SOURCES SOUGHT
61 -- 9 Transformer Stations
- Notice Date
- 5/26/2010
- Notice Type
- Sources Sought
- NAICS
- 335311
— Power, Distribution, and Specialty Transformer Manufacturing
- Contracting Office
- Department of the Air Force, Air Force Materiel Command, 88 CONS/PK, 1940 ALLBROOK DRIVE, WRIGHT-PATTERSON AFB, Ohio, 45433-5309, United States
- ZIP Code
- 45433-5309
- Solicitation Number
- FA8601-10-R-0034S
- Archive Date
- 6/22/2010
- Point of Contact
- Jessica L. Morgan, Phone: 937-522-4594
- E-Mail Address
-
jessica.morgan@wpafb.af.mil
(jessica.morgan@wpafb.af.mil)
- Small Business Set-Aside
- N/A
- Description
- SOURCES SOUGHT SYNOPSIS (Not a Notice of Solicitation) The United States Air Force, 88th Air Base Wing, Wright-Patterson AFB, Ohio is seeking potential sources to provide 9 transformer units to replace the 9 existing units in use now. Firms responding should specify their products which meet the technical specifications provided below and provide detailed product information to show clear technical compliance. If it is a requirement to submit sketches or provide a warranty, please express this would cause no problems. If you believe you can meet this requirement but take exception to any of the items listed below, please state these in your capabilities package. Additionally, sales history including recent commercial companies sold to should be included to determine commerciality. The requirement specifications are as follows (please note this is a DRAFT specification only): The WPAFB test facility building 65 is planning on replacing its test facility transformers. These transformers are arranged as shown on the enclosed drawing. WPAFB wishes to replace the existing transformers with new state of the art transformers. The existing transformers are over 50 years old and due to age are beginning to become very difficult to maintain. WPAFB would like to replace the existing transformers with similar transformers with regard to size and physical "footprint" in order to reduce the impact of the transformer replacement. However, WPAFB would like a transformer set that will provide a similar length of service as the current transformers. With these guiding principles in mind, WPAFB is requesting a proposal conforming to the following standards: - Provide single-ended indoor unit substation with 6.9 kV primary breaker switch, transformers, and low-voltage switchgear as shown on drawings. - Transformers required shall be provided with cooling fans. All monitors and controls shall be provided to accommodate transformer cooling. - New unit substations shall be capable of communicating with the Power Management System PLC as described in section 4.0 via Modbus or Modbus TCP. - Unit substations shall meet latest applicable standards of NEMA, ANSI, UL, IEEE, OSHA, and NEC. - Submittals Shop Drawings and Product Data: 1. Include complete data on each item. Coordinate the items, as they relate to the work prior to submittal. 2. Submit certified prints showing assembly of units, outline dimensions and weights, shipping lengths, location of conduit, wiring diagrams, installation drawings, and a complete bill of material for each substation, including interface drawings where connections are made to existing equipment. 3. Submit details of vibration isolation pads, number of pads, load, size, load deflection characteristics, isolation efficiency, and installation details. 4. Submit noise levels measured in the shop in accordance with referenced standards to show compliance with the specified criteria. 5. Submit prints of primary section, transformer section and secondary switchgear sections, complete front view and one line for each substation as one coordinated submittal to allow proper checking of each completely assembled unit substation. Partial submittals of unit substations are not acceptable. 6. Shop drawings shall clearly indicate the Owner's substation identification on the lower right hand section of each drawing. - Test Reports Submit copies of certified test data on all factory tests performed on supplied equipment. - Maintenance Data and Operating Instructions Furnish five sets of general instructions for operation and main¬tenance of equipment, and parts list with list of recommended spare parts. Include parts description, catalog number, and name and telephone number of nearest available distributor. - Manufacturer's Warranty Manufacturer shall assume full responsibility for correctness and adequacy in every respect of all internal wiring and connections, and for electrical and mechanical coordination of all devices and equipment. Submit warranting that the equipment and its auxiliaries shall meet the operating conditions, capacity, and performance specified and shall remain in serviceable working condition, for manufacturer's standard warranty, starting from date of final completion and acceptance of the system by the Owner's Representative. Final completion is defined as installed and