Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-01-15
1978-08-15
Engle, Samuel W.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200153N, 200153P, H01H 3380
Patent
active
041074980
ABSTRACT:
A disconnect switch and drive mechanism therefor particularly adapted for use in gas insulated substations. The disconnect switch comprises a sealed tank having opposing ends through which electrical conductors enter the tank, and within the tank is disposed an electrically insulating gas. Also disposed within the tank are a pair of longitudinally spaced apart electrodes, and the electrical conductors are coupled to, and terminate at, the electrodes. A reciprocating switch blade is disposed within one of the conductors and is capable of being in two positions; one position in contact with both electrodes to permit the flow of electric current therebetween; and a second position spaced apart from one electrode to prohibit the flow of electric current. A drive mechanism is utilized for positioning the switch blade. The drive mechanism comprises a pair of parallel support members having a plurality of gear teeth at one arcuate end section thereof, first and second crank members pivotally coupled to the support members and having aligned openings therein, and a connecting rod extending through the aligned openings and rotatable with respect thereto. A crank gear is rotatably coupled to the first crank element and cooperates with the gear teeth of the support member, and a rod gear is fixedly secured to the connecting rod and cooperates with the crank gear, so that upon pivotal movement of the crank elements, the support member gear teeth cause the crank gear to rotate which causes a rotation of the rod gear and the connecting rod attached thereto. A drive arm fixedly secured to the connecting rod rotates with the connecting rod. The connecting rod experiences both an arcuate and a rotational movement upon pivotal movement of the crank elements, and results in a straight line movement of the distal end of the drive arm.
REFERENCES:
patent: 3064091 (1962-11-01), Turner
patent: 3562460 (1971-02-01), Koerner
patent: 3562465 (1971-02-01), Turgeon
patent: 3659065 (1972-04-01), Roidt et al.
patent: 3784771 (1974-01-01), Olsen
patent: 3794799 (1974-02-01), Spindle et al.
patent: 3806682 (1974-04-01), Mauthe et al.
patent: 3876846 (1975-04-01), Graybill
patent: 3987260 (1976-10-01), Wilson
Engle Samuel W.
Palo Ralph
Westinghouse Electric Corp.
Yatsko M. S.
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