United States Air Force, Air Force Materiel Command, AAC -- Air Armament Center, AAC/PK, 205 West D Avenue, Suite 433, Eglin AFB, FL, 32542-6862

61 -- MOBILE ELECTRICAL LOAD BANK SOL F0863599R0071 POC Dennis Fields, Contract Specialist, Phone (850)882-4685 ext. 336, Fax (850)882-9381 ext. 374, Email fieldsd@eglin.af.mil -- Jeff Cox, Contracting Officer, Phone (850)882-4685 ext 316, Fax (850)882-9381/8852, Email coxjd@eglin.af.mil WEB: Visit this URL for the latest information about this, http://www.eps.gov/cgi-bin/WebObjects/EPS?ACode=P&;ProjID=F0863599R0071 &LocID=1182. E-MAIL: Dennis Fields, fieldsd@eglin.af.mil. This is a synopsis/solicitation for commercial items IAW FAR 12.6 as supplemented in this notice and constitutes the only solicitation. Proposals are requested. Solicitation F08626-99-R-0071 is a Request for Proposal (RFP) based on provisions and clauses in effect through Federal Acquisition Circular 97-11.This is acquisition is set-aside for small business. The standard industrial classification code is 3612 and the small business size is 750. Contract Line Item Number 0001 Electrical Load Bank (1 Ea). F.O.B. Origin. Delivery NLT 1 Dec 99. Provide an electrical load bank to furnish resistive and reactive loads for testing operation of electrical generators as follows: (i) General Characteristics: Capacity: 2,500 Kilowatts (kW); 1,875 Kilovars (kVAR); capable of providing load for a 4,160 Volt, 3 phase electrical source, 50/60 Hz operation; elements and controls shall operate from a 480 V source; include a step-down transformer to reduce the test item voltage from 4,160 V to 480 V; totally enclosed foroperation in inclement weather conditions; trailer mounted for transportability; and requiring only connections to the line voltage source and ground to operate the unit. All exterior, exposed surfaces shall be painted with polyurethane enamel suitable for outdoor use, spatter finish coat, Desert Tan. (ii) Local Manual Controls: Shall be provided within an operator control room inside of the load bank enclosure. Resistive load segments shall be additive. Resolution shall be 5 kW resistive and 3.75 kVAR reactive. The operator control panel shall include: cooling blower start/stop push buttons, cooling blower phase reversal, cooling blower motor voltage select, main power on/off, master load on/off, and an emergency stop mushroom push button. Control panel indicators shall include Main Power on, Blower On, Air-Fail, Over Temperature, Motor Overload, Door Interlock, Over Voltage, and Under Frequency. Instrumentation shall include an integral digital power-metering unit for display of line bus parameters: voltage, current, frequency, real power (kW), reactive power (kVAR), apparent power (kVA), and power factor. (iii) Remote Controls: Shall be provided identical to the local control panel and hard-wired to minimize potential for electromagnetic interference. Cabling and accessories shall be provided for operation at a minimum distance of 200 feet from the unit. Storage for the remote cabling shall be included. (iv) Resistive Elements: Shall be corrosion resistant and shall NOT require a cool down period after use. (v) Reactive Elements: Shall be non-saturating, iron core construction impregnated with high dielectric varnish. (vi) Blower Motors: Integrally mounted motors shall be operable from both internal power and an external source. Motors shall operate at either 230 Volt or 460 Volt, 3 phase, 50/60 Hz from the internal bus power source and be fuse or relay protected. Blower motor operating voltage shall be switch selectable. External power shall use only a 480 V connection with labeled terminal connections and adiagram with connection instructions for each voltage configuration affixed in the immediate vicinity of the terminals. (vii) Construction: The load bank shall be housed in an ISO container. The container shall be modified to house the load bank and the service/control room with a lockable main door. The load bank roof shall be fitted with hatches permitting access to the components mounted within. Service access shall also be available off the service/control room and the end of the ISO container. Multi-vane louvers shall be mounted on the air intake of the load bank. (a) Cooling System: Cooling air shall be drawn in from the intake of the load bank, forced across the resistor elements and vertically exhausted. (b) Connections: Control power and load power connection terminals shall be located in recessed compartments with access through hinged lockable doors located on the enclosure exterior. The high voltage interface shall be made with 15 kV, 200 A bushing well assembly connecting to standard 15 kV, 200 A load break elbow connectors. A minimum of 3-200 A connection points per phase shall be provided. Parking stands and bushings shall be provided for each cable connection. Each phase connection shall be marked so that it can be seen in low light conditions. (viii) Transformer. The transformer shall be sized to accommodate the full load required by the load bank when all resistive and reactive components are in operation simultaneously. It shall accommodate a 4,160 V, high voltage input and a 480 V secondary output. This transformer shall be 3 phase, 60 Hz, outdoor, dry type unit with a temperature rise capability of 150_ C and insulation class of 220_ C as a minimum. (ix) Trailer: The load bank and transformer shall be integrated on a single trailer suitable for transporting the weight and volume of the entire system. As a minimum the trailer shall be 96 inches wide and 48 feet long, dual axle, drop deck design, equipped with air ride suspension, air brakes with ABS system and auto adjusters, and a fully braced landing gear with two-speed adjustment. Parking brakes shall be installed on both axles. A minimum of 4 retractable ISO twist lock fittings shall be installed to secure the load bank ISO container. The trailer shall be DOT/ICC road legal without obtaining additional permits for routine use. It shall be complete with mating vehicle connectors that meet current DOT standards. (x) Safety: Provide