UNSPSC 39121043: Rotary transformer

Stator amplifier used on rotating magnetic head of videocassette recorder to pick up the signals of videocassette recorder.

UNSPSC 39121043 Rotary transformer (Commodity) covers the procurement and installation of step-up and power distribution transformers serving potable water facilities, utility substations, and electrical infrastructure upgrades across state and local government operations. State and local buying under this code spans city utilities departments, regional power authorities, state university systems, and county transit agencies; recent solicitations show concentrated activity from municipal utilities and public water systems implementing distribution system modernizations and facility-level power upgrades. The work typically involves turnkey transformer installations—design, manufacturing, delivery, field assembly, testing, and commissioning—often bundled with switchgear, control systems, and auxiliary electrical infrastructure. Buyers frequently require compliance with ANSI and IEEE standards, liquated-damages provisions for late delivery, extensive insurance and bonding, and performance testing under both normal and abnormal operating conditions. Lead times extend 18 months or longer for large transformers, and proposals are evaluated on cost, delivery schedule, technical compliance, operational experience, and lifecycle considerations including energy losses.

Recent activity clusters in the Southeast and Southwest, with representative opportunities including the City of Cumming, Georgia (RFP for a 2,500 kW generator system with a 3,750 kVA step-up transformer at its Potable Water Production Facility, proposals due August 7, 2026), Lubbock Power & Light (RFP 7133-26-ELD for a 50 MVA 115–12.47 kV three-phase power transformer at Oliver Substation, proposals due August 5, 2026, with $1,000 daily liquidated damages and anticipated award by September 15, 2026), the City of Fairburn, Georgia (IFB 26-016 for underground power installation including 25 kV rated primary cable and pad-mount transformers, bids due July 22, 2026), and the City of Albany, Georgia (sealed bids for twelve 100 kVA and three 167 kVA pad-mount transformers, bids due June 8, 2026). The Texas Department of Criminal Justice has also solicited electrical system replacement including transformer installation at the Memorial Unit in Rosharon, with a $6.8 million estimated budget and June 8, 2026 deadline. The City of Austin (Austin Energy) maintains an as-needed contract for three-phase pad-mounted distribution transformers ranging 75–2,500 kVA across 20 configurations, with estimated annual usage of 285 units (RFP 1100 EAL3030, proposals due April 21, 2026).