accepted at WPAFB, building 65. Owner's standard warranty shall be no less than one year after date of final installation. Submit warranting that if the equipment or its auxiliaries fail, or fail to meet any of the specified requirements, the equipment or its affected auxiliaries shall promptly be reworked or replaced as necessary to comply with the contract requirements, all at no cost to the Owner, and the guarantee shall be extended for one year from date of acceptance of the reworked or replaced equipment or auxiliary. - Training The Contractor shall provide a training session for up to five (5) owner's representatives for 5 normal workdays at a job site location determined by the owner. The training session shall be conducted by a contractor representative. Training program shall include instructions on the assembly, circuit breaker, protective devices, and other major components. - Operation and Maintenance Manuals Equipment operation and maintenance manuals shall be provided with each assembly shipped, and shall include instruction leaflets and instruction bulletins for the complete assembly and each major component. - Disassembly and Shipment All equipment shall be disassembled in shipping sections so that all shipping sections can be lifted into a 10-foot by 12-foot square opening. Each substation shall consist of an incoming line primary switch section, transformer section, and secondary distribution section, each separated from the other by steel barriers but joined to form a single metal-enclosed structure. Freestanding enclosures and internal barriers shall be fabricated from code-gage steel, and the incoming transformer and outgoing sections shall be finished with the same shade of baked enamel or air-dried lacquer (manufacturer's standard color) applied over a rust-inhibiting phosphate primer. The base of all sections shall be made of structural steel members, welded to form a rigid frame which will not twist during movement even if the section is placed on an uneven floor. This shall enable sliding or movement on pipe rollers in all directions, and have provisions for jacking and lifting lugs for top rigging. Enclosure Finishes and breakers shall be ANSI 60 gray. - Individual Unit Substation Incoming Line Section Incoming Line Section: Consisting of a metal enclosed, safety barriered, compartment on the primary terminal side of the transformer containing a manually operated, air immersed, load break, disconnect breaker, and three lightning arresters. Safety Barrier: Provide a safety barrier complete with warning message, which prevents contact with the energized bus unless deliberately removed by any person working within the incoming line section. Front and rear doors on switch enclosure shall be hinged and lockable. Breaker style incoming line section with Manual make / break actuator. Main breaker shall have auxiliary make/break contacts with interface to the Power Management System PLC. The Power Management PLC shall have the ability to remotely close and open the Main Incoming Line circuit breaker. All communication and control shall be over Modbus or Modbus TCP to the Power Management System PLC. The front breaker shall have front panel mounted indicating LED lights to indicate the state and position of the Main incoming line breaker. Phase monitor indicators shall be installed for the incoming lines to the transformer. - Cabling Incoming and Outgoing Line: Top feed. Cable size shall match existing. Loop feed for incoming line. Provide four NEMA 2-hole compression type terminal lugs on each line terminal of the switch. Provide adequate space for support and termination of four sets of 3/C -6.9 kV lAC with stress cones; Match existing cabling sizes. Primary Cable Entrance: From above as existing. Provide adequate space for the makeup and bracing of stress cones, minimum 27 inches. Provide hinged and bolted front and rear access doors. Provide removable and reusable insulated "boots" for Contractor field installation. Transformer connection from load side terminals of main breaker shall be by insulated cables to limit transmission of noise, sized and braced to provide adequate, safe operation under fault conditions. Cable shall be sized by manufacturer for maximum transformer capacity. Provide cabling such that industry bending radius requirements are satisfied and individual cables do not cross or touch each other. Provide supports and/or insulators as required. Provide all cable lugs and other accessories for connection of these cables. - Grounding Provide a 1/4-inch (minimum) by 2-inch copper ground bus in switch with cable clamps for #4/0 AWG through 500 MCM cable, one on each end of ground bus. Enclosure shall be factory connected to the ground bus. Provide ball stud connection to ground bar, one on each end of ground bus. Ball stud shall be AB Chance Catalog No. C600-21 02. Transformer Section Enclosure: Fabricated steel framework with sheet steel bolted removable panels connected to switchgear on one end and the incoming line section on the other end. Provide base construction suitable for using rollers or skidding in any direction. Provide suitable insulating barrier at the secondary bus entrance to prevent the passage of ionized gases or rodents between the secondary switchgear enclosure and the transformer enclosure. - Build Indoor, ventilated, VPI, dry type. Provide vibration isolation between the core and coil support system and the base of the transformer case to reduce the transmission of vibration to the base and the external enclosure. Vibration isolators shall be a minimum 1-inch thick, 40 Durometer elastomer pads, complete with anchor bolts and vibration isolation washers, to provide a vibration isolation efficiency of a minimum of 85 percent. Connect transformer bus to the switchgear bus with flexible connections to minimize vibration transmission to the switchgear. Provide vibration dampening on 600 volt bus bar. Primary and secondary windings shall be copper, rated for 80 degrees C.. Secondary terminals shall be silver-plated, complete with drilling and bolts for connection to secondary Switchgear and shall be rated at continuous ampere rating of secondary switchgear main bus. - Electrical Rating Continuous Rating 2500 KVA at 80 degrees C AA Ambient Rise shall not exceed 115 degrees C above ambient air temperature of 30 degrees C average Insulation Class H, 220 degrees C, 15 kV BIL (H.V.) 95 kV BIL (L.V.) 10 kV Frequency 60 Hz Phase 3 phase High Voltage 6900 Volts delta connected Low Voltage 600 Volts delta connected ungrounded Impedance NEMA standard (5.75 percent of base plus or minus 6% of base) Sound Level In accordance with ANSI/IEEE C57.12.57 and NEMA Standards publication TR-1 Transformers shall be dual wound to provide 600 V. or 480 V. voltage on secondary side of the transformer. Taps shall be brought out to a suitable tap-changing terminal board accessible by removing bolted on covers for tap changing with transformer de-energized. Bus work shall be fully supported. Taps shall be provided for 600 V and 480 V secondary. A suitable diagrammatic nameplate shall be prominently displayed showing all ratings, tap-changing information, serial number, and operating characteristics. - Accessories Forced-air cooling fans controlled by automatic three-stage temperature control relay, sensing hot spot device, starters, overcurrent protection, and "manual-auto" selector switch with no "off" position. Future fans to be heavy-duty type, rated for 120 volt operation. Provide digital temperature monitor and make provisions for future fan control. Monitor shall retain maximum temperature of highest phase, and show current temperature of each phase. Monitor shall be resettable. Control shall have two sets of contacts that close on adjustable temperature settings. One set shall be wired to interface with future transformer cooling fans. Temperature monitor shall be internally wired to an installed network interface device, which will communicate with the Power Management System PLC via Modbus or Modbus TCP. Provide an addressable relay system to monitor transformer fan status and transformer over temperature. This relay shall communicate with the installed Electrical Energy Management System PLC, and be internally wired to an installed network interface device, which will communicate with the Electrical Energy Management System PLC via Modbus or Modbus TCP. Provide a 1/4-inch by 2-inch copper ground bus the full length of transformer enclosure. Provide cable clamps for #4/0 AWG through 500 MCM cable, suitable for connection by cable to the incoming line switch and low voltage section ground busses. Provide ball stud connection to ground bar, one on each end of ground bus. Ball stud shall be AB Chance Catalog No. C600-21 02. - Tests Manufacturer's standard tests shall be performed for each transformer in accordance with the latest revision of the American Standard Test Code for transformers. Transformer core and coils shall be designed and built to meet requirements of "Distribution and Power Transformer Short Circuit Test Code," ANSI C57.12.91. Each transformer shall receive all standard commercial tests in accordance with ANSI C57.12.91. The purchaser shall be informed immediately of any unusual damage occurring during construction of the transformer and of all tests which do not meet specified or standard values. The purchaser shall be permitted, at his option, to personally inspect any damage and/or test failures. The following manufacturer-certified data shall be submitted for the transformer quoted. All test data shall be in accordance with appropriate NEMA and ANSI test procedure. 1. Temperature rise after continuous full load by thermo¬meter and by winding resistance. 2. Percent impedance and impulse level (impedance shall not exceed 6 percent). 3. Applied and induced voltage for dielectric tests. 4. Percent regulation at rated load for unity power factor, 0.8 power factor, 0.6 power factor. 5. Resistance measurement, transformer turns ratio, polarity and phase relation, no load loss, excitation current, impedance, load loss, induced potential, and applied potential tests in accordance with latest ANSI C57.12.91. 6. Noise level tests in accordance with NEMA Standard TR-27. Certified test by manufacturer is acceptable. - Low Voltage Switchgear Sections - General Description -Cubicles Cubicle sections of the secondary switchgear shall be of dead¬front, freestanding construction, completely factory built, wired, and tested. Line-up shall contain draw-out type air circuit breakers designed for 600 volts, 3-phase, 60 Hertz operation. The cubicles shall be fabricated of manufacturer's standard ¬gage steel plate (minimum 13 gage) with smooth finished surfaces, welded together and reinforced where necessary with structural members. Each structure shall be rigid and self¬ supporting. The structure shall be designed so that future extensions can be added readily. Where end pieces are required, they shall have formed edges, bolted to the end cubicle. Vertical sections shall be designed for bolting together. The cubicles shall be divided into individual compart¬ments, extending the full height and depth of the units for effectively isolating equipment and connections. Compart¬ments shall have necessary louvers for proper ventilation. Each individual vertical frame shall be divided into front metering and breaker sections and rear bus section isolated by steel panels. In addition, each metering compartment and circuit breaker compartment shall be isolated from adjacent compartments by steel panels. Individual compartments shall be provided with primary and secondary contacts, rails, stationary disconnection mechanism parts, and cell interlock which will trip the circuit breaker automatically if an attempt is made to move the removable unit into or out of the "connected position" when the circuit breaker is closed. The front of the switchboard shall have individual hinged doors on each compartment. Doors shall be designed so they can be opened without tripping enclosed breaker. The hinges shall be concealed entirely, adjustable, and have removable pins. Where bolts are required on hinged doors, they shall be captive type for use without tools. Panels at the rear of the switchboard shall be full-length doors, hinged, and provided with captive bolts for fastening in place or three-point handle mechanism. All hinged doors shall have rolled or formed edges. Provide all bus bar ties inside the switchgear from the line side of the main breaker to the transformer. Bus connections from the main bus to the feeder breakers and future positions shall be fully rated for the frame size of the feeder breakers. - Switchgear Busses and Connections Busses shall be copper and mounted on rugged insulating supports. Busses and joints shall be sized for temperature limits in accordance with ANSI C37.20, and insulation shall withstand specified hottest spot temperature. No reductions in main bus ampacity will be allowed. Riser bus shall extend full height of cubicle with no exceptions. Line-side connections to circuit breakers and all load-side connections to cables shall be copper-to-copper with silver or tin plating. Copper bus connections shall be silver or tin plated, with bolted joints. Bus shall have a continuous rating of 4000A and short circuit rating of 65,000A. Insulate main bus and all connections to the same or provide grounded steel barriers. Load-side of all feeder breaker compartments shall be bussed to the cable compartment and terminated, complete with NEMA two-hole compression type lugs for three 500 MCM cables per phase for 800 amp frame feeder breakers and five 500 MCM cables per phase for 1600 amp frame feeder breakers. Bus extensions shall be insulated, tin or Silver-plate contact surfaces of all bus and connections. Also provide cable clamps for #4/0 AWG through 500 MCM cable, one on each end of ground bus for connection to the transformer ground pad or connection to system ground. Ground bus shall have momentary rating at least equal to the highest momentary rating of any circuit breaker. Provide bus extensions (lugs) at the secondary bus for cable connections in case of emergency. Extensions (lugs) shall be suitable for 500 kcmil cable and 12 connections per phase. - Cable Compartment The rear cable compartment shall have an open bottom and provisions for conduit and cable entrance from top or bottom. The rear cable compartment shall be sized to accommodate a total of 15 -4/C 600 kcmil, 600 volt, lAC exiting out the top or bottom. The rear cable compartment shall contain an enclosed wire trough for all instrument and control wiring. Cable compart¬ment shall have suitable cable supports not less than 24 inches on center. The rear cable compartment door shall be one piece and hinged. Latching of door shall be by a three-point handle mechanism or captive bolts. Rear cable