400 Hz Frequency Converter

Q&A Q1: Does the unit require input/output isolation transformers? A1: The unit does not require input/output isolation transformers Q2: Is the unit indoor or outdoor? A2: The unit will be located indoors Q3: Is the unit installed in a hanger? A4: The unit will not be installed in a hanger. Q5: Is the real requirement to have Output Voltage variable from 0-132 line to neutral & 0-228 Line to Line? A5: The requirement for adjustable output voltage can be reduced for our current testing requirements. The new requirement is as follows: 'The frequency changer shall be capable of variable output voltage from 110 to 130 VAC line to neutral and 195 to 225 VAC line to line. Q6: Is the real requirement to have the Output Frequency variable from 60 Hz to 450 Hz? A6: The requirement for adjustable output frequency can be reduced for our current testing requirements. The new requirement is as follows: 'The frequency changer shall be capable of a minimum variable output frequency of390 to 410 Hz. Q7:Is an output voltage of 120/208+ or -10% adjustable via potentiometer acceptable A7: A potentiometer is acceptable if it is easily accessible without removal or disassembly of any panels Q8: Is an output frequency that is Crystal controlled and that is always 400 cycle plus or - .01 or better and is not variable acceptable? A8: No, the unit must have an adjustment for the frequency output Q9: Are the physical dimensions 28" wide by no more than 30" deep adjustable? This seems to be restrictive. A9: No, the area the frequency converter is located will not allow physical dimensions larger than those in the Purchase Description without facility alterations. Is an output voltage of 120/208+ or -10% adjustable via potentiometer acceptable Provide a 400Hz Frequency Converter to replace the current frequency converter that supports the Air Driven Accessories Overhaul and Test Facility, 1 Each Frequency Converter Must Meet Below Technical Specifications: 400 Hz Frequency Converter Soft Start Circuitry Static type Not a motor generator, rotary, or mechanical type Variable output voltage from 110 to 130 VAC line to neutral and 195 to 225 VAC line to line Minimum 50 amps output current per phase Minimum variable output frequency of 390 to 410 Hz Output 100% isolated from chassis and ground/exception of neutral which may be grounded Capable of plus/minus 10% input voltage range variation and plus/minus 5% input frequency range variation while still maintaining the set output voltage and frequency Capable of providing 30 KVA, 120/208 VAC, 3 Phase, 5-wire WYE, 400 Hz output utilizing 480 VAC, 3 Phase, 60 Hz input Minimum line voltage regulation of plus/minus 0.1% for a plus/minus 10% input voltage change Minimum load regulation output voltage of plus/minus 0.5% for a 0 to 100% change in load Minimum accuracy of plus or minus 0.1% output frequency Rated for 150% overcurrent for a minimum of 10 seconds Maximum of 1.0% output voltage total harmonic distortion for linear loads at 400 Hz Output phase separation of 120 degree plus or minus 1 degree Correcting for a 100% load change in a minimum of 200 milliseconds Digital readouts for the true RMS output voltage, the output frequency, and the true RMS output current Controls to allow for readily and accurately increasing and decreasing the output voltage and output frequency set points Operating in an environment that ranges from 32 to 110 degrees Fahrenheit with 0 to 95% no-condensing humidity Maximum audible noise level of 75 dBa at 3 feet Physical dimensions no wider than 28 inches and no deeper than 36 inches Offeror must provide pamphlet, brochure or other documentation showing Technical Specifications. Required Delivery Date (RDD): 31 March 2015 NOTE: If unable to meet posted RDD - submit proposed delivery schedule. Delivery Information: FOB Destination, Tinker AFB, OK 73145 NOTE: offers with FOB Origin DO NOT meet the terms and conditions of this solicitation Inspection and Acceptance: Inspection and acceptance of the service will be performed at Tinker AFB, Oklahoma, 73145 Warranty Type: Standard commercial warranty Competition Requirement: Full and Open, Small Business Set-aside NAICS Code: 335312 Size Standard: 1000 Employees Payment Information: Payments shall be made in arrears of required