Terex Light Construction has expanded its Super Quiet generator set line with the introduction of a new model targeted toward rental and construction site applications. With a prime power output of 36 kW (45 kVa), the T45 gen-set helps fill out the lower half of the Super Quiet range that spans a total output of 16 to 325 kW (20 to 406 kVa).
The T45 gen-set is powered by a four-cylinder, turbocharged Tier 2 complaint Isuzu 4JGIT engine rated 66 hp at 1800 rpm. The engine package also includes a Denso radiator with an adjustable pitch Breeza fan, Woodward electronic governor system, Nelson muffler, Donaldson air cleaner, Racor fuel water separator and AmeriStart lead acid battery. The power unit is packaged by Engines Plus Inc., Springfield, Mo., which designs and assembles power units for Isuzu PowerTrain and its distributors.
The engine drives a brushless, four-pole Newage/Stamford synchronous single bearing generator with Class H insulation. The T45 generator can deliver both single- and three-phase power simultaneously. Three-phase service is available on the distribution side of the unit, while single-phase receptacles are offered on the control panel, all of which allow the operator to run both power sources at the same time. Three-phase power is available at 208, 220, 240, 416, 440 and 480 V, with 600 V output available as an option. Standard single-phase outputs are 120, 127, 139, 240, 254 and 277 V.
The control panel incorporates a series of VDO analog gauges that aid in monitoring both engine and generator status and functions. Engine gauges display water temperature, oil pressure, engine hours, fuel level and battery voltage. Power output gauges indicate volts, amps and frequency. A DynaGen E852 engine control module provides automatic shutdown in case of a fault or hazardous engine condition. Auto start/stop capability is standard on all Terex Super Quiet generators.
All of the Super Quiet generators come with a five-lug distribution board that has the ground connection in the distribution panel with the other connections. A recessed plug connector in the control panel allows for connection of a range of equipment needing external power sources, such as block heaters and battery chargers. A voltage adjust potentiometer switch, also accessible from the panel, allows selection of desired voltages. The switch is lockable to prevent damage by changing voltages while the unit is running.
The T45 generator has a 64 gal. fuel tank that provides a run 6me of 29 hours at 75% load, the company said. The fuel tank is incorporated into the base structure of the generator and the base also incorporates a containment system that will capture and hold 110% of all finds used--including engine oil and coolant--with no discharge to the environment.
To reduce noise emissions, the engine and generator sections, including the muffler, are completely enclosed within a sound-attenuated housing that incorporates an overlapping design in which the hood overlaps the side panels and the side panel overlaps the sides of the base. This design, Terex said, eliminates gaps that can allow noise to escape.
A new rear louver panel assembly is designed to provide single-direction airflow through the housing, which reduces average noise levels and also reduces corrosion hot spots, the company said. The T45 gen-set offers sound ratings at load of 65 dB(A) at 23 ft., Terex said.
The louvers are constructed of painted aluminum for long-lasting corrosion prevention and are overlapped to prevent rain from being pulled into the housing. The rear inside panel is covered with half-inch perforated wire mesh to keep out other unwanted debris.
Like other Terex trailer-mounted gen-sets, the T45 is built onto a heavy-duty DOT-approved trailer with a full light package, and bolt-on fenders. The heavy-gauge steal flame allows the generator to be set with the flame rails, giving the package a lower profile and providing easier towing.
"Everything is set up to give easy access for service," said John Gibbons, marketing manager for Terex Light Construction. "If you look at how the doors on this model are designed, it's almost like one door extending from one end to the other.
"Because of that, you have better access to the battery, we installed the Racor unit up higher and moved the connections over so you can put a container underneath when you want to drain it. We've got valves that let you drain the antifreeze and change it for the season and we've got a 1 in. ball valve for changing the oil.
"On the power side, everything is closed. On most competitive sets, you see a lot of exposed wires and if you open the unit up and run a pressure washer over it--something you know happens in the field--eventually, there are going to be problems. Everything on our units is precision enclosed. We've even got weep holes down on the bottom that let the water drain out in areas when spill containment is not an issue.
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