90 MVA substation transformers

A 90 MVA three-phase transformer carries 4,167 A at 12.47 kV, 3,765 A at 13.8 kV and 1,506 A at 34.5 kV at full load.

Every unit is tested before it ships and delivered by us.

Full-load current of a 90 MVA transformer

Three-phase, at the usual line-to-line voltages: the rating in VA divided by √3 and the voltage.

VoltageFull-load current
12.47 kV4,167 A
13.2 kV3,936 A
13.8 kV3,765 A
24.94 kV2,083 A
34.5 kV1,506 A
69 kV753 A
115 kV452 A
138 kV377 A

Work it out at another voltage with the kVA to amps calculator.

Questions about used 90 MVA substation transformers

How many amps is a 90 MVA transformer?

A 90 MVA three-phase transformer carries 4,167 A at 12.47 kV, 3,765 A at 13.8 kV and 1,506 A at 34.5 kV at full load. Full-load current is the rating divided by √3 times the line-to-line voltage: 90,000,000 VA ÷ (1.732 × 12470 V) = 4,167 A.

What 90 MVA substation transformers does Arcbarn have for sale?

Arcbarn has 4 listings, by makers including BEST Transformers, JSHP and Prolec GE. All 4 are priced on request.

What tests does Arcbarn run on a used 90 MVA substation transformer?

Every unit is tested before it ships: turns ratio (TTR) on every tap; insulation resistance; winding resistance; power factor and capacitance; oil sample: dissolved gas analysis and dielectric strength; tap changer inspection and operation. You see the report before you buy.