items being accepted by the Government and delivered to the specified delivery destination. NOTE: offers requiring advanced or progress payments DO NOT meet the term and conditions of this solicitation. Required Registration by all Contractors: In accordance with FAR 52.212-3, Offeror Representations and Certifications - Commercial Items, it is mandatory that all offerors wishing to be considered for award must be registered with: System for Award Management (SAM) (www.sam.gov) NOTE: Contact the Vendor POC on the website for information and guidance regarding these registrations Applicable Clauses/Provisions (Federal Acquisition Regulation http://farsite.hill.af.mil/farsite.html): FAR 52.212-1, Instructions to Offerors - Commercial Items FAR 52.212-2, Evaluation - Commercial Items FAR 52.212-3, Offeror Representations and Certifications - Commercial Items FAR 52.212-4, Contract Terms and Conditions - Commercial Items FAR 52.212-5 (Dev), Contract Terms and Conditions required to Implement Statutes or Executive Orders Evaluation of Proposals: All offeror's responses will be evaluated in accordance with FAR clause 52.212-2, Evaluation of Commercial Items. Award will be conducted under the provisions of FAR Part 12, Acquisition of Commercial Items. The following factors shall be used to evaluate offers: (1) Technical: quote must be rated as technically acceptable to be eligible for award (2) Price: award will be made to the lowest priced technically acceptable (LPTA) offeror Contract Line Items (CLINs): CLIN # Requirement Quantity Unit of Issue 0001 400 Hz Frequency Converter with specifications in accordance with the Purchase/Detailed Description 1 EA Detailed Description: The frequency converter shall be capable of providing 30 KVA, 120/208 VAC, 3 Phase, 5-wire WYE, 400 Hz output utilizing 480 VAC, 3 Phase, 60 Hz input. The unit shall be a static type. The unit shall not be a motor generator, rotary, or mechanical type. The frequency converter shall be capable of variable output voltage from 110 to 130 VAC line to neutral and 195 to 225 VAC line to line. The unit shall be capable of 50 amps output current per phase. The frequency changer shall be capable of a minimum variable output frequency of 390 to 410 Hz. The output shall be 100% isolated from chassis and ground with the exception of neutral which may be grounded. The frequency converter shall be capable of plus or minus 10% input voltage range variation and plus or minus 5% input frequency range variation while still maintaining the set output voltage and frequency. The unit shall be equipped with soft start circuitry. The unit shall be capable of a minimum line voltage regulation of plus or minus 0.1% for a plus or minus 10% input voltage change and a minimum load regulation output voltage of plus or minus 0.5% for a 0 to 100% change in load. The frequency converter shall be capable of a minimum accuracy of plus or minus 0.1% output frequency. The unit shall be rated for 150% overcurrent for a minimum of 10 seconds. The unit shall have a maximum of 1.0% output voltage total harmonic distortion for linear loads at 400 Hz. The unit shall be capable of an output phase separation of 120 degree plus or minus 1 degree. The unit shall be capable of correcting for a 100% load change in a minimum of 200 milliseconds. The frequency converter shall be equipped will digital readouts for the true RMS output voltage, the output frequency, and the true RMS output current. The unit shall be equipped with controls to allow for readily and accurately increasing and decreasing the output voltage and output frequency set points. The frequency converter shall be capable of operating in an environment that ranges from 32 to 110 degrees Fahrenheit with 0 to 95% no-condensing humidity. The unit shall be no wider than 28 inches and no deeper than 36 inches. The unit shall have a maximum audible noise level of 75 dBa at 3 feet. In order to be technically acceptable, the 400 Hz Frequency Converter must comply with the above technical specifications and the purchase description. Proposal Submission Information (emailed proposals are preferred): Quotations are due at Tinker AFB by 3:00 PM, CST, 21-Nov-2014. Kelley Keppinger Contract Specialist Phone: 405-739-9119 E-mail: kelley.keppinger@us.af.mil Requirement Overview: