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ABB UNITROL 1020｜Automatic Voltage Regulator｜
Parameter
1. Electrical parameters
Auxiliary power supply: 1-phase 16-250 VAC/3-phase 9-250 VAC; Or 18-300 VDC eero
Measurement voltage: AC 0-120/240 V (terminal voltage)
Adjustment accuracy: ± 0.2% (voltage)
Response time: ≤ 5 ms
Control modes: AVR (voltage), FCR (excitation current), reactive power Q, power factor cos φ
2. I/O and Communication
Digital input: 8 channels; Digital output: 4 channels; Analog input: 2 channels
Communication interface: RS-485 (Modbus RTU)+Ethernet TCP/IP+USB
Programming software: CMT 1000 (configuration/monitoring/diagnosis/simulation)
Diagnostic variables:>35, supporting remote monitoring and fault tracing
3. Environment and Machinery
Working temperature: -20 ℃~+55 ℃ (up to 70 ℃, derating required)
Protection level: IP20 (body), IP54 (front panel)
Dimensions (W × H × D): Approximately 230 × 160 × 80 mm
Weight: Approximately 5 kg
Function
High precision voltage regulation: dual processors (control+communication), adaptive PID, suppresses voltage fluctuations.
Multi mode operation: AVR/FCR/reactive power/power factor regulation, seamless switching.
Grid adaptation: Fault ride through (FRT), V/Hz protection, over excitation/under excitation/demagnetization protection.
Parallel operation: Advanced load sharing, automatic synchronization, rotating diode monitoring (RDM) ABB Group.
Dual channel redundancy: primary and backup switching, zero shutdown of critical units.
PSS stabilizer: suppresses low-frequency oscillations in the power grid and enhances system stability.
ABB UNITROL 1020｜Automatic Voltage Regulator｜
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