ABB UNITROL 1000-7 Product Description

ABB UNITROL 1000-7 is a compact digital automatic voltage regulator (AVR) and excitation controller for synchronous generators. It provides fast, precise excitation control to stabilize generator terminal voltage, enhance power system stability, and protect rotating machines against abnormal operating conditions. Built to ABB’s rigorous power generation standards, this excitation unit delivers reliable performance for medium power synchronous machines in both land and marine power systems.

Product Features

• High-precision digital voltage regulation with fast response under load fluctuations
• Integrated power system stabilizer (PSS) to damp power oscillations
• Full set of generator protective functions including overexcitation, underexcitation and current limiting
• Separate control and communication processors for stable operation
• Ethernet and fieldbus communication for remote monitoring and SCADA integration
• Supports CMT1000 PC tool for commissioning, parameter setting and fault diagnosis
• Compliant with international grid codes for grid-connected power generation units
• Compact rack-mounted design for simple cabinet installation and spare replacement

Application Scenarios

• Diesel and gas generator sets for on-site and backup power plants
• Small-to-medium hydro, steam and gas turbine synchronous generators
• Marine vessel auxiliary generators and electric propulsion power systems
• Oil & gas offshore and on-site generator excitation control
• Industrial power plants, data centers, hospital and airport critical power supplies
• Retrofit and upgrade of old generator excitation control cabinets

FAQ