Asynchronous frequency converter

three-phasebuilt-incabinet

Cabinet type frequency converters series VSI PN are converters with intermediate voltage circuit, made on IGBT-transistors with pulse-width modulation. They convert three-phase current system with constant frequency and amplitude to three-phase current system with variable frequency and voltage. Such converters are used in fields, where three-phase current with variable frequency or power regeneration is needed. Drives rotation frequency is regulated smoothly and with low losses in wide range of motor mechanical characteristics due to application of digital control system, which operates both with and without speed sensor. Thereby PLUTON guarantees optimum coordination of converter and motor with machine tool with all the requirements to technological process. Both converter and asynchronous machine represent steady drive, which doesn't require regular maintenance. Benefits ready-to-connect converters resistant to short circuit, short circuit earth fault and no-load operation; cabinet execution with built-in power circuit breakers for direct network connection; implementation of single-motor and multi-motor synchronous and asynchronous drives; vector-oriented regulation; constant torque start; various regulation сircuits; selective clock frequency; stable without breakdown motor and generator operation mode; braking (option) with regenerator unit or chopper. Application of digital electronics with microprocessor schemes, specially optimized for drives tasks, guarantees the required accuracy and reliability during control of any technological processes. Besides control and regulation,