- Patent Title: Ungrounded control of low energy analog (LEA) voltage measurements
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Application No.: US15937364Application Date: 2018-03-27
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Publication No.: US10649009B2Publication Date: 2020-05-12
- Inventor: Blair S. Kerr
- Applicant: G & W ELECTRIC COMPANY
- Applicant Address: US IL Bolingbrook
- Assignee: G & W Electric Company
- Current Assignee: G & W Electric Company
- Current Assignee Address: US IL Bolingbrook
- Agency: Michael Best & Friedrich LLP
- Main IPC: G01R15/06
- IPC: G01R15/06 ; H02H1/00 ; G01R31/327 ; H02H3/06

Abstract:
A system and method are provided for a floating reference recloser voltage sensor that measures low energy analog voltage from a voltage divider connected to a high energy transmission line electrode. A floating reference cylindrical voltage screen is coaxially positioned between a high energy transmission line electrode and a cylindrical ground plate, and is positioned closer to the transmission line electrode. The floating reference recloser voltage sensor is filled with a solid dielectric material. A voltage divider network is formed when a voltmeter of a recloser controller is connected to the high-voltage electrode and the floating reference voltage screen, and connected in parallel with another divider network capacitance. The voltmeter reads a low energy voltage drop between the high energy transmission line electrode and the floating reference voltage screen. The recloser controller and the voltmeter are both disconnected from ground.
Public/Granted literature
- US20190302149A1 UNGROUNDED CONTROL OF LOW ENERGY ANALOG (LEA) VOLTAGE MEASUREMENTS Public/Granted day:2019-10-03
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