Princeton Plasma Physics Laboratory (PPPL), operated by Princeton University under contract to the U.S. Department of Energy, is seeking interested sources to provide firm fixed price and technical proposals to design, fabricate, test, inspect, and deliver one (1) Switching Power Amplifier (SPA) for use on the National Spherical Torus Experiment (NSTX) located at PPPL in Princeton, New Jersey. The SPA is also known in the industry as a High Power DC-AC Inverter. PPPL’s specification is for a bipolar SPA and input filter capacitor to be used in a closed loop feedback system in the NSTX plasma physics research device. The SPA will be powered by a single 6-pulse thyristor rectifier DC source power supply provided by PPPL. The SPA Unit shall consist of three independently controlled sub-unit SPAs which can be configured for operation as three independent units or as a single unit. In all cases the SPA will be fed from the same single DC source power supply. Each SPA sub-unit shall consist of an H-bridge PWM inverter capable of 4-quadrant operation (+/-voltage and +/- current to load). A detailed specification for the SPA will be included with the RFP. PPPL desires to have the SPA delivered on or about May 15, 2004. This announcement is not an RFP. RFP 04-007-G will be issued on or about December 15, 2003 and will be available for download from PPPL's public website: http://oorm-1.pppl.gov/public/procurement/. Proposals will be due by close of business (5:00 PM EST) on or about Friday, January 16, 2004. Statements of interest or questions concerning the SPA solicitation should be sent to the RFP Coordinator, Sharon Warkala via email [email protected] and must include the Company name and address and the name, telephone number, fax number and email address of the responsible point of contact for this action. Further information about PPPL and the NSTX project can be obtained from the PPPL public website at www.pppl.gov.

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