compartment shall be separated from the main switchgear bus by full-height metal or insulated barriers. - Breakers - General The circuit breakers shall be horizontal drawout type, capable of being withdrawn on rails. The breakers shall be operated by a motor-charged stored energy spring mechanism, charged normally by a universal electric motor and in an emergency by a manual handle. The primary disconnecting contacts shall be silver-plated copper. Each circuit breaker shall contain three vacuum interrupters separately mounted in a self-contained, self-aligning pole unit, which can be removed easily. The vacuum interrupter pole unit shall be mounted on glass polyester supports for 6.9 kV class. A contact wear gap indicator for each vacuum interrupter, which requires no tools to indicate available contact life, shall be easily visible when the breaker is removed from its compartment. The current transfer from the vacuum interrupter moving stem to the breaker main conductor shall be a non-sliding design. The breaker front panel shall be removable when the breaker is withdrawn for ease of inspection and maintenance. The secondary contacts shall be silver-plated and shall automatically engage in the breaker operating position, which can be manually engaged in the breaker test position. Interlocks shall be provided to prevent closing of a breaker between operating and test positions, to trip breakers upon insertion or removal from housing and to discharge stored energy mechanisms upon insertion or removal from the housing. The breaker shall be secured positively in the housing between and including the operating and test positions. The breakers shall be electrically operated by the following control voltages: 120 volt AC close and AC capacitor trip. -- OR -- 120 volt AC close and 125 volt DC trip. Each breaker shall be complete with control switch and red and green indicating lights to indicate breaker contact position. AC control voltage shall be derived from an existing circuit breaker panel in the owner's substation room. 125- volt DC control voltage currently exists at the site installation and can be re-used by the supplier. - PROTECTIVE RELAYS Basler Electric BE1-50/51B Solid State Overcurrent Relays (Device 50/51 & 51G/50G) single phase units. - Low-Voltage Breakers Air circuit breakers shall be low-voltage power circuit breaker type, 600 volt class, 3 pole, single throw, draw-out mounted, electrically and mechanically trip-free with stored energy closing mechanisms, three-position closed-door draw-out racking mechanism, and a solid-state tripping device. It shall be possible to close each breaker compartment door with the breaker in "connected," 'Test," and "disconnected" positions. A positive mechanical interlock shall prevent the breaker from being racked in or out while in the closed position by either tripping it or by blocking its closing if already tripped. A manual latch shall provide positive positioning in the "disconnected" position. Provision for padlocking in all positions shall be made. All breakers shall be capable of being manually operated by means of a front-mounted operating handle which charges the closing spring. The speed of the handle shall not determine the closing speed of the breaker. A manual trip button shall be used for the tripping impulse to open the breaker by a separate opening spring. Feeder Breakers: Air circuit breaker, electrically operated draw¬out type, three pole, single throw, 600 volt, 60 Hertz, 65,000 RMS symmetrical ampere interrupting rating at 600 volts. Frame rating, trip rating, and sensor rating as shown on drawings. Cubicles indicated as a "space" shall be fully bussed, for line and load side, complete with hinged door, 1600 ampere frame rating, complete with all features identical to the feeder breakers less the breaker. Include provisions for addition of neutral CT. Cubicles indicated as "blank" shall be completely unprepared, except rear bus shall extend the full height. Fused circuit breakers are not acceptable. Circuit breakers of same frame size shall be interchangeable between compartments. Breaker control power and metering device power shall be provided by a separate 120 VAC source. In the event of foreign wiring, provide a yellow engraved plate with 5/8 inch black letters stating "WARNING EXTERNAL POWER SOURCE" and place on cubicle doors where external power source disconnects or fuses. - Overcurrent Trip Devices Equip feeder breakers with a stored energy type mechanism for quick-make closing and with a field adjustable solid state selective trip device, providing long time overcurrent tripping, short time overcurrent tripping, instantaneous short circuit tripping, and ground fault protection with I squared t function, complete with arc quenchers, interpole barriers, red "Closed," green "Open/Enable," and amber "Tripped" LEDs, and push¬buttons which require a removable guard before the button may be depressed. Trip unit shall be capable of long-time pickup settings from 50 percent to 100 percent of the breaker frame size with current sensors rated the same as the breaker frame size. Removal of LEDs shall not disable shunt trip. Equip main breaker with a field adjustable solid state selective trip device providing long-time overcurrent tripping, short-time overcurrent tripping, and ground fault protection with I squared t function, complete with arc quenchers, interpole barriers, red "Closed," green "Open/Enable" and amber "Tripped" indicating lights and push buttons which require a removable guard before the button may be depressed. Lights shall be LED type. Close pushbutton shall be red, and open pushbutton shall be green. Neutral bus current sensors shall be provided and factory installed for each main breaker where a neutral bus is provided. Sensors shall be installed on load side of the breakers and must remain with the breaker when withdrawn in the "test" or "disconnect" position. Solid-state circuitry shall be designed such that it is not affected by external magnetic fields and in-line transients and conversely shall not generate interference to external electronic equipment. Solid•state trip units shall respond to true RMS sensing and provide: 1. Level of trip current for each phase and ground 2. Electronic power metering. 3. Indication of ground fault, overcurrent trip, and instan¬taneous trip and shall retain values at time of trip 4. Communications for the monitored values (1 through 3 above), protective settings, remote breaker control, and service and trip messages shall be provided via a Modbus or Modbus TCP network with a unique address and be controllable through the Power Management System PLC. 5. Ground fault protection that shall be adjustable for both pickup value and time delay Solid-state trip units shall be as described in the supporting documentation. - Phase - Sequence Voltage Relay Provide for each substation a 3-phase power monitoring device to trip the main breaker in the event that a power fault condition is detected, except device shall not trip the main breaker under complete loss of voltage conditions. Monitor shall be capable of detecting a phase loss condition when regenerative voltage is present. Power fault conditions shall include: Phase Loss. Output contacts shall be 600 VAC, DPDT. Provide the device with LED failure indication, manual reset, and the following adjustments: 1. Trip Delay 1 - 5 seconds 2. Failure Level: 85 - 125 VAC 3. Restart Delay: 0.2 - 10 minutes. - Instrumentation on Secondary Main Provide for each main breaker metering section a solid-state microprocessor-based monitoring and protective device suitable for providing complete metering and system voltage protection. This device shall be internally wired to an installed network interface device, which will communicate with the Power Monitoring System PLC via Modbus or Modbus TCP. Meter shall be capable of both local display and remote communication. Meter shall capture and store for later retrieval waveforms of A, B, and C phase voltages and currents in event any breaker (main or feeders) trips unexpectedly. Meter types shall be as described in supporting documents. - Potential Transformer: Two indoor type, primary voltage 600 volts, ratio 4:1, impulse level-full wave 10 kV, stainless steel base with primary and secondary covers. Fuses shall be located as close to bus bars as possible and be accessible. Core and coils shall be embedded in a body of molded butyl rubber or thermoplastic material with terminals plainly marked to indicate polarity. Potential transformers shall meet ANSI Class 0.3W, X, Y or 1.2Z standards. - Current Transformer: Indoor type, core and coils molded in butyl rubber or thermoplastic material, polarity plainly marked at terminals, secondary shorting strap, full wave impulse 10 kV, window size as required to enclose bus, insulation class 600 volt.. Current transformers shall meet ANSI Class 3-B2.0 standard for metering accuracy. - Two sets of current transformers per phase shall be required. One set shall be used for metering, and one set shall be used for relays. - Wiring: Control and meter wiring shall be isolated from the bus compartments, but shall be accessible at all times. Wire shall be minimum size #14 AWG, stranded copper, code Type SIS. Wires shall have an identifying number which corresponds to the drawing wire numbers, consisting of adhesive-backed wire marked strip attached to the wire at each terminal point. Wires shall be neatly laced and securely fastened to the switchgear frame. Wiring across the hinge of a swinging door shall be provided with clamp, plastic sleeve bundle tie, and extra flexible stranded conductors. Holes through steel panels for control or meter wiring shall be grommeted. Wiring shall be insulated for 600 volts with 1500 volt test. Shipping splits shall have numbered terminal strips on each side, with numbered jumper wires for field connection; or one numbered terminal strip