The high-voltage thyristor voltage converters (types: PAD-V-K and PSD-V-K) for individual soft start of asynchronous and synchronous motors are made as the packaged converters, intended for individual soft start of asynchronous and synchronous motors with a voltage of 6 kV and a power of 0,315…2,2 MW, in the form of single space-saving highly dust-proof-and-moisture-proof cabinets.
The converters are designed for soft start of one motor only and are functionally self-contained devices. So there is no need for using the additional cubicle switchboards to supply power to thyristor voltage converters, and the power supply system of a substation, shop or plant remains unchanged.
The devices provide for absolute motor control and protection both during acceleration and in operating mode. A single hermetically sealed cabinet contains a set of all necessary power switches, protective elements, a thyristor voltage converter and a control system.