ABB UNITROL® excitation systems for motors Automatic start and smooth operation for synchronous motors
ABB UNITROL® excitation systems for motors Automatic start and smooth operation for synchronous motors
Synchronous motors are used in many industries for driving pumps, fans, mills and other large loads. No matter the application, UNITROL automatic voltage regulators ensure optimal and safe operation of the motor at all times. Operator commands can be reduced to “start“ and “stop“ with the integrated sequence control. UNITROL excitation systems can be fitted to any motor brand. UNITROL® 6080 – Proven flexible solutions UNITROL 6000 is ABB’s latest generation of indirect (AVR) and static excitation systems (SES). Its smaller version, UNITROL 6080, is a compact and cost-effective solution with full functionality. It offers high performance control, easy operation, monitoring and maintenance of the system. Limiting and protecting functions keep the system within safe range and increase the reliability.
UNITROL® 6080 single channel 820 A static excitation system for motors
Highlights of UNITROL® excitation for motors– High performance closed loop motor voltage control– Reactive power compensation– Automatic startup sequence after closing motor circuit breaker– Smooth dynamic and steady state motor operation– Voltage stability support– Extensive integrated monitoring, limiting and protection
functions for safe operation and motor protection– Powerful excitation control terminal (as PC-application or
optionally integrated) for short commissioning and mainte-
nance time– Standardized for cost effectiveness and faster lead times– Integrated motor auxiliaries control (optiona
AVR functions– AVR setpoint control– Underexcitation limiter– Minimum and maximum field current limiter– Stator current limiter (underexcited and overexcited)– Power factor control– Reactive power control Manual control mode for field current regulation Auxiliary functions– Event logger with real time stamp– 6 channel transient recorder Hardware options– Fieldbus (Profibus DPV-0, Modbus TCP or RTU)– Field circuit insulation monitor– Higher protection class (up to IP42)