Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Description |
|---|---|
| Product Name | Digital Synchronizer and Load Controller |
| Model Number | 9905-795 |
| Brand | Woodward |
| Product Type | Generator Synchronizer and Load Control Module |
| Function | Provides automatic synchronization, load sharing, and power management for generator systems |
| Input Voltage | 18–32 VDC nominal |
| Power Consumption | 25 W typical |
| Frequency Range | 45–65 Hz |
| Voltage Sensing Range | 90–480 VAC, 3-phase |
| Synchronizing Accuracy | ±0.05 Hz frequency, ±2° phase angle |
| Load Control Type | Isochronous or droop load sharing |
| Control Output | Analog and discrete output signals for speed and voltage regulation |
| Communication Interface | RS-232 and CANopen (optional) |
| Display | Multi-function LED indicators for status and fault monitoring |
| Protection Features | Overvoltage, reverse polarity, phase loss, and thermal protection |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -55°C to +105°C |
| Humidity | Up to 95% non-condensing |
| Vibration Resistance | 5 g, 10–500 Hz |
| Shock Resistance | 20 g, 11 ms |
| Mounting Type | Panel mount |
| Enclosure Rating | IP65 (front panel sealed) |
| Dimensions | 311 × 173 × 65 mm |
| Weight | 1.36 kg |
FAQ
FAQ
Q1: What is the main purpose of the Woodward 9905-795 Digital Synchronizer and Load Controller?
A1: It is designed to automatically synchronize multiple generators to a common bus and manage load sharing to ensure stable and efficient power generation.
Q2: How does the synchronizer detect synchronization conditions?
A2: The unit continuously monitors voltage, frequency, and phase angle between the generator and the bus to initiate synchronization when parameters match within specified limits.
Q3: What types of generators can this controller be used with?
A3: It supports both diesel and gas engine-driven generators and can be integrated with Woodward or third-party speed and voltage control systems.
Q4: How is load sharing managed between multiple generators?
A4: The controller uses analog and digital communication to distribute load proportionally across all connected generators, maintaining system balance and preventing overloads.
Q5: What communication protocols does the 9905-795 support?
A5: It supports RS-232 for configuration and monitoring, with optional CANopen for networked generator control applications.
Q6: Can the unit provide protection during synchronization errors?
A6: Yes, it automatically prevents breaker closure if frequency, voltage, or phase angle are outside safe limits, protecting the generator and grid equipment.
Q7: Is it possible to adjust synchronization and load-sharing parameters?
A7: Yes, all control parameters including frequency, voltage thresholds, and load bias can be configured through software or front-panel interface.
Q8: In what applications is the 9905-795 typically used?
A8: It is commonly used in power plants, marine systems, and industrial facilities requiring precise generator synchronization, load management, and automatic paralleling control.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
