WOODWARD 5448-893 SPM-D1010B Generator Synchronizer

Product Brief Description

Woodward 5448-893 SPM-D1010B is a microprocessor-based automatic synchronizer for three-phase AC generators. It continuously monitors generator voltage, frequency and busbar conditions, automatically sends raise/lower bias signals to governor and AVR to match phase, frequency and voltage, then issues breaker close command at the ideal synchronizing point. It is a legacy panel mount synchronizer and the predecessor of the newer SPM-D2-1010B/X, widely stocked as spare part for genset control cabinets.

Product Features & Functions

• Automatic synchronization for one generator circuit breaker
• Matches frequency, phase angle and voltage between generator and utility bus
• Discrete raise/lower outputs to adjust speed governor and automatic voltage regulator
• Front panel LED synchroscope, digital readout for voltage, frequency and phase status
• Built-in protective blocking logic: prevents breaker closure if out-of-tolerance conditions exist
• RMS voltage measurement, high immunity to harmonic distortion and electrical noise
• Local keypad for parameter setup; password protection to lock configuration
• Diagnostic fault detection and alarm indicators for input signal loss
• Panel cutout mounting according to DIN 43700 standard, compact 144×72mm form factor

Application Scenarios

• Diesel and gas generator sets for grid paralleling
• Industrial captive power plants and CHP cogeneration systems
• Steam turbine and gas turbine generator synchronization packages
• Oil & gas on-site power generation and compressor skids
• Legacy control cabinet maintenance, spare replacement and retrofit projects

FAQ