2500 kVA substation transformers, 34.4 kV delta to 12.47Y/7.2 kV

Substation transformerCondition not statedListing #2074Location on request

Year built
Not stated
In service
Not stated
Equipment no.
Not stated
Manufacturer
Various: Westinghouse, Solomon and others

Price and quote

Price on request7 available

Price for the equipment. Your quote adds testing and delivery to your site.

  • Tested before it ships, and you see the report first
  • Delivered to your site, with rigging and freight quoted up front
  • Confirmed with the seller before we quote
Drawing for illustration. Photos and the nameplate are available on request.

Specifications

Rating
2,500 kVA
Primary
34,400 V delta
Secondary
12,470Y/7,200 V
Full-load current
116 A at 12.47 kV calculated from its rating
Phase
3-phase
Taps
±2 × 2.5%
Tap changer
One Westinghouse unit marked with a load tap changer
Impedance
5.50% to 6.36% across the 7 units
Weight
15,100 to 21,800 lb
Fluid
Oil, 679 to 1,049 gal per unit
Makes
Allis-Chalmers (1), GE (1), Jerry's Electric (1), Solomon (2), Westinghouse (2)

About this unit

Seven 34.4 kV station units with 12.47Y/7.2 kV secondaries in the stock of T&R Electric of Colman, South Dakota, from Allis-Chalmers, GE, Jerry's Electric, Solomon and Westinghouse; one Westinghouse is marked with a load tap changer. Serials, impedances and weights are listed, but no year or condition.

Listed October 18, 2026

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