Introduction to ABB UNITROL 1020 3BHE030579R0003
3BHE030579R0003 Product Overview
The ABB UNITROL 1020 (order code: 3BHE030579R0003) is a compact and high-stability static excitation controller, specifically engineered for small to medium-sized synchronous generators in industrial plants, renewable energy systems, and backup power stations. As a core component of the generator excitation system, it integrates precise voltage regulation, reactive power control, and comprehensive protection functions, ensuring the generator operates stably under varying load conditions and grid disturbances. Equipped with a user-friendly configuration interface and adaptive control algorithms, it automatically adjusts the excitation current to maintain the generator terminal voltage within ±0.5% of the rated value—critical for ensuring power quality and grid compatibility. Its modular design supports hot-swappable maintenance, allowing component replacement without shutting down the generator, while built-in self-diagnostics continuously monitor system status and trigger alarms for faults like overcurrent or under-voltage.
3BHE030579R0003 Technical Specifications
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Product Model: UNITROL 1020 (Order Code: 3BHE030579R0003)
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Product Type: Static Excitation Controller for Synchronous Generators
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Series Affiliation: ABB UNITROL Excitation System Series
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Core Functions: Generator terminal voltage regulation, reactive power control, grid disturbance compensation, fault protection
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Rated Generator Capacity: Suitable for 100kVA – 5MVA synchronous generators
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Voltage Regulation Performance: Voltage regulation accuracy ±0.5%; Response time ≤100ms; Steady-state voltage fluctuation ≤±0.2%
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Input/Output Signals: 4×analog inputs (4-20mA), 6×digital inputs, 4×relay outputs; Supports PT/CT signal acquisition
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Communication Interface: RS485, Ethernet; Supports Modbus RTU/TCP, IEC 61850 protocols
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Protection Features: Overcurrent protection, undervoltage/overvoltage protection, field short-circuit protection, temperature monitoring
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Power Supply: DC 24V ±20% or AC 110/220V; Power consumption ≤30W
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Operating Environment: Temperature -25°C to +70°C; Humidity 5-95% (non-condensing); IP40 protection rating
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Mechanical Features: 19-inch rack mount (2U); Dimensions 88mm×483mm×200mm (H×W×D); Weight ~3.5kg
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Certifications: CE, UL certified; Compliant with IEC 60034-1, IEEE 421.5 standards
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Special Functions: Parallel operation support, black start capability, self-tuning of control parameters
Recommended ABB Products
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ABB UNITROL 6000 3BHE036424R0101: A high-power excitation system for large generators (50MVA+), ideal for pairing with UNITROL 1020 in hybrid power plants.
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ABB REF615 1MRK504153-BEN: A protection relay that works with UNITROL 1020 to provide comprehensive generator fault protection.
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ABB PP846 3BSE042238R1: AC 800M CPU module that integrates UNITROL 1020’s data into large-scale power plant DCS.
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ABB CI854A 3BSE022363R1: Profibus DP module that extends UNITROL 1020’s connectivity to fieldbus networks.
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ABB AI835 3BDH000055R1: High-precision analog input module that enhances UNITROL 1020’s voltage/current measurement accuracy.
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ABB DSQC1030: Digital I/O module that transmits generator status signals to UNITROL 1020 for real-time control.
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ABB PS860 3BSE008545R1: Redundant power supply that ensures stable operation of UNITROL 1020 in critical applications.
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ABB CP635H 3BSE050199R1: 15-inch HMI panel that displays UNITROL 1020’s operating parameters and alarm information.
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ABB ACS580: Frequency converter that coordinates with UNITROL 1020 in renewable energy grid-connected systems.
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ABB PPC905AE101 3BHE014070R0101: Symphony®Plus CPU module that synchronizes control logic with UNITROL 1020 in power plant systems.
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