Electrical Engineering · Switchgear and Protection
In a typical sulfur hexafluoride (SF6) puffer circuit breaker, the fixed contact is designed as a:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1hollow cylinder contact with an arcing horn✓
- 2flat plate contact with thermal insulation
- 3solid cylindrical contact with no additional fittings
- 4spherical contact with an insulating shield
Correct answer
hollow cylinder contact with an arcing horn
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