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225 kVA pad mounted transformer

Three phase, liquid-filled, dead front, loop feed. Typically mid-rise office, larger school.

Rating
225 kVA
Dimensions, in
62 x 58 x 63
Weight
3,000 lb
Impedance
5.0%
Amps at 480 V
271

Standard configuration

Primary12470 GY/7200 or 13200 GY/7620
Secondary480Y/277, also 208Y/120 on smaller ratings
StandardsANSI/IEEE C57.12.34 and C57.12.00
EfficiencyDOE 2016 per 10 CFR Part 431
Temperature rise65 C
FluidMineral oil, FR3 natural ester on request
FrontDead front with separable elbow connectors
FeedLoop feed, six primary bushings. Radial available
TapsTwo above and two below nominal at 2.5 percent, full capacity
ULListed under CCN XPLH, liquid-filled distribution over 600 V

What to check before you order

  • Primary voltage and taps. A unit built at 12470 GY/7200 with a 13200 tap covers both common systems, but only if the taps are full capacity. How taps work
  • Dead front or live front. Most utilities will not accept live front on new work. The difference
  • Loop or radial feed. Loop feed needs six bushings and costs more. Which you need
  • Pad and clearance. At 3,000 lb this needs a proper pad and crane access. Clearance rules
  • Freight. A unit this size ships on a flatbed and often needs a crane at the far end. Freight quoted separately is the single most common surprise on a transformer order.

Who builds this rating

We quote this rating from both US stock and overseas production, and we tell you which is which. Send us your spec or call 786 220 2801.

Common questions on this rating

WeightAbout 3,000 lb including fluid
DimensionsRoughly 62 x 58 x 63 in, width by depth by height
Amps at 480Y/277About 271 A full load
Impedance5.0 percent, needed for any coordination study
Lead time40 to 60 weeks new from a US factory, days from stock
PriceWhat drives the number, then get it quoted

150 kVA · 300 kVA