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PMG Specs
Dimensions and Weight in Shipping Box Shipping Box Length= 16 inches, Width= 10 inches Height=12 inches Weight? Shipping Box + PMG =72 pounds Weight? Shipping Box + PMG + 4.2 Inch Pulley + plus SK Bushing & Fasteners = 78 pounds Weight? Shipping Box + PMG + 5.0 Inch Pulley + plus SK Bushing & Fasteners = 80 pounds Dimensions and Weight of PMG (approximate) Weight, PMG = 59.2 pounds Overall approx length from end of fan cover to end of shaft = 356mm Shaft length= 65mm Shaft diameter = 45mm (we stock the 45mm Standard SK bushings to mount pulleys) Mounting bolt holes (center to center, length wise= 140mm Mounting bolt holes (center to center, across= 160mm Max width (from one side to the outside of the junction box= 238mm
Electrical Specs 60HZ models operate at 3600 RPMs, 50HZ models operate at 3000 RPMs PMG is designed to meet or exceed ANSI C84.1 standard when operating at 60hz PMG does not exceed max recommended 127V/254V ( no load) PMG is typically 115/230 or higher at full load (3000watts) measured after the head was 'soaked' for 90 minutes running. PMG required a load of 4224 watts as per three separate tests to observe the max voltage droop of 110/220 volts (ANSI Standard) PMG can carry 4KW loads for several hours if not all day without over heating in normal ambient temperatures, we rate the unit at 3KW continuous, we expect this even at ambient temps of 130F! Typical Harmonic Distortion = <3.9% Max load? as of 6/2010 I have had a 5.56 KW load on the generator test bench measured with a certified power analyzer. Voltage drooped to 224 volts, well within the ANSI standard for the North American Standard for commercial power, and far superior as per sine wave quality over typical synchronous generators with the same loads. I recently saw an uninformed purchaser comment that he thought the utterpower PMG was too small and he opted to buy a larger one, little did he realize his choice won't start or carry the same loads as the so called Utterpower 3KW. Others would claim this was 6KW unit! If you look at a few of the bargain 10KW generator heads sold, you'll see some touted as 10KW, and following that mention in their advertisement is a 6KW continuous rating, but in some cases that's only in low ambient, try it on a 110F day, and you might see excessive voltage droop at that loading! I need more load box, and possibly a larger prime mover on the test bench to put on more load AND measure it with the accuracy I want. Physical Dimensions (All sizes are approximate), do no drill holes based on this information! From back of fan housing to front bell end = 296mm from back of fan housing to end of shaft= 361mm Shaft diameter= 45mm Shaft Length =65mm Mounting holes 4 each Mounting holes inline with shaft =140mm centers Mounting holes perpendicular to shaft = 160mm From base to top of fan housing 215mm
Charts Temperature/Voltage Stabilization
Notes: Actual tests demonstrate amazing inductive motor starting characteristics, I will make an effort to get up actual pictures of the screens from the Power Analyzer etc. George B.
Charts
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