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8836 SOWTechnical Specification Electric Utility High Voltage Circuit Breakers RFP # 8836 A. PURPOSE The purpose of this technical specification is to provide information that will allow prospective suppliers to prepare submissions to supply 345kV and 138kV circuit breakers manufactured by Siemens and Mitsubishi for use in substations. The circuit breakers are to be priced FOB destination to the Spencer Utility Site, 1701C Spencer Road, in Denton, Texas or to other substation sites in or near Denton as directed at the time of shipment. Freight shall be included in the price for each breaker. The owner is seeking proposals for both Siemens and Mitsubishi circuit breakers. Proposers may bid for one or both manufacturers. Contracts will be awarded for each manufacturer. However, this does not preclude any proposer from submitting proposals for both manufacturers. Breakers shall be shipped without any SF6 gas inside the breaker and without SF6 cylinders. Nameplates shall leave the SF6 weight value empty. Breaker manufacturer or distributor shall be able to provide the 61850 option described in this specification for all breakers offered in their proposal. B. ACCEPTABLE MANUFACTURERS DME will only accept submissions from specific manufacturers or distributors for the approved manufacturers list below. 1. SIEMENS 2. MITSUBISHI C. SERVICE CONDITIONS Site Location: The service location for these circuit breakers will be in substations in the Denton, Texas area. Service Elevation: Approximately 640 feet above sea level. Temperature: -20o F to 120o F. Other Considerations: Moderately humid climate with 10 to 30 inches of rain per year; wind up to 90 mph; thunderstorms with severe lightning occurring in all months of the year with the greatest frequency during the warmer months. D. SUBMISSIONS 1. Agreement and Submission Conditions: In submitting a proposal, the supplier understands that: a) No guarantee for any order is given nor intended by this specification. Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 2 of 7 b) Any purchase agreement, if awarded, shall be based on unit pricing for all of the standard circuit breakers listed and as specified. 2. Freight Charges: All circuit breakers and any other material shall be shipped FOB to Denton, Texas to addresses to be specified by the owner. Pricing shall include all costs to deliver goods as specified in this specification. Any special fees or commissions, and all freight for delivery to the City of Denton must be included in the quoted price. No separate freight charges will be accepted. 3. Evaluation and Award: Evaluation and award shall be in accordance with the information in the RFP document. All proposals will be evaluated using the following criteria: a) (40%) Pricing – The price of items. b) (20%) Compliance with Specifications – The respondent’s submittal shall comply with the requirements stated in the RFP and Technical Specification. Exceptions to the specification will be considered. c) (20%) Schedule/Leadtime – Total number of weeks from receipt of order to delivery. d) (20%) Probable Performance – Indicators of probable performance and reliability under the contract to include: past vendor performance, financial resources and ability to perform, experience, demonstrated capability and responsibility, references, and the vendor’s ability to provide reliable products and support. 4. Exceptions: Any deviation from this specification must be noted in writing with the proposal. Where deviations are noted, the City reserves the right to accept a proposal containing such deviations provided that, in the sole opinion of the City, the deviation or deviations do not affect the overall capability of the item bid to perform the function for which it is so intended. E. QUALITY CONTROL The manufacturer shall be responsible for the quality control of the manufacturing processes to assure that all requirements of these specifications are met. However, the City reserves the right to observe, to inspect and to require additional quality control investigations, either by its personnel or an independently employed quality control investigator, at any or all stages of fabrication at the manufacturer’s facilities. Inspections, with or without comment, shall not relieve the supplier of the requirement for conformance to the specification nor shall the inspections be construed as acceptance of work not in accordance with the intent of the specification. Failure to adequately maintain quality of fabrication until completion shall be grounds for cancellation of the order or any part thereof. Field failure or field repairs required due to quality control failures or manufacturing procedures shall be the responsibility of the manufacturer. Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 3 of 7 F. WRITTEN WARRANTY and GUARANTEES Written guarantees shall include any limitations as to the nature of failure or time limitations. The guarantee shall begin upon receipt of the accepted units, not on the date of manufacture. Guarantees shall indicate whether or not it is made on a full replacement basis or a prorated basis and if prorated then what are the terms. Manufacturer/supplier guarantees that the goods furnished under this specification are of high quality and agrees to replace any goods found to be defective during inspection, installation, or service for a minimum period of 60 months after unit is delivered to Denton. All replacements by the manufacturer/supplier shall be free of charge F.O.B. destination at the same delivery point called for in the original order. Replacements must be handled in a professional and timely manner. G. SPECIAL DELIVERY REQUIREMENTS 1. Shipment by open flatbed truck: Circuit breakers purchased under this agreement shall be shipped FOB Destination by open flatbed truck fully assembled and ready for installation. The owner will provide unloading and installation. 2. Delivery location: Circuit Breakers shall be delivered to the Spencer Utility Site, 1701C Spencer Road, Denton, Texas, 76205 or to other DME substation sites as directed at the time of shipment. 3. Notice of factory shipments: The supplier shall provide notice when the products are shipped. The owner only has a forklift to unload the products. Contact Brian Walding at (940) 390-3146 for notices of shipment. Secondary contact is Clinton Cranford at (214) 478-0911. Delivery of the products will be accepted only between the hours of 8:00 am and 3:00 pm Monday through Friday, excluding holidays. 4. Damaged or defective material or equipment: Circuit breakers that are obviously damaged on arrival will be refused. Any necessary action regarding replacement of materials or equipment delivered in unacceptable condition shall be the responsibility of the supplier. This includes concealed freight damage as well as items originally defective from the manufacturer. H. TECHNICAL RESPONSIBILITIES AND REQUIREMENTS 1. Detail Design: Detailed structural and electrical design is the responsibility of the supplier. All clearances and spacings must conform to ANSI standards, and the National Electrical Safety Code, whichever is more stringent. Greater clearances shall apply where specified. 2. Omissions: It is the intent of this specification to require the supplier to provide complete and fully functional circuit breakers that are equipped and featured appropriately to perform and operate as described herein. Further it is the intent of this specification to require that the circuit breakers be constructed, as a minimum, in accordance with all US standards that apply to circuit breaker manufacture and testing. Omission of any minor details from this specification, minor mistakes or typographical Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 4 of 7 errors in text, or mistakes in attempting to reference standards or data in the standards shall not relieve the supplier from the responsibility to furnish complete and fully functional circuit breakers that comply with accepted national standards and meet the intents communicated herein. 3. Shop Assembly and Preparation for Shipment: The circuit breakers shall be shipped completely assembled ready for mounting on foundations and installation of HV and control electrical connections. Circuit breakers shall be fully tested at the facility of the supplier. 4. Delivery Schedule: The supplier shall submit a schedule with the proposal indicating the expected time (ARO) when approval drawings will be provided for each circuit breaker ordered and the time (ARO) when the circuit breakers will be delivered, assuming one week return on approval drawings. 5. Drawing Identification: All drawings shall be identified with a unique drawing number, the date, the manufacturer’s shop order number, the owner’s name, purchase order number, and the name of the substation where the circuit breaker will be installed. 6. Approval of Design: The owner shall have an opportunity to approve the design, features and accessories of circuit breakers for the first order. Subsequent orders of the same type of circuit breakers will not require approval drawings, unless specifically stated on the purchase order. Approval drawings shall contain sufficient information to confirm all data that was included in the proposal. The owner shall be furnished with an electronic set of approval drawings, equipment descriptive information, and any appropriate comments or notations at or before the time stated in the proposal. The owner will return drawings marked "approved" or "revised as noted". If changes are identified in the owner’s review, a revised drawing submittal may, at the owner’s option, be required to obtain final approval. Review of drawings by the owner will be with respect to general design and functionality, but shall not be construed to relieve the supplier from any responsibility or liability for proper design, fabrication, compliance with the specifications, compliance with standards, or for any errors that may have been contained in the shop drawings. The approval drawings shall provide information in sufficient detail to describe equipment operation and function, dimensions, space needs for installation, and recommended clearances for proper operation. The approval submittal shall include at least the following items: a. Outline drawings with all parts identified by item number referenced to a list of material. These drawings shall show detailed dimensions, locations of all components and devices, recommended clearances for proper operation and any special mounting requirements. b. Operational drawings including control schematics and connection diagrams. c. Nameplate data with associated information: The manufacturer’s name, model number, date of manufacture, serial number, voltage and amperage ratings (continuous and short circuit) for each circuit breaker. d. Descriptive literature and drawings for all accessories and optional items. Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 5 of 7 7. Final Drawings, Instruction Books, and test Reports: No later than the scheduled first shipment, the supplier shall furnish an electronic set of instruction books and final drawings for each circuit breaker shipped. The set shall include at least the following: a. An electronic set of final drawing in AutoCAD “dwg” format along with a list of all drawing titles and file names. b. Operation instruction and descriptive literature c. Maintenance instructions. d. Parts list 8. Materials and Workmanship: Only new materials shall be used in fabrication of these circuit breakers. Damaged or defective materials shall not be repaired and used. No peening, caulking, or filling shall be permitted in repairing cracks, pinholes, or other types of defects. Such defects in fabricated members shall be repaired by replacement. I. DESIGN FEATURES 1. Circuit breakers shall conform to control schematics attached as exhibit 4. 2. Owner will make all external bushing connections and all terminations for external connections to breaker control cabinet. 3. Circuit breakers shall be equipped and furnished as follows: a. Control and operator power requirements: Control supply voltage: 125VDC Spring charge motor supply voltage: 120VAC/125VDC Accessory supply voltage: 120VAC Heater Supply Voltage: 240VAC b. Fused knife switches (ACC / motor / heater circuits) c. One close coil d. Dual trip coils configured to receive trip signals from two independent sources. e. Control switch f. Local/remote selector switch g. Loss of voltage relays (close and trip circuits) h. Position indicator lights i. Time delay relay j. External manual trip device k. Thermostatically (adjustable) controlled cabinet heaters l. Auxiliary switches with 12a and 12b spare contacts for owner use m. GFI outlet inside control cabinet n. Wire markers on CT wiring Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 6 of 7 o. Breaker frame mounted temperature compensated density switch and gauge p. Stainless steel nameplates according to IEEE/ANSI standards q. 14 AWG Type SIS control wiring (or larger) r. 10 AWG Type AMW-TEW CT wiring s. 4-500 MCM grounding terminals on frame t. NEMA type 3R control cabinet painted ANSI 70 grey u. NEMA 4 hole un-plated aluminum terminals v. Galvanized frame and leg assemblies w. Standard SF6 installation toolkit x. 61850 Options (As described in section below) 4. 138kV Gas Circuit Breakers: a. 138kV nominal voltage b. 40kA, 50kA, and 63kA maximum symmetrical interrupting capability as required c. 3000A or 4000A maximum continuous current d. Capable of -30°C operation without tank heaters e. 131 inch creep porcelain bushings rated 650kV BIL @ 3300 feet ASL f. 3-cycle, 60Hz, spring-spring operated g. Gang operation, frame mounted outdoor circuit breaker h. Compact frame with reduced footprint i. Frame mounted density switch j. Bushing Current Transformers – 2 CT’s per bushing (total 12 BCT’s): Bushings 1-3-5: (6) 2000:5 MR C800, relay accuracy, RF 2.0 Bushings 2-4-6: (6) 2000:5 MR C800, relay accuracy, RF 2.0 5. 345kV Gas Circuit Breakers: a. 345kV nominal voltage b. 50kA and 63kA maximum symmetrical interrupting capacity c. 4000A maximum continuous current d. Capable of -30°C operation without tank heaters e. 356 inch creep porcelain bushings rated 1300kV BIL @ 3300 feet ASL f. 2-cycle, 60Hz, spring-spring operated g. Independent pole operation h. Independent frame mounted outdoor circuit breaker Technical Specifications Supply of Electric Utility High Voltage Circuit Breakers RFP 8836 Page 7 of 7 i. Bushing current transformers – 2 CT’s per bushing (total 12 BCT’s): Bushing 1-3-5: (6) 3000:5 MR C800, relay accuracy, RF 2.0 Bushing 2-4-6: (6) 3000:5 MR C800, relay accuracy, RF 2.0 6. 61850 Option (Manufacturer and City of Denton to determine final arrangement and wiring at drawing approval stage) Manufacturer shall provide the following 61850 equipment for this option:  Separate Cabinet for 61850 Equipment with (2) 2.5” conduits to the main cabinet and cutout in bottom large enough for (2) 2.5” conduits with the following equipment mounted inside the cabinet. o (2) Schweitzer Engineering Labs 0401015X3600XD9H424XXXXXX powered by separate fuses. o Terminal Blocks - provide wiring from all SEL-401 inputs, outputs, CT inputs, PT inputs, alarms, power, etc. to the terminal blocks. (Exact wiring to be determined at drawing approval.) o Test Switches for CT and PT circuits. Please use the models below as needed. o Fiber Splice Panel Multilink FRM-4U If the manufacturer already provides a 61850 option, please provide this option with pricing. 7. Spare Parts: The manufacturer shall provide a list and option pricing for recommended spare parts.