Electrical Engineering · Switchgear and Protection
In a cross-blast type air circuit breaker, how is the arc extinguished during interruption?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By compressing the arc between moving contacts
- 2By cooling the arc using water spray
- 3By allowing the arc to extinguish naturally over time
- 4By directing a high-pressure blast of air perpendicular to the arc✓
Correct answer
By directing a high-pressure blast of air perpendicular to the arc
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