Sources Sought - Transformer Refurbishment for WAPA Tracy Substation (Byron, CA)

Other / Unclassified

This document is a "Delta-X TOA Analysis Report" for the TCY KT2A-A / XFMR N132051 equipment. It provides a detailed analysis of the dissolved gas content, fluid quality, and breathing status of the transformer oil. The report includes data from multiple sample dates, with the most recent analysis performed on 2025-10-20.

This report is relevant to bidders as it provides critical operational and maintenance data for a specific piece of electrical equipment. Understanding the condition of the transformer oil, as detailed in this report, can inform bidders about the existing state of the asset, potential risks, and any ongoing maintenance or performance considerations. This information is crucial for assessing the scope of work, potential challenges, and the overall suitability of a bidder's proposed services or equipment for opportunities related to this transformer.

Form / Attachment / Pricing Sheet

This document is a nameplate for a Hyundai Auto Transformer, providing detailed technical specifications and identification information for the unit.

• Manufacturer: Hyundai
• Model/Serial Number: RP-8451 / 04873T10015-3
• Type: Auto Transformer
• Electrical Specifications:
  • Number of Phases: Single Phase
  • Rated Frequency: 60 Hz
  • Cooling Type: OA/FA/FOA
  • Insulation Liquid: ASTM D3487
  • Rated Power: Varies by winding (e.g., H.V: 170/226.67/283.33 MVA)
  • Rated Voltage: Varies by winding (e.g., H.V: 525//3 kV)
  • Rated Current: Varies by winding (e.g., H.V: 561/748/935 A)
  • B.I.L: Varies by winding (e.g., H.V: 1425/150 kV)
  • Impedance: Specified percentages based on MVA ratings.
• Physical Specifications:
  • Temperature Rise (Winding/Oil): 55/55 °C
  • Sound Level: 64.60/67.52dB
  • Conductor Material: Copper
  • Approximate Weight: Total 505,400 lbs (including untanking, tank and fittings, and insulating oil).
• Manufacturing Details:
  • Year of Manufacturing: 2001.9
  • Tank Design: 100Kpa vacuum filling.
  • Oil: Inhibited, no detectable PCB (<1PPM).
  • Vector Group: Grounded Wye for HV & LV, Delta for TV.

This nameplate provides critical technical specifications for a specific transformer unit. Bidders may use this information to verify compatibility with existing systems, understand performance capabilities, or ensure compliance with technical requirements if this unit is part of a larger procurement or replacement effort.

Other / Unclassified

This document is a JPEG image (Exhibit 10.jpeg) depicting an electrical substation. It shows numerous large transformers, circuit breakers, and associated electrical infrastructure, including support structures and overhead power lines. The ground is covered in gravel, and a fence is visible in the background, along with rolling hills and wind turbines.

This image likely serves as a visual reference or site survey for a potential opportunity related to electrical infrastructure maintenance, upgrade, or construction. Bidders may use this image to understand the existing site conditions, scale of equipment, and general environment of the work location.

Form / Attachment / Pricing Sheet

This document is a nameplate for a Hyundai Auto Transformer, providing detailed technical specifications and operational parameters. It serves as a reference for understanding the transformer's capabilities and characteristics.

• Model: RP-8451
• Manufacturer: Hyundai Heavy Industries Co., Ltd.
• Ratings:
  • Rated Power: 170/226.67/283.33 MVA (HV & X.V), 28/35/46.7 MVA (Y.V)
  • Rated Voltage: 551250//3 kV (HV), 230000//3 kV (XV), 36225.0 V (YV) with multiple tap settings.
  • Rated Frequency: 60 Hz
• Impedance: 7.337% (HV-X.V) at 170 MVA.
• Weights: Approximate weight (untanking, tank and fittings, oil, transportation) are provided.
• Cooling: OA/FA/FOA with temperature rise limits.
• Insulating Liquid: ASTM D3487, oil inhibited and contains no detectable PCB.
• Bushings: Details on current transformers (CTs) with type, ratio, burden, and class.
• Vector Diagram: Illustrates the bank connection and polarity (subtractive).
• Over-Load Capacity: 30-minute over-load capacity is 366667KVA (HV & LV) and 46700KVA (TV).
• Over-Voltage Capacity: HV winding has 30-cycle over-voltage capacity of 615KV and 30-minute duration over-voltage capacity of 575KV.

This document provides critical technical specifications for a transformer. Bidders involved in opportunities requiring transformers of this nature should review these details to ensure their proposed solutions meet or exceed these requirements. It is essential for understanding the physical and electrical characteristics of the equipment, including its capacity, voltage levels, impedance, and special operational limits.

Form / Attachment / Pricing Sheet

This document is a nameplate for a Hyundai Auto Transformer (Model RP-8451). It provides detailed technical specifications and ratings for the transformer.

