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ABB UNS0119A-Z,V1｜Automatic Voltage Regulator｜
Parameter
1. Electrical and excitation
Auxiliary power supply: 180-264 VAC single-phase/18-300 VDC
Measurement voltage: 0-120/240 VAC (machine end)
Voltage regulation accuracy: ± 0.2%
Response time: ≤ 5 ms
Control modes: AVR (voltage), FCR (excitation current), reactive power Q, power factor cos φ, PSS (power system stabilizer)
2. I/O and Communication
Digital input: 8 channels; Digital output: 4 channels; Analog input: 2 channels
Interface: Dual Ethernet (100Mbps)+RS-485 (Modbus RTU)+USB
Protocol: Modbus TCP/RTU, IEC 61850 (standard for this model), Profibus DP (optional)
Software: CMT 1000 (configuration/monitoring/diagnosis/simulation)
Certification: SIL2, DNV, UL
3. Environment and Machinery
Working temperature: -25 ℃~+70 ℃ (continuous)
Protection: IP20 (body), IP54 (front panel)
Dimensions (W × H × D): Approximately 230 × 160 × 80 mm
Weight: Approximately 3.7 kg
Core functionality
High precision voltage stabilization+PSS: suppresses low-frequency oscillations and improves power grid stability
Dual channel redundancy optional: supports primary backup switching, zero shutdown of critical units
Rotating diode monitoring (RDM): Real time detection of excitation rectifier diode faults
Advanced parallel load sharing: precise reactive power allocation when multiple machines are connected in parallel
Fault ride through (FRT)+V/Hz protection: Maintain unit operation in case of grid failure
Data/Event Log: Built in storage, supports remote fault tracing
ABB UNS0119A-Z,V1｜Automatic Voltage Regulator｜
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