30/40/50/56 MVA substation transformer, 138 kV delta to 13.8Y/7.97 kV, with load tap changer

Substation transformerUsedListing #3185Location on request

Year built
Not stated
In service
Not stated
Equipment no.
CTG~45003
Manufacturer
Federal Pacific

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
30/40/50/56 MVA, OA/FA/FA, 55/65 °C rise
Primary
138,000 V delta
Secondary
13,800Y/7,970 V
Full-load current
1,255 A at 30 MVA, 1,673 A at 40 MVA, 2,092 A at 50 MVA and 2,343 A at 56 MVA, at 13.8 kV calculated from its rating
Phase
3-phase
Impedance
8.7%
Taps
HV 144,900, 141,450, 138,000, 134,550 and 131,100 V
Tap changer
Load tap changer on the LV side, 16 steps up and 16 down
BIL
550 kV HV, 110 kV LV
Windings
Copper
Fluid
Oil, 8,220 gal
Weight
187,000 lb

About this unit

Used surplus Federal Pacific load-tap-changing substation unit offered by Tampa-based CTG Power Systems, with core, tank and oil weights listed and a specification sheet to download. No year, unit location or price is given.

Listed October 18, 2026

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