ABB UNITROL 1010 BASIC Excitation Voltage Regulator

Feature & Principle

It belongs to ABB UNITROL1000 excitation series. It samples generator voltage and current signals in real time, adjusts IGBT excitation output to stabilize generator terminal voltage. It supports AVR, VAR, power factor and manual excitation control modes. With complete protection functions such as overexcitation, underexcitation, loss of voltage and overcurrent. Fanless natural cooling design, supports wide auxiliary power input, communicates with SCADA via Modbus TCP / RTU, suitable for small and medium synchronous generator sets.

Specifications

Model: 3BHE035301R0003 (UNITROL1010 BASIC) Brand: ABB Continuous excitation output: 10ADC Peak excitation current: 25ADC Auxiliary power: 60~265VAC / 50~300VDC Voltage regulation accuracy: ±0.5% Communication: Modbus TCP Ethernet, Modbus RTU RS485, CAN bus Cooling: Fanless natural cooling Protection class: IP20 Application: Diesel generator, hydro generator, small steam turbine generator Certification: CE, UL

Components & Diagnostics

Main control board, IGBT power unit, signal acquisition circuit, terminal block, status indicator LED. Common faults: excitation loss, voltage unstable, communication disconnection, power supply failure, parameter out of calibration.

Product Brief

3BHE035301R0003 excitation regulator, ABB generator excitation spare widely used for power plant and genset excitation cabinet maintenance and replacement.