12/16/20 MVA substation transformer, 138 kV delta to 13.2GrdY/7.62 kV

Substation transformerNew surplusListing #2453Location on request

Year built
Not stated
In service
Not stated
Equipment no.
STT-06-0026
Manufacturer
Waukesha

Price and quote

Price on request

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
12/16/20 MVA, ONAN/ONAF/ONAF, 65 °C rise
Primary
138,000 V delta
Secondary
13,200GrdY/7,620 V
Full-load current
525 A at 12 MVA, 700 A at 16 MVA and 875 A at 20 MVA, at 13.2 kV calculated from its rating
Phase
3-phase, 60 Hz
Impedance
9.59%
Taps
144,900, 141,450, 138,000, 134,550 and 131,100 V
BIL
450 kV HV, 110 kV LV
Windings
Copper
Accessories
Liquid level gauge, electronic temperature monitor, pressure relief device, sudden pressure relay, pressure-vacuum bleeder, pressure gauge

About this unit

Unused surplus Waukesha step-down unit offered by CTG Grid Solutions, which shares its phone line and stock numbering with Tampa-based CTG Power Systems; a technical offering sheet can be downloaded. No year, weight, fluid type, unit location or price is given.

Listed October 18, 2026

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