High-voltage switches with arc preventing or extinguishing devic – Arc preventing or extinguishing devices – Auxiliary shunt
Patent
1994-05-10
1996-01-09
Scott, J. R.
High-voltage switches with arc preventing or extinguishing devic
Arc preventing or extinguishing devices
Auxiliary shunt
200 48KB, 200 48R, 218 14, 218 20, H01H 3312, H01H 938, H01H 3100
Patent
active
054830303
ABSTRACT:
A group operated switching apparatus for overhead electric power lines has a box-like elongated housing which mounts on a pole and supports three disconnect switches. Three operating shafts are journalled on the housing and are operatively connected to the disconnect switches so that axial rotation of the operating shafts alternately opens and closes the disconnect switches. An upright control shaft extends through the housing. A transverse rod assembly is enclosed within the housing and defines a mechanical connection between the control shaft and the operating shafts so that axial rotation of the control shaft causes axial rotation of the operating shafts. Each disconnect switch includes a jaw terminal having dual function backup springs and auxiliary contacts for minimizing effects of arcing during opening and closing of the switch.
REFERENCES:
patent: Re30784 (1981-10-01), Bridges
patent: 3205330 (1965-09-01), Bridges
patent: 4013852 (1977-03-01), Roberts et al.
patent: 4095061 (1978-06-01), Bridges
patent: 4184059 (1980-01-01), Graham et al.
patent: 4654540 (1987-03-01), Bridges
patent: 5091616 (1992-02-01), Ramos et al.
"S & C Omni-Rupter.RTM. Switches Outdoor Distribution (14.4 kv and 25 kv)", S & C Electric Company Descriptive Bulletin 765-30 (May 21, 1990).
"Chance Type S Switch Your Choice of Switches", A. B. Chance Co. Bulletin 14-9002 (1990).
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