Woodward UG Universal Governors
Woodward’s UG “universal” governors are mechanical-hydraulic governors for controlling diesel, gas, or dual fuel engines, or steam turbines. This proven design has been an industry standard for many years. Worldwide acceptance provides easy service in most engine and governor shops.
UG governors have their own self-contained oil supply and are driven by a suitable UG drive from an engine or turbine. They operate either isochronously or in droop, and have a wide variety of optional features for use in generator, pump, marine propulsion, and other applications. UG governors have a maximum drive speed of 1500 to 1600 rpm.
The UG-25+ governor is a microprocessor-controlled, mechanical-hydraulic amplified, governor for controlling diesel, gas, and dual fuel engines, and steam turbines. The UG-25+ offers enhanced control capabilities, such as start fuel and boost limiting schemes. The additional transient fuel limiting (jump-rate) improves the engine load acceptance and reduces transient emissions significantly.
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The UG-5.7/8/10 governor is a mechanical-hydraulic governor for controlling diesel, gas, or dual fuel engines, or steam turbines. These
governors (generally known as “UG-8”) are available in either a UG dial or UG lever configuration.UG dial governors are particularly suited for constant speed applications. Knob speed settings make synchronization easy for generator applications. Motor speed setting is available for remote synchronization. Adjustable droop makes load sharing between engines precise.
UG lever governors are widely used for variable speed control. Remote speed setting can be either mechanical through the speed setting lever or pneumatic with a special speed setting device. Special attachments are available for other applications.
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UG-40 governors are used for speed or load control of larger dual fuel, diesel, or gas engines or steam turbines, with governor drive speeds of 350 to 1050 or 550 to 1300 rpm. Governors with lever speed setting are primarily used for propulsion engines. Dial or motor speed setting is primarily used for power generation installations.
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The UG-MAS (milliamp speed setting) controls the speed or power of prime movers used for propulsion, locomotives, pumps, and compressors. The UG-MAS speed-setting governor is a generic module that can be used on most engines with a UG drive. The UG-MAS consists of a standard UG dial governor equipped with a special cover assembly and a separate electronic driver box.
The UG-MAS is a pressure-compensated, hydraulic governor designed to accept a standard 4-20 mA electrical current signal to set the speed of the governor. An internal pump, relief valve, and accumulator system maintain the governor operating pressure. A self-contained sump stores the oil and so reduces the possibility of contamination from outside sources.
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