and coiled, numbered wires for field connections. All shipping split terminal strips shall be indicated on drawings. Terminal blocks shall be readily accessible from the rear cabling compartment or from the front instrument cubicles or trays. Provide touch-proof covers on terminal strips so there will be no exposed 600 volt wiring on terminal strips in control cabinet. Provide lockable control power disconnect. Make connections between hinged and stationary panels with terminal blocks and extra flexible wire having the same insulation as the panel wiring and secure wire between terminal blocks with wire cleats to prevent movement at the terminal blocks. This wiring is not to interfere with breaker racking or removal. Provide vertical wireways where required. Provide molded type terminal blocks with washer head binding screws complete with white marking strip. Provide terminal points and wiring within the low voltage switchgear section for communication, control and monitoring system. All control and communication cabling shall be provided at the factory by the unit manufacturer and terminated at a single point for connection to the remote monitoring system. All necessary ancillary, peripheral devices, multi¬plexers, interface boards, programmable logic controllers and the like which are required to integrate communications capabilities with the main Electrical System Monitoring function shall also be provided. - Fuses -Low Voltage Fuses for meter circuits shall be mounted so as to be readily accessible and shall be located in the front compartment behind the meters. All control fuses shall be Class J or K5 current limiting type. Provide engraved lamacoid nameplates indicating type and size of fuse adjacent to each fuse holder. Provide one set of spare fuses for each size per substation. Fuses shall be dual element type having a minimum interrupting capacity of 100,000 amperes at rated voltage. All fuses and terminal strips shall be touch-proof. - Nameplates Equipment, major components, and circuit breakers shall be identified by engraved laminated nameplates. "DANGER HIGH VOLTAGE" signs shall be installed on front and rear of all primary switches. - Accessories Breaker Lifting Device: Geared, hand operated, traveling six ways to service all breakers in low voltage section. Device shall be mounted on top of switchgear. Provide one for each substation. Crank for manual operation of the breaker draw-out mechanism. Crank shall be speed-driver type with non removable socket. Provide one crank per unit substation. Provide lifting yoke for each type breaker element (one per unit substation). Provide storage hangers for accessories listed on end of 15 kV switch, or other suitable location. Provide 50 percent spare fuses per unit substation. - Testing Perform factory tests as necessary to demonstrate conformance with the specified requirements. Notify Owner's Representative 2 weeks in advance of testing to be performed so that the Owner's Representative can have the option to witness testing. As a minimum, perform the following tests: 1. On switchgear assembly: A. Power frequency dielectric tests B. Mechanical operation test C. Grounding instrument transformer case tests D. Electrical operation and control wiring tests E. Breakers and devices trip tests F. Control wiring insulation test. G. Polarity Verification H. Sequence tests - Execution Complete installation shall be in accordance with manufacturer's drawings and installation instructions. Switchgear: Receive, unload, store if necessary (for up to one year after manufacturing completion), install, and connect as shown and as specified. Contractor shall supply and locate leveling channels and openings in the concrete foundation in accordance with manufacturer's drawings. Dimensions shown on the contract drawings are for reference only and shall be verified with manufacturer's drawings. Breaker settings, calibration, etc., shall be the responsibility of this Contractor. However, the work for these items shall be performed by a testing agency qualified for this kind of work. - Installation Electrical Equipment and Materials: Unless indicated or specified otherwise, install materials and equipment in accordance with the standards, codes, and regulations listed in the specifications. Install all equipment in strict conformance with manufacturer's instructions and recommendations. Switchgear: Install and connect as shown and specified. Align, level, and bolt switchgear to floor to allow easy withdrawal or insertion of removable elements and to permit proper operation of all component devices. Store switchgear assembly in a weather tight room and provide heating if recommended by the equipment supplier - Power Management PLC This section details the Power Management PLC system that shall be provided with the transformer change out system. The purpose of the Power Management PLC is to provide a centralized data collection and control point for remote control of