Excellent PLC
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| Mobile | +8613666033393 | |||||||
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The ABB UNS 0869A-P,V2 (also known as UNS0869A or UNS0869A-P) Power System Stabiliser is a high-performance control module designed to enhance the dynamic stability of electrical power networks. By applying advanced damping algorithms, it reduces oscillations in generator output caused by sudden load changes or system disturbances. This stabiliser is engineered to integrate seamlessly with ABB excitation systems and distributed control systems (DCS), ensuring improved grid reliability and optimal generator performance.
Built for demanding industrial environments, the UNS 0869A-P,V2 is ideal for power plants, utility substations, and large industrial facilities that require precise voltage regulation and oscillation damping. Its rugged construction, advanced signal processing, and wide operating temperature range allow long-term, maintenance-friendly operation.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | UNS 0869a-P,V2/UNS0869A/UNS0869A-P |
| Type | Power System Stabiliser Module |
| Function | Damping of generator oscillations and improving grid stability |
| Supported Systems | Compatible with ABB excitation systems and ABB DCS platforms |
| Control Algorithm | Adaptive PID and lead-lag compensation |
| Input Signals | Generator electrical parameters (voltage, frequency, current) |
| Output Signals | Excitation control signals |
| Power Supply Voltage | 24 V DC nominal (tolerates ±10%) |
| Communication Interfaces | Standard ABB fieldbus/serial interfaces |
| Isolation Voltage | 1500 V RMS between field and logic circuits |
| Operating Temperature | –20 °C to +70 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity Tolerance | 5% to 95% non-condensing |
| Dimensions (W × H × D) | 220 × 45 × 140 mm |
| Weight | 0.11 kg |
| Mounting Method | DIN-rail or panel mounting |
| Housing Material | Industrial-grade reinforced polymer |
Applications
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Power Generation Plants: Maintains generator stability by damping low-frequency oscillations.
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Utility Substations: Enhances voltage control and system damping to ensure reliable power distribution.
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Industrial Facilities: Ideal for heavy industry with large motor loads requiring stable power supply.
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Renewable Energy Integration: Improves grid stability when integrating wind or solar power sources.
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Microgrid and Smart Grid Systems: Provides fast response for fluctuating loads and distributed generation.
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Critical Infrastructure: Ensures uninterrupted operation in hospitals, data centers, and transportation hubs.
Advantages
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Enhanced Grid Stability: Reduces oscillations and prevents voltage swings during disturbances.
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Adaptive Control: Advanced algorithms automatically adjust to varying system conditions.
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Seamless ABB Integration: Optimized for ABB excitation and DCS platforms for minimal configuration effort.
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High Electrical Isolation: 1500 V RMS isolation ensures robust protection against electrical noise and surges.
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Rugged Construction: Withstands extreme temperatures and humidity, guaranteeing long service life.
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Flexible Installation: Compact size and DIN-rail or panel mounting options simplify cabinet integration.
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Reliable Operation: Designed for continuous, mission-critical power system applications.
FAQ
1. What is the primary role of the UNS 0869A-P,V2 power system stabiliser?
It dampens generator oscillations and improves dynamic stability of power systems by adjusting excitation control signals in real time.
2. Which control algorithms are used for stabilisation?
The module employs adaptive PID and lead-lag compensation algorithms to provide fast and accurate damping under varying load conditions.
3. What input signals does the unit require?
It processes generator electrical parameters such as voltage, current, and frequency for precise control of excitation output.
4. What type of output signals does it generate?
The stabiliser provides excitation control signals that interface directly with ABB excitation systems to regulate generator field voltage.
5. Is it compatible with non-ABB excitation systems?
While optimized for ABB platforms, it can be integrated with other systems when standard industrial communication protocols are supported.
6. What is the operating temperature range?
The device operates reliably from –20 °C to +70 °C, making it suitable for a variety of industrial environments.
7. What is the required power supply?
A nominal 24 V DC supply is required, with a tolerance of ±10% to accommodate voltage fluctuations.
8. How is electrical isolation achieved?
It provides 1500 V RMS isolation between field wiring and internal logic, ensuring safety and signal integrity.
9. Can it be mounted in different configurations?
Yes, it supports both DIN-rail and panel mounting for flexible installation within control cabinets.
10. How does it enhance renewable energy integration?
By quickly damping frequency and voltage oscillations, it stabilizes power networks that include variable renewable sources like wind or solar.
Related ABB Models (Same Series or Function)
| Model | Description |
|---|---|
| UNS 0867A-P,V2 | Extension card I/O for ABB DCS systems |
| UNS 0860A-P | Power system control module for grid stability |
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| UNS 0850C-P | Analog input/output extension card |
| UNS 0875A-V2 | Digital signal processing extension card |
| UNS 0890D-P | Multi-protocol I/O interface module |
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