ABB UNITROL1020 3BHE030579R0003 digital excitation controller

ABB UNITROL1020 3BHE030579R0003 – Product Description & Technical Specifications
Product Description
The ABB UNITROL1020 3BHE030579R0003 is a high-performance digital excitation controller, designed for synchronous generator excitation systems. It provides stable and precise excitation control, regulates generator terminal voltage and reactive power, with reliable anti-interference capability and flexible configuration, suitable for various industrial power generation, power transmission and distribution environments requiring stable and efficient operation.
Basic Information
Brand: ABB
Model: UNITROL1020 3BHE030579R0003
Product Type: Digital Excitation Controller
Weight: Approximately 1.2 kg (standard version)
Dimensions: Approximately 140 mm × 220 mm × 80 mm, fits standard 19-inch racks or ABB standard guide rails
Country of Origin: Switzerland (or Germany, depending on regional production)
HS Code: 8538900000 (for reference)
Temperature Specifications
Operating Temperature: -10 °C to +60 °C
Storage Temperature: -25 °C to +70 °C
Temperature Drift: ±0.02% per °C (voltage control)
Input Specifications
Power Input: 110/220 V AC/DC (±10%), max. 1.5 A
Bus Interface: Compatible with ABB Modbus, Profibus DP communication protocols
Input Signal: Generator terminal voltage (0–100 V AC), current (0–5 A AC), speed signal (0–10 V DC)
Input Resolution: 16-bit
Output Specifications
Number of Output Channels: 4 (fully isolated)
Output Signal: 4–20 mA DC (control signal), 0–10 V DC (feedback signal)
Load Resistance: 0–1000 Ω (for 4–20 mA output)
Isolation Voltage: 2000 V AC (output to system), 1000 V AC (between channels)
Response Time: ≤10 ms
Control Accuracy: ±0.2% of rated voltage

Physical & Environmental Parameters
Isolation: Channel-to-channel and field-to-system galvanic isolation
Vibration Resistance: 10–500 Hz, 0.1 g amplitude
Humidity: 5%–95% RH (non-condensing)
Protection Level: IP20 (standard), up to IP54 (industrial-grade)
Power Supply: 110/220 V AC/DC ±10%, power consumption ≤20 W (full load)

Key Features
1. High-precision digital excitation control, ensuring stable generator terminal voltage
2. Flexible communication compatibility, supporting multiple industrial protocols
3. Strong anti-interference capability and reliable isolation performance
4. Compact design, easy to install and integrate with existing systems
5. Easy maintenance, with built-in fault diagnosis and self-test functions

interface
*Output method: rear output
*Fast Ethernet: 3 slots, each slot supports 8 ports, with optional optical and electrical options
*Gigabit Ethernet: Provides 4 1000Base SFP slots
*CONSOLE port: RS232 (RJ45)
*Alarm port: 5.08mm spacing 3-pin Phoenix wiring terminal, 250VAC/220VDC 2 A
cable
*Twisted pair cable: 100m
*Multimode fiber: 1310nm, 2km (100Mbps); 1310nm, 500m (gigabit)
*Single mode fiber: 1310nm, 0-40km; 1550nm, 0-80km
source
*Input voltage: 110-220VDC/VAC, redundant input
*Connection terminal: 5.08mm spacing 5-pin Phoenix wiring terminal
*Power:<40W
mechanical properties
*Case: Aluminum model with fanless design
*Protection level: IP30
*Installation method: 19 inch 1U rack type
*Shell size: 440 mm * 44.5 mm * 370 mm (W * H * D), as shown in the attached image
*Impact, vibration, and drop: meet the requirements of IEC61850-3 5.5 CM level
*Weight: approximately 4.3kg

*10 Mbps forwarding speed: 14881pps
*100Mbps forwarding speed: 148810pps
*Transmission method: storage and forwarding
*System exchange bandwidth: 1.6Gbps
*Cache size: 1Mbits
*MAC address table: 2K