Invention Grant
- Patent Title: Low energy reclosing pulse test
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Application No.: US17109015Application Date: 2020-12-01
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Publication No.: US11328885B2Publication Date: 2022-05-10
- Inventor: David G Porter , Stephen E Williams , Peter J Meyer , Martin T Bishop , Thomas J Dyer , Andrew B Berman , Joseph W Milton , Lauren Abramczyk
- Applicant: S&C Electric Company
- Applicant Address: US IL Chicago
- Assignee: S&C Electric Company
- Current Assignee: S&C Electric Company
- Current Assignee Address: US IL Chicago
- Main IPC: H01H33/666
- IPC: H01H33/666 ; H01H36/00 ; G01R31/327

Abstract:
A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces symmetrical fault current. The method includes energizing a magnetic actuator to move the actuator against the bias of a spring to move a movable contact towards a fixed contact. The method also includes de-energizing the actuator when the movable contact makes contact with the fixed contact so as to allow the spring to move the movable contact away from the fixed contact so that the amount of time that the current conducts is about one fundamental frequency cycle of the current, where energizing the magnetic actuator occurs when an applied voltage on the switch assembly is at a peak of the voltage wave so that the current is symmetric.
Public/Granted literature
- US20210175033A1 LOW ENERGY RECLOSING PULSE TEST Public/Granted day:2021-06-10
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