| 摘要 |
A load interrupter device has a plurality of load interrupter contacts enclosed respectively in axially aligned vacuum bottles, each bottle containing a fixed contact and a second contact movable axially away from the fixed contact to open position and toward the fixed contact to closed position, the bottles being positioned in a tubular housing of dielectric material by a series of stacking pedestals each formed with three equi-angularly spaced radial arms engaging the inner surface of the tubular housing. Each movable contact is normally resiliently biased toward closed position and is moved to open position by a toggle having a pair of arms substantially aligned with the contacts and held in this position by springs connected to arms on the operating shaft such that when the operating shaft is rotated by the operating arm, the above-mentioned springs break the toggle, causing the individual contacts to open. A reset spring returns the operating shaft and operating arm to ready position and causes the toggle to return the contacts to their normal closed positions. The intermediate stacking pedestals by which the bottles are centered in the housing are anchored to the housing by stabilizing studs to eliminate excessive stresses in the vacuum bottle bellows and resultant maladjustment of the contact synchronism, and the stabilizing studs project outwardly through the housing to permit individual testing of each vacuum bottle.
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