TRIPPING DEVICE

TRIPPING DEVICE

PURPOSE:To enable tripping even if a load of an operation mechanism is increased to a degree exceeding attraction force in a normal tripping position. CONSTITUTION:A tripping device is constituted in such a way that two iron cores 22 and 24 are made movable, and force applied to the second iron core...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NAKANISHI MASAMITSU
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:PURPOSE:To enable tripping even if a load of an operation mechanism is increased to a degree exceeding attraction force in a normal tripping position. CONSTITUTION:A tripping device is constituted in such a way that two iron cores 22 and 24 are made movable, and force applied to the second iron core 24 is set larger than a normal load P1, and the force is set smaller than attraction force of the iron core 22 in a tripping position, and when a load is increased to P2, the second iron core 24 is attracted to the first iron core 22, and the attraction force becomes F2 (>=P), and tripping becomes possible.