9905-374

About the 9905-374

This unit is model number 9905-374, a microprocessor-based Digital Synchronizer and Load Control manufactured by Woodward. This model is designed to be used in the paralleling, synchronizing, loading, and unloading of three-phase AC generator sets. 9905-374 does not have power factor control or process control functions, as it is one of the reduced upgrade level models in this Woodward series.

The 9905-374 model is designed for use with a Woodward speed control and an automatic voltage regulator (or another compatible device). The DSLC control has automatic generator loading functions. It is rated for use in operating temps from –40 to +70 °C (-40 to 158 F) and storage temps from –55 to +105 °C (-67 to 221 F). Additional environmental specifications for the 9905-374 are:

• Humidity …... 95% at 38 °C
• Mechanical shock …... US MIL-STD 810C, Method 516.2, Procedures I, II, V
• Electromagnetic susceptibility …... ANSI/IEEE C37.90.2; ANSI C37.90.1-1989
• Vibration …... US MIL-STD 167, Type I

Built-in diagnostics; automatic generator loading and unloading; setup, metering, and diagnostic capability through a handheld programmer terminal; droop, baseload, and isochronous load control capability; and reverse power relay are just a few of the available functions.

AX Control Inc. buys, sells, and repairs this unit.