54/79/90 MVA substation transformer, 66 kV delta to 34.5 kV GrdY, with load tap changer

Substation transformerNew surplusListing #2393USA

Year built
Not stated
In service
Never energized
Equipment no.
JJ-WEG-66-90
Manufacturer
WEG

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
54/79/90 MVA, ONAN/ONAF1/ONAF2
Primary
66,000 V delta
Secondary
34,500 V grounded wye
Full-load current
904 A at 54 MVA, 1,322 A at 79 MVA and 1,506 A at 90 MVA, at 34.5 kV calculated from its rating
Phase
3-phase, 60 Hz
Vector group
Dyn1
Tap changer
LV on-load, 31.05 to 37.95 kV, 16 raise and 16 lower steps of 0.625%
Impedance
8.63% at 54 MVA (design)
BIL
350 kV HV, 200 kV LV
Fluid
Inhibited Type II mineral oil
Windings
Copper
Weight
210,903 lb total (design)

About this unit

Brand-new, never-energized WEG unit held in the USA and offered by broker J&J Transformers, which confirmed availability on September 24, 2026. The figures come from approval and preliminary design drawings, so final tested impedance and installation drawings must still be confirmed. Price on request, subject to prior sale.

Listed October 18, 2026

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