Présentation du produit
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 sur 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 sur 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 |
|---|---|
| Modèle 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 |
| Poids | 2.54 kg |
| Certifications | CE, UL, CSA, RoHS compliant |
Applications
-
Power Generation Plants: Enables synchronized startup and load balancing sur gensets operating in parallel or with utility mains.
-
Data Centers: Maintains uninterrupted power during transfer from utility to generator power during outages.
-
Marine Systems: Synchronizes onboard generators to propulsion or auxiliary power buses in marine applications.
-
Microgrids and Remote Installations: Seamlessly manages synchronization and load share in surf-grid or hybrid energy systems.
-
Industrial Manufacturing: Ensures smooth power transition and load balancing in multi-generator environments.
-
Critical Infrastructure: Used in hospitals, airports, and emergency power systems where synchronization must be flawless.
Advantages
-
Integrated Synchronization and Load Control: Combines two critical functions into a single, compact unité.
-
Precision Control: Maintains extremely tight phase and frequency tolerances for accurate breaker closure.
-
Automatic Breaker Operation: Reduces the need for manual intervention during synchronization.
-
Flexible Configuration: Programmable I/O and adjustable sync parameters suit a wide variety sur system needs.
-
Digital Communication Ready: Equipped with RS-232/RS-485 and optional CANopen for SCADA/DCS integration.
-
Multi-mode Load Sharing: Supports both isochronous and droop operation to suit site conditions.
-
Rugged and Reliable: Built for long-term operation in harsh industrial and marine environments.
-
Diagnostics and Monitoring: Real-time feedback on frequency, phase, voltage, and load sharing status.
-
Compact Design: Enregistrers space in control panels while reducing wiring complexity.
-
Compliance and Safety: Meets global industrial control and electrical safety standards.
Questions fréquentes (FAQ)
-
Q: What is the main function sur the 9905-795 controller?
A: It automatically synchronizes generators with a live bus and distributes load evenly among generators. -
Q: Is the unité 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-unité load sharing. -
Q: What type sur 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 unité 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 sur protection features are included in the controller?
A: It includes system protections such as loss-sur-signal detection, out-sur-sync condition monitoring, and configurable fail-safes.
Related Modèles (Same Series or Functionality)
| Modèle Number | Description | Primary Function | Dimensions (mm) | Poids (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 Modèles
| Modèle Number | Description | Function | Dimensions (mm) | Poids (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 |
Informations sur l'entreprise
E-mail: [email protected]
Mobile：Contactez-nous par email
Whatsapp：Contactez-nous par email
Add: Alishan Building, 2 Lvling Rd, District Siming, Xiamen, Fujian, Chine, 361006
Nos services
Nous sommes spécialisés dans la fourniture de pièces d'automatisation industrielle avec une garantie d'un an. Nos pièces d'automatisation industrielle sont vendues dans le monde entier.
Nous pouvons fournir des équipements et des pièces détachées de différents pays et fabricants, résoudre vos inquiétudes ou problèmes de qualité en de nombreux endroits, et surfrir un excellent avantage de prix.
N'hésitez pas à nous appeler pour plus de détails sur les produits.