the Lab Test transformers. The successful contractor will provide a control panel that will give an operator remote control of the transformer primary and secondary breaker and will provide a complete user interface for displaying all current transformer data in a central location via a Human Machine Interface touch screen panel. The Power Management PLC will consist of a NEMA 12 rated panel with one Modicon Quantum processor, power supply, one modbus adapter card and two additional rack mounted Ethernet adaptor cards. The HMI will consist of a Maple 14" touch screen display with Ethernet interface to the Modicon Quantum PLC. The new transformers shall be networked together utilizing either Modbus or Modbus TCP data network protocol. This network will be run back to the Power Management PLC and will be connected to the Modicon Quantum PLC. - The PLC shall be programmed to control the state of the transformer as follows: Local or Remote breaker control selection: User shall have the option to select if any given breaker can be "tipped" or "engaged" from a local or remote position in relationship to the breaker. In the "Remote" setting, the breaker shall be able to be opened or closed from the location of the Power Management PLC (which is remote from the transformer location). In local setting, the HMI has no control of the breakers for a given transformer and the breakers must be opened locally at the transformer location. The HMI will clearly indicate the status of any given transformer whether in the local or remote state. The PLC shall be able to control the state of each individual breaker on a given transformer, this includes the primary side breaker and all secondary side breakers. The PLC shall be able to open or close each breaker utilizing the data network described above. If a given Transformer is in remote mode all breakers shall be able to be opened or closed from a remote location as described above. All control will be via the touch screen Maple HMI. - The PLC shall be programmed to display the status of the following for each transformer on the HMI touch screen: The "mode" of each transformer local / remote. The status of the communication network. All data from the transformers electronic sensors as outlined above. This includes but is not limited to: Temperature monitoring for each phase Status of the transformer cooling fans Transformer over temperature Level of trip current for each phase and ground Power metering Ground fault indication Overcurrent trip indication Instantaneous trip indication Ground fault protection adjustment for pickup and time delay Other data useful for a remote monitoring station for the transformers The contractor shall be responsible for the programming set up and onsite debug of the Power management PLC. All software shall be written in Modicon Unity software and will be completely documented. The final "As Built" software will be submitted with the final system documentation for WPAFB records. END OF DRAFT SPECIFICATION The Air Force anticipates eventually conducting a competitive acquisition for this award. All interested firms shall submit information demonstrating their capabilities to quickly produce the system within a short/urgent time-frame. Firms responding should indicate whether they are, or are not, a small business, a socially and economically disadvantaged business, or a woman owned business. The general definition of a small business is one that is independently owned and operated, is not dominant in the field of operation in which it is proposing on Air Force contracts and with its affiliates; and the number of employees does not exceed 750. NAICS Code to be used for this acquisition is 335311. The Air Force reserves the right to consider a small business set-aside based upon responses hereto for any subsequent acquisition. Respondents are further requested to indicate their status as a Foreign-owned/Foreign-controlled firm and any contemplated use of foreign national employees on this effort. Any information submitted by respondents to this sources sought synopsis is voluntary. The Air Force does not intend to award a contract on the basis of this notice or to otherwise pay for the information solicited. Respondents should not construe this synopsis as a commitment by the Air Force for any purpose. Capabilities package: All interested firms shall submit a capabilities package that explicitly demonstrates company capabilities and product specifications related to this effort. Responses may be submitted electronically to the following e-mail address: Jessica.Morgan@wpafb.af.mil in a Microsoft word compatible format or mailed to 88 CONS/PKAB. POC: Jessica L. Morgan, 1940 Allbrook Dr. Ste 3 Rm 109, Wright-Patterson AFB, Oh 45433-5309 to be received no later than 5:00 p.m. Eastern Daylight Time, 7 June 2010. Direct all questions concerning this acquisition to Jessica Morgan at (937) 522-4594.
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