Make-before-break selector switch
AssigneeMcGraw-Edison Company
InventorsFrank John Muench, Patrick Harold Pride
Life of this patent
Estimating the term…
Abstract
A make-before-break selector switch for use in high-voltage applications allows power to a load to be switched from a first power source to a second power source such that the second connection is made before the first is broken. The selector switch includes a blade coupled to a selector switch control such that the blade may be placed in a first position to electrically couple a first power source electrical contact to a load electrical contact and in a second position to electrically couple a second power source electrical contact to the load electrical contact. T-shaped and v-shaped blade implementations are examples of configurations that may be used.
Claims20
A make-before-break selector switch for use in high-voltage applications, the switch comprising:
- a first power source electrical contact;
- a second power source electrical contact;
- a load electrical contact;
- a selector switch control mechanism;
- and
- a blade coupled to the selector switch control mechanism such that the blade is moveable between a first position that electrically couples the first power source electrical contact to the load electrical contact and in second position that electrically couples the second power source electrical contact to the load electrical contact, the blade comprising:
- a mounting point used to couple the blade to the selector switch control;
- and
- an electrical contact sized such that, when the selector switch control mechanism causes the blade to be moved from the first position to the second position in a first direction, the coupling of the first power source electrical contact to the load electrical contact is not broken until the coupling of the second power source electrical contact to the load electrical contact is made.
A make-before-break selector switch for use in high-voltage applications comprising:
- a switch casing;
- a selector switch control;
- at least three electrical contacts including a first electrical contact, a second electrical contact, and a third electrical contact;
- and
- a make-before-break selector switch component operable to electrically couple the first electrical contact to the second electrical contact when placed in a first position and operable to electrically couple the first electrical contact to the third electrical contact when placed in a second position;
- wherein the make-before-break selector switch component is moveable from the first position to the second position such that the electrical coupling between the first electrical contact and the second electrical contact is not broken before the electrical coupling between the first electrical contact and the third electrical contact is made.
Dependencies are inferred from the claim text.