Which risk increases when transformer oil containment systems lack sufficient capacity during a rupture?

💡 Explanation

When containment around a transformer fails post-rupture, environmental contamination occurs because the insulation oil (dielectric) spills and seeps, polluting surrounding areas. Therefore, environmental risk increases, rather than geomagnetic interference, flash point issues, or inrush current spikes, which involve unrelated mechanisms.

• Which consequence results when the voltage withstand limit of a circuit breaker in a 13.8kV distribution substation is exceeded?
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