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ABB UNITROL1020 0007FULL+PSS Automatic voltage regulator
ABB UNITROL1020 0007FULL+PSS is a high-performance automatic voltage regulator (AVR) integrated with PSS (Power System Stabilizer) function, designed for large synchronous generators. By precisely controlling the generator excitation system, the regulator achieves stable regulation of voltage, reactive power and power factor. Meanwhile, the PSS function can suppress low-frequency oscillations in power systems and improve grid stability, suitable for large power plants, industrial captive power stations and other scenarios.
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ABB UNITROL1020 0007FULL+PSS Automatic voltage regulator
Specific Parameters
- Supply voltage: 90-300V DC / 85-265V AC, 50/60Hz
- Output current: Continuous 40A DC, peak 80A DC
- Voltage regulation accuracy: ±0.1%
- Response time: ≤3ms
- PSS regulation range: 0.1-2.0Hz (low-frequency oscillation suppression)
- Communication protocols: Ethernet/IP, Modbus/TCP, RS485
- Operating temperature range: -40°C to +70°C
- Storage temperature range: -40°C to +85°C
- Protection class: IP54
- Dimensions: 250mm×200mm×120mm
- Weight: 5.8kg
- Protection functions: Overvoltage, undervoltage, overexcitation, loss of excitation, overcurrent, temperature protection
- Control modes: Automatic voltage regulation, reactive power control, power factor control, remote control
Product Performance
- Ultra-high regulation accuracy: Voltage regulation accuracy of ±0.1% maintains stable generator voltage during severe load fluctuations, meeting strict voltage quality requirements of large power systems.
- PSS enhanced stability: Integrated power system stabilizer can effectively suppress 0.1-2.0Hz low-frequency oscillations, improve grid dynamic stability and reduce system fault risks.
- Extremely fast response: Response time ≤3ms can quickly respond to grid faults and load mutations, ensuring safe operation of generators.
- Wide environmental adaptability: -40°C to +70°C operating temperature range and IP54 protection class resist dust and moisture intrusion, adapting to complex environments in power plants.
- Comprehensive safety protection: Multiple protection functions monitor excitation system status in real time, and overexcitation protection can cut off output within 10 seconds to prevent equipment damage.
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