Smart Power Systems HR-12 50 Hz - Manual (Page 7)

Smart Power
®
Systems
A. C. MODULAR GENERATOR SYSTEM
Page 6 of 54
Description of Product
Hydraulic Generator Applications:
These heavy-duty electronically controlled generator systems have been designed to meet
the most demanding mobile applications. The HR-15 provides 15000 watts @ 120/240
VAC @ 60 Hz. The HR-12 provides 12000 watts @ 115/230 VAC @ 50 Hz.
How Our System Works:
A generator driven by a hydraulic motor delivers the electrical power. The motor turns at
1800 RPM for the HR-15, or 1500 RPM for the HR-12, as controlled by the flow of
hydraulic fluid through an electrically controlled proportional valve. The proportional valve
is directly driven by the system controller. The piston pump delivers fluid to the
proportional valve driven by an installer-supplied PTO mounted to the vehicle’s
transmission.
Heat generated in the hydraulic fluid as it passes through the various components in the
system is cooled by a heat exchanger and fan. A filter removes impurities in the fluid. A
venturi boost assembly monitors the volume of oil in the hydraulic circuit and feeds the
system from the reservoir as needed.
Essentially the only system maintenance required is periodic replacement of the hydraulic
fluid filter and adding hydraulic fluid to maintain the fluid level between ½ and ¾ full in the
sight gage.
Generator hydraulic and electrical schematics: see Figure 1 and Figure 2.