate advanced processing such as distributed gate architecture for improved turn-on characteristics and enhanced di/dt capability, improved dynamic characteristics with reduced tq and recovery time. These properties make these devices suitable for medium voltage applications including DC drives, soft-starts, utility applications such as HVDC, static VAR compensators, excitation and transfer switches.

The devices are available in two voltage classes and two package options; K1351VF600 and K1351VC600 which are rated at 6,0 kV and housed in 26 mm and 35 mm thick packages respectively, and the K1351VF650 and K1351VC650 which are in corresponding packages rated at 6,5 kV.

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