the following safety and protection circuits: (a) Air Fail: An airflow interlock switch shall be provided for each main blower assembly. (b) Over-temperature: Sensors shall be installed in the exhaust air stream in each resistor assembly to alert the operator to an over-temperature condition and automatically de-energizing the load elements (c) Overvoltage: The load shall be protected from an overvoltage condition by dropping out the load contactors. (d) Over/Underfrequency: A relay shall be supplied to ensure that the reactive load elements are protected in an under or over frequency condition. In either event, the load contactors shall be dropped out. (e) Door Interlock: Switches shall be provided on all load element compartment access doors such that if access doors are open, the load bank cannot be energized. If load element compartment access doors are opened during load bank operation, all load elements shall be de-energized. (f) Warning Signs: The exterior of the load bank shall have appropriate warning/caution statements on each door and access panel. When the doors and access panels are opened, appropriate danger signs shall be clearly visible. (g) Branch Circuit Fusing. Each load step contactor shall be provided with fuse protection, properly sized for the current in the circuit, using UL Listed, Class T, 600 V rated fuses. (h) Grounding. Both the load bank and transformer shall be solidly grounded to the trailer. The trailer shall have heavy duty ground lugs installed on each side of the front and rear of the trailer each accepting a minimum of 2 #6 AWG copper conductors. (xi) Controls: The control panel shallcontain: (a) Control Power On/Off Switch: Shall activate or deactivate the load bank control power. (b) Blower Start/Stop Push Button: Shall initiate the blower motors' start and stop circuit. The blower on lamp shall be an acknowledgment that the blower motor logic has initiated blower starting. (c) Air Fail Lamp: Shall indicate a loss of sufficient cooling air from any airflow switch. (d) Overvoltage Lamp: Shall indicate that the load applied has exceeded safe limits. (e) Over/Under-Frequency Lamp: Shall indicate that the frequency applied to the load bank is outside safe limits. (f) Motor Overload Lamp: Shall indicate that an overload condition exists in any of the blower circuits. (g) KW/Resistive Load Step Toggle Switches: A toggle switch shall be provided for each resistive load step. (h) KVAR/Reactive Load Step Toggle Switches: A toggle switch shall be provided for each reactive load step. (i) Emergency Stop Push Button: A clearly marked switch shall be provided that will remove the applied load and de-energize the blower motor circuits. (j) Fan Rotation ABC/CBA Switch: Shall be provided that changes the phase rotation of the blower circuit. A selector switch shall be provided for selection of internal blower voltage power of 240 or 480 V. (xii) Load Resistors: Shall have the following characteristics: (a) Accuracy: Resistive elements power rating accuracy shall be 0-5%. The resistors shall be placed directly in the air stream for cooling purposes, compensating for the change in resistance with temperature to maintain the required accuracy. The resistor element assemblies shall be designed so that a cool down period is NOT required. (b) Ohmic Value. The ohmic value of each phase of the 3-phase circuit for each load step shall not exceed 2% difference from the average ohmic value of the 3 phases of the circuit. The resistors shall be securely supported. (xiii) Reactive Elements: The load reactors shall have: (a) Iron Core Inductors. A coil, insulated from the iron laminations and the frame of the reactor. The coils shall be high potential tested at twice the rated voltage plus 1,000 V to the mounting brackets. The mounting brackets shall be grounded to the frame of the load bank. The iron core inductors shall be coated with an insulating varnish. (b) Reactors: Reactors 37.5 kVAR and larger shall be 3-phase iron core construction with: open core and coil construction, 130_ C rise at rated voltage, auto-reset 180_ C thermal switch installed in each winding, 220_ C, U.L. recognized insulation system, 0.05 power factor, maximum 5% waveform distortion. They shall have hipot testing performed at 2000 V AC. Reactors greater than 37.5 kVAR shall have a comprehensive suppression network. The contractor shall provide all commercial manuals, drawings, schematics, parts lists, etc. for the equipment. The following FAR clauses apply to this solicitation: 52.212-1, Instructions to Offerors -- Commercial; 52.212.-2, Evaluation -- Commercial Items (Evaluation will be based on Technical, Price and past performance); 52.212-3, Offeror Representations and Certifications (Offerors shall submit a completed copy of the Representations and certifications with their offers);- Commercial Items: 52.212-4, Contract Terms and Conditions -- Commercial Items; and 52.212-5, Contract Terms and Conditions Required to Implement Statutes or Executive Orders -Commercial Items. The following FAR clauses are also incorporated by reference; 52.222-26; 52-222-35; 52-222-36; 52.215-20; and 52.249-1. The Offeror shall have an ISO9001 Certified Quality System, provide a commercial warranty, and propose a product demonstration prior to delivery. The Government will award a contract resulting from this solicitation to the responsible Offeror whose offer conforming to the solicitation will be most advantageous to the Government. The following factors shall be used to evaluate offers: a) Technical Capability of the item offered to meet the Government's requirements; b) Past Performance; and c) Price; . Technical Capability and Past Performance are equal and are more important than Price. Written proposals shall be submitted to AAC/WMOK Bldg. 40, 314 West Choctawhatchee Ave Suite 104, Eglin AFB, FL, 32542,. Proposals due NLT 3:00 PM CDT, 08 July 99. Questions may be addressed to the Contracting Officer, Jeff Cox, (850) 882-4685 x316, fax (850) 882-9381. Posted 06/18/99 (D-SN344580). (0169)

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