CECOM Acquisiton Center, Washington Operations Office, AMSEL-AC-WB-B,Hoffman 1, 2461 Eisenhower Avenue, Alexandria, VA 22331-0700

A -- 5-60KW FPR MILITARY GENERATOR SET APPLICATIONS DUE 021999 POC Edmund A. Nawrocki, Technical POC, (703) 704-3372, or Peggy W. Butler, Contracting Officer, (703) 325-4994 E-MAIL: click here to contact the contracting officer or the, pbutle@hoffman-issaa2.army.mil or the technical poc @ enawrocki@belvoir.army.mil. Alternators (5 -- 60 kW) for Military Generator Set Applications: Contract Officer, Peggy Butler, Technical POC is Mr. Edmund A Nawrocki 703/704-3372. Alternators for the users of military generator sets for the 21st Century Battlefield. Request for Information (RFI), the US Army Communication and Electronics Command, R&D Center, Command and Control Directorate, Army Power Division, Power Generation Branch, Advanced Technology Power Source team is soliciting information from manufacturers of alternators for use in power systems to develop for application the 21st Century Battlefield. The Army is beginning a new program that will result in the development of a new family of generator sets in the 5 to 60 kW range. Information to be provided should include, but not be limited to conventional or high frequency alternators with power electronic topologies. The government is interested in information on commercial off the shelf alternators and future development of alternators that will be in production within the next two (2) to three (3) years. The alternator must be capable of providing rated, continuous power at 0.8 power factor within a temperature range from -45oC (-50oF) to +52oC (+125oF) at any possible relative humidity within this range. Interested offerors are requested to submit available information, including, but not limited to, topology to include mechanical construction, output rating and performance characteristics, waveshape, harmonics, insulation, indirect and/or direct cooling, parallel operation, losses and efficiencies, operational and test results, company engineering, development and manufacturing capability, photographs, availability, and price quotes. Specific area s of interests are reflected by the following questions. (1.) What are the output ratings and performance characteristics for alternators (5 to 60 kW) for military generator applications; (2.) What are the maximum deviation of the voltage waveform from a pure sine wave and the maximum individual harmonics?; (3.) Whatkind of harmonics does the alternator experience when operating under load conditions? (4.) What is the estimated life (storage/operation) of the alternator?; (5.) How is it cooled? Please provide information on the following: Cooling media, ventilating paths, fans and enclosures, gas quantities, liquid seals, scavenging; (6.) What were the basic types of mechanical constructions used in producing the alternator? Information should include the following rotor and stator construction, critical speeds, bearings, bearing arrangements, high pressure systems, oil specifications, and temperature limitations; (7.) What is the voltage regulation for the alternator? What is the effect of sudden load application for the alternator?; (8.) Does each alternator have the capability of parallel operation? If so, what are the conditions?; (9.) What are the losses and efficiencies for each generator? Such as conventional efficiencies, losses (windage and friction loss, core losses, copper losses, field copper loss, armature copper loss, stray loss or load loss and typical losses.) Please provide data in table and diagram format; (10.) Were the alternators tested to determine if they have met their required performance? What type of tests were performed? Please provide saturation curves for each alternator, if applicable. Were the alternators subjected to heat runs and dielectric tests? The government does not intend to award a contract on the basis of this RFI or otherwise pay for information solicited. No funds have been authorized or appropriated for this effort. The information provided in response to the RFI may be used by the Government in developing its acquisition plans. The information presented in the information package provided by contractors is for information purposes only and does not mandate or impose requirements. It is highly desirable that data be received with unlimited rights to the Government. However, we recognize that proprietary data may be included with the information provided. If so, clearly mark such proprietary information and clearly separate it from the unrestricted information as an addendum. Request that all information be provided within 45 days of the date of this announcement. Information may be submitted in either via mail or electronically, or both. Mailed information shall be sent to HQ, USA CECOM RDE CENTER, AMSEL-RD-C2-AP-PG ATTN: Mr. Edmund A Nawrocki, 10108 Gridley Road Suite 1, Fort Belvoir, VA 22060-5817. Electronic information shall be sent to enawrocki@belvoir.army.mil. Posted 12/23/98 (W-SN283307). (0357)

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