Solid-State Motor Controllers

Solid-state motor controllers offer many advantages to the user. These include such benefits as improved system efficiency, reduced voltage drop during starting, adjustable-speed operation, maximum available motor torque during peak demand situations without extreme system voltage disturbance, and soft-start on high inertia loads. They achieve these results with low-maintenance reliable equipment. Both the principles of solid-state motor controller technology and the hardware involved are described. Some operating results based on specific applications are also presented.