Arc-extinguishing system for a contact switching apparatus
An arc-extinguishing system for a contact switching apparatus having a plurality pieces of grid plate for arc extinction arranged outside the contact switching apparatus so as to be substantially vertical to a movable contact, and an arc box as well as an arc cover for covering the contact switching...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | An arc-extinguishing system for a contact switching apparatus having a plurality pieces of grid plate for arc extinction arranged outside the contact switching apparatus so as to be substantially vertical to a movable contact, and an arc box as well as an arc cover for covering the contact switching apparatus as well as arc-extinguishing grid plates, in which a thin-plate rib extending in a direction of an array of the arc-extinguishing grid plates is provided on the arc cover made of resin having elasticity, and the arc-extinguishing grid plates are fixed to the thin-plate rib by being pressed against end surfaces of the arc-extinguishing grid plates through connecting of the arc box to the arc cover. |
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