Featuring electronic controls with a digital display, the GPU-28-CUP 28.5V DC Ground Power Unit is a very rugged, compact and silent Ground Power Unit, which provides 800 amps continuous and 2000 amps peak to provide power supply for starting aircraft. Its large engine ensures a good performance in the worst overload applications. The TLD GPU-28 features a brushless revolving field generator, rubber torsion axle-mounted chassis of rugged galvanized steel construction with fifth wheel steering and powdercoated sheet metal panels. The GPU-28 meets U.S. EPA 40CFR 1039.625 and California 13 CCR 2423(d) emissions standards for nonroad engines.
Generator Specifications (generator rectifier assembly) – TLD generator rectifier assembly directly provides 28.5VDC output. The generator has 2 sets of 400HZ main stator wings, one set connected in Delta and the other a low voltage AC generator (around 21 to 22 VAC). It is brushless, revolving field, self-cooling, and single bearing with rotating rectifier assembly.
Compares to Tronair/Arvico 28.5V DC Diesel GPU, part numbers 112820C, 112820C1, 112820C2, and 112820CS.