Produkteinführung
The Woodward 9905-795 Digital Synchronizer and Load Controller is a highly integrated and intelligent control solution engineered to automate the synchronization and load sharing von generator sets operating in both isolated and utility-parallel systems. This advanced controller combines automatic generator synchronizing, breaker control, and real-time load distribution in a compact digital module designed for high-reliability power generation systems.
As part von Woodward’s SPM-D (Synchronizer and Paralleling Module – Digital) product line, the 9905-795 provides precise phase, voltage, and frequency matching, ensuring seamless synchronization with minimal manual intervention. It features a robust digital architecture, configurable I/O, and communication capabilities that allow for easy integration into SCADA, DCS, and PLC environments.
Designed for mission-critical power applications, the 9905-795 improves generator efficiency, prevents overload conditions, and ensures uninterrupted power flow during synchronization, making it an essential component in backup, prime, and distributed energy generation systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Modell Number | 9905-795 |
| Product Type | Digital Synchronizer and Load Controller |
| Voltage Supply | 18 to 32 VDC |
| Power Consumption | < 15 W |
| Synchronizing Accuracy | ±0.25 Hz (frequency), ±5° (phase angle) |
| Voltage Matching Range | ±10% |
| Phase Angle Adjustment | 0–180° adjustable |
| Breaker Control Output | Relay output (dry contact) |
| Load Sharing Modes | Isochronous, Droop |
| Communication | RS-232 / RS-485 Modbus, optional CANopen |
| Analog Inputs | 2–4 configurable analog inputs (0–5 V / 4–20 mA) |
| Digital Inputs | 4 programmable discrete inputs |
| Actuator Output | PWM / 4–20 mA or 0–200 mA current output |
| Operating Temperature | –40 °C to +70 °C |
| Storage Temperature | –55 °C to +85 °C |
| Humidity Tolerance | 95% RH, non-condensing |
| Mounting Type | Panel mount |
| Housing | Rugged metal enclosure |
| Dimensions (H × W × D) | 311 × 173 × 65 mm |
| Gewicht | 2.54 kg |
| Certifications | CE, UL, CSA, RoHS compliant |
Applications
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Power Generation Plants: Enables synchronized startup and load balancing von gensets operating in parallel or with utility mains.
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Data Centers: Maintains uninterrupted power during transfer from utility to generator power during outages.
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Marine Systems: Synchronizes onboard generators to propulsion or auxiliary power buses in marine applications.
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Microgrids and Remote Installations: Seamlessly manages synchronization and load share in vonf-grid or hybrid energy systems.
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Industrial Manufacturing: Ensures smooth power transition and load balancing in multi-generator environments.
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Critical Infrastructure: Used in hospitals, airports, and emergency power systems where synchronization must be flawless.
Advantages
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Integrated Synchronization and Load Control: Combines two critical functions into a single, compact Stück.
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Precision Control: Maintains extremely tight phase and frequency tolerances for accurate breaker closure.
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Automatic Breaker Operation: Reduces the need for manual intervention during synchronization.
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Flexible Configuration: Programmable I/O and adjustable sync parameters suit a wide variety von system needs.
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Digital Communication Ready: Equipped with RS-232/RS-485 and optional CANopen for SCADA/DCS integration.
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Multi-mode Load Sharing: Supports both isochronous and droop operation to suit site conditions.
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Rugged and Reliable: Built for long-term operation in harsh industrial and marine environments.
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Diagnostics and Monitoring: Real-time feedback on frequency, phase, voltage, and load sharing status.
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Compact Design: Speicherns space in control panels while reducing wiring complexity.
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Compliance and Safety: Meets global industrial control and electrical safety standards.
Häufig gestellte Fragen (FAQ)
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Q: What is the main function von the 9905-795 controller?
A: It automatically synchronizes generators with a live bus and distributes load evenly among generators. -
Q: Is the Stück suitable for utility-parallel operation?
A: Yes, it is designed for both isolated bus and utility-parallel synchronization applications. -
Q: Can this controller manage multiple generators simultaneously?
A: Yes, when used in conjunction with compatible Woodward systems, it supports multi-Stück load sharing. -
Q: What type von communication protocols are available?
A: RS-232/RS-485 with Modbus protocol is standard, and CANopen is available as an option. -
Q: How is the breaker control handled?
A: The Stück provides a relay output for automated breaker closure when sync conditions are met. -
Q: What are the operating conditions for temperature and humidity?
A: It operates from –40 °C to +70 °C and tolerates 95% RH non-condensing environments. -
Q: Is it compatible with legacy analog governor systems?
A: Yes, it can interface with both digital and analog actuators or governor inputs. -
Q: Does it provide real-time status monitoring?
A: Yes, status indicators and Modbus data provide live operational diagnostics. -
Q: Can I adjust sync parameters manually?
A: Yes, parameters such as frequency, voltage match, and phase angle are user-configurable. -
Q: What kind von protection features are included in the controller?
A: It includes system protections such as loss-von-signal detection, out-von-sync condition monitoring, and configurable fail-safes.
Related Modells (Same Series or Functionality)
| Modell Number | Beschreibung | Primary Function | Dimensions (mm) | Gewicht (kg) |
|---|---|---|---|---|
| 9905-796 | Enhanced synchronizer with dual breaker logic | Utility-to-generator sync | 160 × 160 × 110 | 2.2 |
| 9905-797 | Sync & load controller with remote start | Auto sync/start and load share | 160 × 160 × 110 | 2.1 |
| 9905-068 | Load sharing speed controller | Speed control and load sharing | 160 × 160 × 105 | 2.1 |
| 9905-264 | Digital controller with advanced I/O | Engine/generator control | 160 × 160 × 105 | 2.1 |
| 9905-002 | SPM-A Synchronizer | Basic auto-synchronizer | 171 × 171 × 140 | 2.2 |
| 2301E | Digital load sharing & speed control | Governor control | 180 × 180 × 130 | 2.2 |
Popular Woodward Modells
| Modell Number | Beschreibung | Function | Dimensions (mm) | Gewicht (kg) |
|---|---|---|---|---|
| 2301A-G | Analog speed/load sharing controller | Engine speed/load control | 160 × 160 × 120 | 1.9 |
| 723PLUS | Advanced engine and turbine controller | Complete digital control system | 200 × 200 × 120 | 2.5 |
| 505E | Steam turbine digital control | Turbine automation and governor | 270 × 250 × 130 | 3.2 |
| 9905-263 | Digital speed control module | PID-based speed controller | 160 × 160 × 105 | 2.1 |
| 8440-2080 | EasyGen 3200 generator controller | Genset control and protection | 244 × 175 × 100 | 2.0 |
| 9905-795 | Digital synchronizer & load controller | Sync and load balance | 160 × 160 × 110 | 2.1 |
Unternehmensinformationen
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