U.S. Environmental Protection Agency, 26 W. Martin Luther King Dr., Cincinnati, OH 45268

66 -- DIRECT CURRENT DYNAMOMETERS AND CONTROLLERS SOL 97-44 POC Antoinette Clay E-MAIL: US EPA Cincinnati Contracts Management Division, clay.antoinette@epamail.epa.gov. The U.S. Environmental Protection Agency's Office of Mobile Sources (OMS) is seeking to obtain two Direct-Current (DC) dynamometers and two solid state controllers/drivers with speed and torque mode operation. The two dynamometers are needed for testing engines that are 1.5 liter displacement and smaller. The motoring and absorbing capacity of the two dynamometers shall provide the following nominal load/speed capabilities: (1) Dynamometer #1: 250 volt @ 110 amps, rated 40 HP absorbing, 30 HP driving @ 1000/4000 RPM, including new blower motors, drive hub, check arms and torque arm linkage, 60 tooth wheel assembly, stator lock (manual), trunnion mounted on a base measuring 50X50X6" with a shaft centerline of 22 inches, 250 volt field excitation; and (2) Dynamometer #2: 250 volt @ 275 amps, rated 100 HP as an absorber, 75 HP as a motor, 1500/4500 RPM, 250 volt field excitation with new blower motors, stator lock, 60 tooth gear assembly, check arms, torque arm linkage, trunnion bearing rotators, trunnionmounted on a base measuring 52X50X6" with a shaft centerline of 22 inches. Remanufactured dynamometers that meet the above specifications will also be considered. The two complete dynamometer solid state controllers/drivers shall be sized, designed, and manufactured specifically for the two dynamometers. The two controllers/drivers shall include 1 Nema 1 enclosure completely wired and tested, 1 Control Techniques Quantum III 4 Quadrant Digital SCR Drive, 1 Disconnect with flange mounted handle, 2 door mounted meters armature volts/amps, 2 operator control panel with illuminated control functions (dynamometer start/stop, E stop, torque/speed selector, speed & torque precision dial indicator 10 turn potentiometers, dynamometer digital speed & torque displays, auxilliary motor start/stop and drive fault indicator). Installation and startup for the dynamometers and controllers is required. EPA shall provide in the test cell all the power feeds based on the specifications of the dynamometers. EPA shall also provide load cell, encoder and isolation transfer before system delivery. Issue date for the solicitation document will be approximately October 1, 1997. This is a small business set-aside. The applicable SIC Code is 3826. All interested parties should submit a request in writing to Antoinette Clay at the above address or by fax (513-366-2107). TELEPHONE REQUESTS WILL NOT BE HONORED. (0260)

Loren Data Corp. http://www.ld.com (SYN# 0226 19970919\66-0004.SOL)