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Woodward 8915-948
Product Description: The 8915-948 is a microprocessor-based digital synchronizer and load control module engineered for microgrid management, cogeneration plants, and critical emergency power networks. It acts as the primary intelligence hub for paralleling single or multiple engine-driven generators with a main utility bus or with each other. The module integrates automatic phase matching, voltage alignment, breaker closure logic, and real-power/reactive-power load sharing into a single ruggedized unit, eliminating the need for complex multi-relay synchronizing panels.
Detailed content
Technical Specifications:
- Manufacturer: Woodward, Inc.
- Product Family: DSLC™ (Digital Synchronizer and Load Control)
- Primary Functions: Auto-synchronizing, kW/kVAR load sharing, process import/export control, voltage matching
- System Compatibility: Woodward 2301A, 723, 505 series, and standard speed bias interface controls
- Network Interface: Echelon® LonWorks inter-module communication network
- Potential Transformer (PT) Input: Configurable 100–120 VAC / 200–240 VAC direct sensing (Bus & Generator)
- Current Transformer (CT) Input: 5 A or 1 A secondary rated CT inputs
- Operating Voltage: 18–32 VDC nominal (24 VDC industrial standard)
- Output Voltage Range: 0–10 VDC
- Output Power: 10 W
- Operating Temperature: -40 °C to +70 °C (-40 °F to 158 °F)
Functional Features:
- Real-time load telemetry transmission to other DSLC units or Woodward MSLC (Master Synchronizer and Load Control) controllers via integrated Echelon network bus
- Prevents out-of-phase breaker closure, line surges, and generator trip faults during critical utility transfers
- Compact ruggedized design for harsh industrial environments
Application Scenarios:
- Paralleling operations in power plants and offshore production platforms
- Microgrid management and cogeneration (CHP) plants
- Critical emergency power generation networks
- Multi-unit diesel generator set load transfer
Installation & Usage Notes:
- Ensure proper shielded wiring for all PT, CT, and network connections per Woodward DSLC manual 02007
- Verify PT ratio configuration matches the bus and generator voltage levels before energizing
- Install in a control panel environment within the specified -40 °C to +70 °C operating temperature range
