Woodward SPM-D11 Series Load Share Synchronizer

The SPM-D11 is a microprocessor-based synchronizer designed for use on one or three-phase AC generators equipped with Woodward or other compatible speed controls and automatic voltage regulators. The SPM-D11 synchronizer provides automatic frequency, phase and voltage matching using either analog- or discrete output bias signals. It combines synchronizing for one circuit breaker, load and power factor control or isochronous load sharing and generator protection.

DESCRIPTION :

Synchronizing 

· Phase match or slip frequency synchronization with voltage matching 

· Two-phase sensing of generator and bus 

· Selectable operating modes like SPM-A (Run, Check, Permissive, and OFF)

· Synchro-check possible 

· Synchronization time monitoring

· Load/var sharing

 Mains parallel operation 

· Real power control 

· True RMS power calculation

· Generator real power setpoint by parameter (2 values) or via 0/4 to 20 mA 

· Soft unloading 

· Power factor control 

· Power factor setpoint by parameter 

· Power limit value with relay output 

Isolated operation

· Frequency control

· Voltage control

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B&R 0TB103.91