• Manufacturer: Hyundai Heavy Industries Co., Ltd.
• Model: RP-8451
• Type: Auto Transformer, Single Phase
• Cooling: Standard (OA/FA/FOA)
• Frequency: 60 Hz
• Temperature Rise: 55/55 °C
• Winding Material: Copper
• Rated Power: 170/226.67/283.33 MVA (HV & LV), 28/35/46.7 MVA (TV)
• Rated Voltage: 525 kV (HV), 230 kV (LV), 34.5 kV (TV)
• Rated Current: 561/748/935 A (HV), 1280/1707/2134 A (LV), 812/1014/1354 A (TV)
• BIL: 1425/150 kV (HV), 750 kV (LV), 200 kV (TV)
• Impedance: Specified at rated voltage and 75°C.
• Approximate Weight: 505,400 lbs total.
• Manufacturing Year: 2001
• Special Notes: Oil is inhibited and contains no detectable PCB. Vector group is grounded Wye for HV & LV, Delta for TV. The HV winding has 30-cycle over-voltage capacity of 615kV and 30-minute duration over-voltage capacity of 575kV.

This document provides critical technical specifications for a transformer. Bidders involved in opportunities requiring transformers of this size and capacity should review these details to ensure their proposed equipment meets or exceeds these specifications. It details power ratings, voltage levels, current capacities, and physical characteristics, which are essential for system integration and performance.

Form / Attachment / Pricing Sheet

This document is a nameplate for a HYUNDAI AUTO TRANSFORMER (Model RP-8451, Serial No. 04873T10015-3). It provides detailed technical specifications and operational parameters for the transformer.

• General Specifications: Single phase, OA/FA/FOA cooling, rated frequency of 60 Hz, ANSI C57.12.00 standard, temperature rise of 55/55 °C, sound level of 64.60/67.52 dB.
• Winding and Ratings: Includes rated power, rated voltage, rated current, and BIL for High Voltage (H.V), X.V, and Y.V windings. Specific values are provided for different cooling methods (OA, FA, FOA).
• Impedance: Impedance at rated voltage and 75°C is listed for H.V-X.V, H.V-Y.V, and X.V-Y.V configurations.
• Tap Settings: Detailed tap voltage settings for High Voltage (HV), Low Voltage (XV), and Tertiary Voltage (YV) sides, along with corresponding amperage ratings.
• Current Transformers (CTs): Specifications for various current transformers (CT1-CT6) including ratio, burden, and class.
• Vector Diagram and Bank Construction: Illustrates the vector diagram and bank connection of the transformer.
• Over-Load Capacity: The 30-minute over-load capacity is 366667 KVA for HV and LV windings, and 46700 KVA for the TV winding.
• Over-Voltage Capacity: The HV winding has a 30-cycle over-voltage capacity of 615 KV and a 30-minute duration over-voltage capacity of 575 KV.
• Manufacturer: HYUNDAI HEAVY INDUSTRIES CO., LTD., ULSAN, KOREA.
• Year of Manufacturing: 2001.

This document provides critical technical specifications for a transformer. Bidders involved in opportunities requiring this specific transformer, or similar equipment, can use this information to understand the exact technical requirements, performance capabilities, and physical characteristics of the unit. This is essential for determining suitability, preparing technical proposals, and ensuring compatibility with existing systems.

Statement of Work (SOW) / Performance Work Statement (PWS)

This Performance Work Statement (PWS) outlines the requirements for the refurbishment of the KT2A transformer located at the Tracy substation (TCY) for the Western Area Power Administration (WAPA), Sierra Nevada Region (SNR).

• Provide all personnel, transportation, equipment, tools, materials, and supervision necessary for the transformer refurbishment.

• Perform technical services to refurbish the transformer and ensure continuous and reliable operation.

• Comply with all applicable federal, state, and local laws and regulations, FCC regulations, and Original Equipment Manufacturer (OEM) specifications.

• Specific tasks include:

  • Pre-testing
  • Draining
  • Re-gasketing bushings, radiators, and accessories
  • Replacing Trench COTA H1, H2, H3 bushings (Government furnished)
  • Replacing 3 ea. COPS Bladders (Contractor supplied)
  • Hot oil cleaning
  • Vacuum filling
  • Post electrical testing
  • Replacing 3ea. PRDs (contractor furnished)
  • Welding 6ea. DBI Sala mast mounts (GFE mast mounts)
  • Replacing oil level gauges, winding temperature gauges, and oil temperature gauges (contractor installation and parts)
  • Replacing updated sudden pressure devices and seal-in relays (contractor installation and parts)
  • Replacing Buchholtz gas detection relays (contractor installation and parts)
  • Installing PCore test terminals on H bushings

• Dispose of all waste materials from the site.

• Period of Performance: October 01, 2027, to December 31, 2027.

• Place of Performance: Tracy Substation, 16800 W. Kelso Road, Byron, CA 94514.

• Normal work hours: Tuesday through Friday, 7:00 a.m. to 3:30 p.m., excluding US Federal Holidays.

• Contractor personnel must be qualified, trained, and skilled.

• Personnel must present a neat appearance and wear distinctive company clothing.

• A qualified on-site representative must be available.

• A Safety Plan, Pollutant Spill Prevention Notification and Clean-up Plan, and a proposed Work Schedule must be submitted within 10 calendar days after contract award.

