Oil-immersed and high-pressure tripping switch structure

Details Oil-immersed and high-pressure tripping switch structure Oil-immersed and high-pressure tripping switch structure

2007-04-03

2007-04-03

Barrera, Ramon M. (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

C335S037000

Reexamination Certificate

active

11240399

ABSTRACT:
An oil-immersed and high-pressure tripping switch structure comprises an operational apparatus, an arc-extinguishing cylinder, and an oil-shortage automatic tripping safety device wherein a sensory device detecting a fault current will trip open to displace a spring rebound pivoting-point, permitting a main spring to simultaneously actuate the release of contact points and the rotation of an operational handle therewith so that the operational handle is rotated to recover its primary angle so as to indicate the tripped/off status of the switch, facilitating the judgment and operation of workers. In addition, via a buoyant tube combined with an oil-retaining tank, the buoyant tube in case of oil-shortage can generate a sufficient downward pressure to activate the release of a tripping device so as to ensure the safety of the present invention in operation. Furthermore, a complex arc-interruption mechanism is applied so that the arc-extinguishing cylinder can efficiently break higher fault current thereby.

REFERENCES:
patent: 4435690 (1984-03-01), Link et al.
patent: 4591816 (1986-05-01), Mikulecky et al.
patent: 4611189 (1986-09-01), Mikulecky
patent: 4617545 (1986-10-01), Link
patent: 6331685 (2001-12-01), Maldonado-Cortes

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