Mine explosive-proof and intrinsically-safe type vacuum feed switch
The utility model discloses a mine explosive-proof and intrinsically-safe type vacuum feed switch. The mine explosive-proof and intrinsically-safe type vacuum feed switch comprises an explosive-proof housing, wherein the explosive-proof housing is composed of a main cavity, a door cover and a connec...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a mine explosive-proof and intrinsically-safe type vacuum feed switch. The mine explosive-proof and intrinsically-safe type vacuum feed switch comprises an explosive-proof housing, wherein the explosive-proof housing is composed of a main cavity, a door cover and a connection box; a vacuum circuit breaker and an isolation switch are arranged in the main cavity; a control unit is arranged on the door cover; the control unit comprises an intelligent comprehensive protector and an intrinsically-safe type pilot loop module; the intrinsically-safe type pilot loop module comprises an intrinsically-safe type pilot loop and a manual control loop; the normally-open contact and the normally-closed contact of the intrinsically-safe type pilot loop are controlled to act via the manual control loop; and the intrinsically-safe type pilot loop is connected with a remote-control output circuit, and intrinsically-safe type current and voltage values are led out. The mine explosive-proof and intrins |
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