Utility-grade 1993 Cooper/McGraw-Edison substation transformer, 15/20/25 MVA base and 28 MVA top rating, 69 kV delta to 24.94 GrdY/14.4 kV with a ±10% on-load tap changer. On the ground in Florida near Tampa. Sold as-is, where-is for rebuild, spare, or reuse. Price on request.
Lead times for new substation power transformers are still long. CTG Grid Solutions is marketing a decommissioned 69 kV class substation transformer that is on the ground in Florida today and available as-is, where-is. It is a practical starting point for a rebuild, a system spare, or a capacity project where schedule matters.
The unit is a 1993 Cooper Power Systems (McGraw-Edison) three-phase, 60 Hz, OA/FA/FA design rated up to 28 MVA at 65 °C. It has a 69 kV delta primary (350 kV BIL), a 24.94 GrdY/14.4 kV secondary (150 kV BIL), and a ±10%, 33-position on-load tap changer with LTC-4C control. Windings are copper. The tank is nitrogen blanketed and filled with non-PCB mineral oil. The owner reports it came out of service about two years ago for a capacity upgrade.
Condition: Surplus, removed from service. Sold as-is, where-is, without warranty.
| Manufacturer / year | Cooper Power Systems (McGraw-Edison), U.S.A., December 1993 |
| Ratings | 15/20/25 MVA at 55 °C; 16.8/22.4/28 MVA at 65 °C; OA/FA/FA |
| Primary | 69,000 V delta, 350 kV BIL; DETC 5 positions (±2 x 2.5%) |
| Secondary | 24,940 GrdY/14,400 V, 150 kV BIL |
| Tap changer | McGraw-Edison LTC, ±10%, 33 positions; LTC-4C controller |
| Impedance | 7.1% at 15 MVA |
| Windings | Copper |
| Fluid | Mineral oil, 3,936 gal total; non-PCB |
| Preservation | Sealed tank, nitrogen gas-pressure system |
| Bushings | ABB O+C; LV bushings replaced 2015 |
| Weight | 95,865 lb total; 39,550 lb untanking weight |
| Location | Florida, near Tampa |
| Terms | As-is, where-is, without warranty; price on request |
Nameplate, maintenance history, oil and electrical test data, and more photos are available for technical review. Site inspection and oil sampling can be arranged at the buyer's cost. Removal and transport are the buyer's responsibility.
Contact CTG Grid Solutions at (813) 920-3500 or Sales@CTGPowerSystems.com to request the offering package or set up an inspection. Reference Lot FL-XFMR28.
Offered AS-IS, WHERE-IS, WITH ALL FAULTS, and WITHOUT WARRANTY OF ANY KIND, express or implied, including any implied warranty of merchantability or fitness for a particular purpose. Specifications are taken from the manufacturer's nameplate and the owner's records and are provided for information only. Subject to prior sale and to execution of a definitive written purchase agreement. Offered to principals only; brokers and intermediaries are not accepted.
