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Power Transformer, 116/21.9Kv

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Power Transformer, 116/21.9Kv No. SS1405 TECHNICAL ToC Page 1 SPECIFICATION REV DATE: 07/17 10 CATEGORY TRANSFORMERS/ REGULATORS SUBJECT POWER TRANSFORMER, 116/12.47 kV TABLE OF CONTENTS 1. PURPOSE....................................................................................................................................................... 1 2. DEFINITIONS ................................................................................................................................................. 1 3. SCOPE ........................................................................................................................................................... 1 4. REFERENCES .................................................................................................................................................. 3 5. SERVICE CONDITIONS ................................................................................................................................... 7 6. CONSTRUCTION ............................................................................................................................................ 8 7. RATINGS ....................................................................................................................................................... 8 8. TRANSPORTATION & HANDLING REQUIREMENTS ........................................................................................ 9 9. STRUCTURAL DESIGN .................................................................................................................................. 10 10. SEISMIC REQUIREMENTS ............................................................................................................................ 11 11. ANCHORAGE APPENDAGES ......................................................................................................................... 11 12. DESIGN REVIEW .......................................................................................................................................... 12 13. TANK, BASE AND ACCESSORIES ................................................................................................................... 12 14. JACKING PADS AND LIFTING TRUNNIONS ................................................................................................... 13 15. TANK COVER ............................................................................................................................................... 15 16. FLANGES, GASKETS AND MANHOLES .......................................................................................................... 15 17. GROUNDING PADS ...................................................................................................................................... 16 18. TANK AND BASE MATERIALS ....................................................................................................................... 16 19. WELDING .................................................................................................................................................... 17 20. CONNECTION MATERIALS ........................................................................................................................... 18 21. PAINTING/COLOR ....................................................................................................................................... 19 22. FALL PROTECTION ....................................................................................................................................... 19 23. CORE AND COILS ......................................................................................................................................... 20 24. CURRENT TRANSFORMERS ......................................................................................................................... 24 25. BUSHINGS ................................................................................................................................................... 25 26. SURGE ARRESTERS ...................................................................................................................................... 27 27. LOAD TAP CHANGER (LTC) EQUIPMENT ...................................................................................................... 28 No. SS1405 TECHNICAL ToC Page 2 SPECIFICATION REV DATE: 07/17 10 CATEGORY TRANSFORMERS/ REGULATORS SUBJECT POWER TRANSFORMER, 116/12.47 kV 28. ACCESSORIES AND CONTROL DEVICES ........................................................................................................ 31 29. CONTROL POWER ....................................................................................................................................... 35 30. SMUD CABLES, WIRING AND LABELING ...................................................................................................... 36 31. COOLING SYSTEM ....................................................................................................................................... 37 32. OIL PRESERVATION SYSTEM ........................................................................................................................ 38 33. TRANSFORMER OIL ..................................................................................................................................... 42 34. SOUND LEVEL .............................................................................................................................................. 43 35. TESTING ...................................................................................................................................................... 43 36. PHOTOGRAPHS ........................................................................................................................................... 52 37. LOSS EVALUATION ...................................................................................................................................... 52 38. BID SUBMITTAL ........................................................................................................................................... 53 39. CONTRACT SUBMITTALS ............................................................................................................................. 55 40. INSTRUCTION BOOK REQUIREMENTS ......................................................................................................... 58 41. QUALITY ASSURANCE.................................................................................................................................. 59 42. INSPECTION AND HOLD POINTS .................................................................................................................. 60 43. PREPARATION FOR SHIPMENT .................................................................................................................... 60 44. SHIPMENT AND DELIVERY ........................................................................................................................... 61 45. FIELD SERVICES ........................................................................................................................................... 63 46. ATTACHMENTS ........................................................................................................................................... 64 REV PAGE TECHNICAL POWER TRANSFORMER, 116/12.47 kV SPECIFICATION 10 1 of 64 № SS1405 1. PURPOSE 1.1 This specification has been developed to procure 116/12.47 kV, oil-filled, power transformers. The specification provides detailed requirements for the power transformer including design, documentation, furnishing, manufacturing, transporting, delivery, off-loading, on-site assembly, oil processing and testing. 1.2 This specification and all attachments are intended to inform the Contractor of technical requirements, design parameters, documentation requirements and evaluation criteria that must be incorporated into the design, manufacturing, performance, documentation, delivery, assembly and testing of the transformers. 2. DEFINITIONS 2.1 SMUD (Sacramento Municipal Utility District) - The purchaser and end user of the power transformers. 2.2 Contractor – The provider/bidder/manufacturer of the power transformers. 3. SCOPE 3.1 The transformer shall consist of three-phase, step-down power transformer with automatic load tap changer designed to supply a three-phase, four wire, grounded wye distribution system. 3.2 This Contractor shall be responsible for all shipping, drayage, and placing each transformer on SMUD’s designated foundation pad located in Sacramento County, California. 3.3 The Contractor shall also be responsible for onsite assembly, oil processing & filling, and testing the transformer after delivery. 3.4 The power transformer shall be complete with all accessories for installation, connection and immediate service. 3.5 All brackets, adapters, threaded fasteners, and other hardware necessary for complete field assembly of the transformer and accessory equipment shall be supplied. 3.6 All supplied materials shall be itemized on a complete bill of material. 3.7 The successful Contractor shall be responsible for providing a comprehensive structural engineering report for the transformer. The report shall include detailed REV PAGE TECHNICAL POWER TRANSFORMER, 116/12.47 kV SPECIFICATION 10 2 of 64 № SS1405 design calculations, drawings, material information, quality control documentation, fabrication/assembly procedures
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