Woodward 9907-028 SPM-A Synchronizer Module
Description:
The SPM-A Synchronizer biases the speed of an off-line generator set so that the frequency and phase match those of another generator or the utility bus.
Then it automatically issues a contact closure signal to close the circuit breaker between the two when frequency and phase are matched within limits for a specified match-up time.
The SPM-A is a phase-locked-loop synchronizer and strives for a perfect match of frequency and phase. The SPM-A Synchronizer with voltage matching generates additional raise and lower signals (relay contact closures) to the
generator's voltage regulator. Voltages must match within the SPM-A's tolerance before breaker closure occurs.
For single-unit synchronization, installation of one synchronizer on each generator allows each unit to be individually paralleled to the bus. For multipleunit synchronization, one synchronizer can synchronize up to seven paralleled
generator units simultaneously to another bus.
Both synchronizers versions have three output options: high impedance, low impedance, and EPG. Select the high impedance output for single-unit synchronization when the engine is controlled by a Woodward 2301 control.
Select the low impedance output for single-unit synchronization when the engine is controlled by a Woodward 2301A, 2500, or Electrically Powered Governor (EPG) control through a Generator Load Sensor. Use the EPG output when using a Woodward EPG control without load sensing. Both units have the following features:
 120 or 208/240 Vac input
 10 degree phase window
 1/8, 1/4, 1/2, or 1 second dwell time (internally switch selectable, factory set for 1/2 second)
The SPM-A Synchronizer with voltage matching has a 1% voltage match as standard. See the part number chart for other options.
Warranty: 12 months.
Lead time: 1-2 working days.
Terms of payment:T/T and Western Union.
Courier partners: DHL, UPS, TNT, FedEx and EMS.
Technical specification, manuals and data sheets
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