• Safety Data Sheets (SDS) for any chemicals used must be provided.

• Certificates of Reported Compliance for diesel equipment must be submitted.

• A Quality Control Plan (QCP) must be developed and maintained.

• Compliance with all applicable safety, health, and environmental regulations is required.

• Off-road diesel equipment must comply with In-Use Off Road Diesel equipment standards.

• Contractor is responsible for disposal of all waste materials.

• Government will provide electrical power and water where available; contractor must provide for sites without these utilities.

• Contractor must provide off-site storage for materials and equipment.

Form / Attachment / Pricing Sheet

This document is an image file (Exhibit 13.jpeg) attached to a SAM.gov opportunity record. It appears to be a photograph of electrical substation equipment, specifically a large power transformer.

The image displays a transformer with associated components, including bushings, radiators, and a control cabinet. The equipment is situated outdoors in what appears to be an electrical substation environment.

While this document does not contain textual information like a solicitation or SOW, it may serve as a visual reference for the type of equipment or infrastructure relevant to the opportunity. Bidders should review the image to understand the physical context or specific hardware associated with the requirement, if applicable.

Other / Unclassified

This document is an image (Exhibit 12.jpeg) depicting a large electrical transformer situated outdoors in what appears to be a substation or industrial facility. The transformer is gray and features numerous cooling fins, bushings, and associated electrical connections. Power lines are visible overhead, connecting to the transformer's bushings. The surrounding area consists of gravel, concrete foundations, and other electrical infrastructure in the background.

This image serves as a visual reference, likely an exhibit, for a SAM.gov opportunity. Bidders should review this image to understand the physical context or the type of equipment involved in the opportunity. It may be relevant for opportunities related to the installation, maintenance, repair, or replacement of electrical infrastructure, specifically large transformers, or for site surveys and assessments.

Other / Unclassified

This document is an image (Exhibit 11.jpeg) depicting electrical substation equipment, specifically a large power transformer with associated components such as radiators, bushings, and a conservator tank. The image also shows supporting infrastructure like power lines, insulators, poles, and grounding material.

This image may serve as a visual aid or reference for a potential opportunity related to electrical infrastructure, power systems, substation maintenance, or equipment procurement. Bidders interested in such opportunities can use this image to gain a visual understanding of the type of equipment and environment involved.

Form / Attachment / Pricing Sheet

This document is a Delta-X TOA Analysis Report detailing the dissolved gas analysis (DGA) and fluid quality of transformer oil for the TCY KT2A-C/XFMR N132053.

• Dissolved Gas Analysis (DGA): Provides detailed measurements of various gases (Hydrogen, Methane, Ethylene, Acetylene, Carbon Monoxide, Carbon Dioxide, Oxygen, Nitrogen) in the oil, along with derived ratios and indicators (e.g., CO2/CO, Acetylene/Hydrogen).
• Fluid Quality Analysis: Includes tests for dielectric breakdown, power factor (PF), acid number, interfacial tension, specific gravity, viscosity, flash point, color, and oil quality index.
• Breathing Status Analysis: Assesses the oil's preservation system and breathing status based on Oxygen and Nitrogen levels.
• Moisture Analysis: Reports moisture content, relative saturation, and dew point of the oil.
• Historical Data: Presents trends and diagnostic charts for key parameters over time (2016-2025).
• Results: Summarizes DGA results, gassing status, and HF %/yr combined, indicating no significant fault gas production or anomalies.

This report provides critical condition monitoring data for the transformer oil. Bidders may use this information to understand the current state of the equipment, assess potential risks, and inform their proposals for maintenance, repair, or replacement services. The detailed analysis of various oil parameters can highlight specific areas of concern or confirm satisfactory operational status.

Form / Attachment / Pricing Sheet

This document is a "TOA Analysis Report" for the TCY KT2A-B/XFMR N132052 equipment. It provides a detailed analysis of the dissolved gas content, breathing status, moisture, and fluid quality of the transformer oil. The report includes historical data and trends from multiple sample dates, along with diagnostic charts and remarks.

• Dissolved Gas Analysis: Details levels of various gases (Hydrogen, Methane, Ethylene, Acetylene, CO, CO2, etc.) and their implications for transformer health.
• Breathing Status Analysis: Assesses the oil preservation type and its condition based on oxygen and nitrogen levels.
• Moisture Analysis: Reports the water content in the oil and its impact on dielectric properties.
• Fluid Quality: Examines various physical and chemical properties of the transformer oil, including dielectric breakdown, viscosity, and acid number.
• Historical Data & Charts: Presents trends and graphical representations of the analyzed parameters over time.

This report provides critical diagnostic information about the condition of the transformer oil. Bidders can use this data to understand the current operational status and potential maintenance needs of the equipment. It serves as a factual basis for assessing the equipment's health and any associated risks or requirements that might be relevant to a potential contract or service agreement. The detailed analysis helps in evaluating the scope of work, potential challenges, and the overall condition of the asset being discussed in a related opportunity.