45 MVA substation transformers

A 45 MVA three-phase transformer carries 6,245 A at 4.16 kV, 2,083 A at 12.47 kV and 1,883 A at 13.8 kV at full load.

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

Full-load current of a 45 MVA transformer

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

VoltageFull-load current
4.16 kV6,245 A
12.47 kV2,083 A
13.2 kV1,968 A
13.8 kV1,883 A
24.94 kV1,042 A
34.5 kV753 A
69 kV377 A
115 kV226 A
138 kV188 A

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

Questions about used 45 MVA substation transformers

How many amps is a 45 MVA transformer?

A 45 MVA three-phase transformer carries 6,245 A at 4.16 kV, 2,083 A at 12.47 kV and 1,883 A at 13.8 kV at full load. Full-load current is the rating divided by √3 times the line-to-line voltage: 45,000,000 VA ÷ (1.732 × 4160 V) = 6,245 A.

What 45 MVA substation transformers does Arcbarn have for sale?

Arcbarn has 8 listings, by makers including Prolec, ABB and ABB/McGraw Edison. The listed price is $750,000, and 7 are priced on request.

How much does a 45 MVA substation transformer weigh?

The 2 listed here with a weight run from 278,700 lb to 285,000 lb.

What tests does Arcbarn run on a used 45 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.