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Power Transformer
Why are power transformers operated in parallel?
Asked: January 23, 2026 at 12:45 pm by Maria Fernandez
- This topic has 1 reply, 2 voices, and was last updated 2 months, 1 week ago by Ashley Hall.
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January 23, 2026 at 12:56 pm by Ashley Hall
Parallel operation allows utilities to increase total kVA capacity, share load, improve redundancy, and maintain service continuity during maintenance. For safe paralleling, transformers must match in voltage ratio, vector group, impedance, and phase displacement. Mismatches cause circulating currents, thermal stress, and uneven load distribution. Parallel banks also enhance system flexibility for seasonal and industrial load variations.
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