Application Scenarios
Consider a power generation facility with multiple diesel generators operating in parallel to supply power to a local grid. The Woodward SPM-D11 units would be installed on each generator to ensure seamless synchronization before connecting to the bus. This prevents damaging out-of-phase connections. Furthermore, the SPM-D11 enables active power (kW) and reactive power (VAR) sharing among the generators, optimizing load distribution and improving overall system efficiency. In isolated operation, the SPM-D11 can also provide voltage and frequency control, ensuring a stable power supply to the connected loads.
Parameter
Main Parameters Value/Description Product Model SPM-D11 Manufacturer Woodward Product Category Synchronizer and Load Share Unit Voltage Measurement 1-phase / 2-wire or 3-phase True RMS voltage sensing of generator and bus. Rated Voltage Configurable for [1] 66/115 Vac or [4] 230/400 Vac systems. Frequency 50/60 Hz Control Outputs Discrete raise/lower for speed and voltage. Analog bias outputs for speed and voltage (configurable). Load Sharing Analog active and reactive load sharing lines. Synchronization Phase match or slip frequency synchronization with voltage matching. Display Two-line LCD for operation, alarm indication, and measuring values. LED synchronoscope. Communication PC configurable. Power Supply 12/24 Vdc Weight Approx. 800 g
Technical Principles and Innovative Values
- Innovation Point 1: Precise Synchronization. The SPM-D11 ensures accurate frequency, phase, and voltage matching before breaker closure, minimizing stress on generators and the electrical system.
- Innovation Point 2: Load Sharing Capabilities. It facilitates both active and reactive power sharing, allowing for efficient parallel operation of multiple generators.
- Innovation Point 3: Versatile Control Outputs. Offers both discrete and configurable analog bias outputs for controlling speed and voltage.
- Innovation Point 4: User-Friendly Interface. Features a clear two-line LCD display and LED synchronoscope for easy operation and commissioning.
Application Cases and Industry Value
In a remote mining site relying on multiple generators for its power needs, the Woodward SPM-D11 units ensure a stable and reliable power supply. By automatically synchronizing and sharing the load among the generators, the SPM-D11 maximizes fuel efficiency and prevents overloads on individual units. This leads to reduced operational costs and minimizes the risk of power outages, which are critical for continuous mining operations. The SPM-D11‘s ability to operate in isolated mode also provides a stable power source for critical equipment even when not connected to a larger grid.
Related Product Combination Solutions
- SPM-D10 Series: A similar synchronizer unit from Woodward, offering two-phase generator and bus measurement.
- SPM-D2-11 Series: A successor to the SPM-D line, offering enhanced features like USB connectivity and ToolKit configuration support.
- Woodward Speed Controls (e.g., 2301E): Compatible speed governors that work in conjunction with the SPM-D11 for precise speed control.
- Woodward Automatic Voltage Regulators (AVRs): AVRs that interface with the SPM-D11 for accurate voltage control.
- DSLC-2 (Digital Synchronizer and Load Control): A more advanced unit offering comprehensive power management functions.
- MSLC-2 (Master Synchronizer and Load Control): Used for synchronizing multiple generators to a bus and managing load sharing in larger power systems.
- Load Sharing Module (LSM): A module that can be used with the SPM-D11 to facilitate load sharing.
- easYprotec or HighPROTEC: Additional mains decoupling relays that may be required in certain applications.
Installation, Maintenance, and Full-Cycle Support
The Woodward SPM-D11 is designed for front panel flush mounting using a standard DIN 43 700 housing. Wiring connections for voltage sensing, control outputs, load sharing lines, power supply, and discrete inputs/outputs are clearly documented in the product manual. Configuration can be done directly via the front panel or through a PC. Routine maintenance is generally minimal. Woodward provides comprehensive product documentation, including installation and operation manuals. Their global network offers technical support, training, and repair services to ensure the long-term reliability and performance of the SPM-D11 units.
