GE transformer buyer's roundup — You’re evaluating a 150 kVA dry-type transformer for a continuous process load. The datasheet shows 98.2% efficiency and a price tag. [...]
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GE transformer buyer's roundup — Every plant electrician I’ve talked to has the same story: they sized a dry-type transformer by kVA, connected a non-linear load, and within two years the winding insulation was cooked. [...]
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GE transformer buyer's roundup — You just ordered a 150 kVA transformer. The nameplate says 97.8% efficient. By the time it’s installed, it sees 40% load, the secondary voltage sags under tap, and the core losses are running 24/7. [...]
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GE transformer buyer's roundup — You sized a 75 kVA dry-type for a factory expansion. Now production added a second shift. The motor loads, heating, all of it—nameplate demand just went from ~48 kW to ~96 kW. [...]
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GE transformer buyer's roundup — Myth you hear on job sites: “A transformer is a transformer—as long as the kVA matches, it’ll handle generator feed just fine.” Reality: A generator’s voltage waveform is typically noisier (higher harmonic… [...]
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GE transformer buyer's roundup — Your shelter's AC unit is undersized. The transformer sits in the same enclosure, and every watt it sheds as heat must be removed by that already-marginal cooling. [...]
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GE transformer buyer's roundup — Every facility manager I talk to starts with the same assumption: buy a transformer rated for my load, and it’ll handle the load. That’s true only if the load behaves like a perfect resistor. [...]
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GE transformer buyer's roundup — I've seen too many facility managers buy a 75 kVA transformer based on the first-line price — and then watch the electric meter spin an extra $3,600 per year because they ignored no-load loss. [...]
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GE transformer buyer's roundup — You have a 75 kVA continuous load that draws 58 A at 480 V — call it 48 kW real, PF ~0.85. The budget says buy a 75 kVA transformer. [...]
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GE transformer buyer's roundup — Most facility managers assume that a transformer's KVA rating is the only number that matters for a panel that gets infrequent attention. That belief is wrong in a way that costs real dollars and downtime. [...]
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