Invention Grant
- Patent Title: Electric distribution system protection
- Patent Title (中): 配电系统保护
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Application No.: US13307740Application Date: 2011-11-30
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Publication No.: US09178350B2Publication Date: 2015-11-03
- Inventor: Pan Yan , Reigh Allen Walling , Amol Rajaram Kolwalkar , Michael Lewis Reichard , Wei Ren , Swakshar Ray
- Applicant: Pan Yan , Reigh Allen Walling , Amol Rajaram Kolwalkar , Michael Lewis Reichard , Wei Ren , Swakshar Ray
- Applicant Address: US NY Niskayuna
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Niskayuna
- Agent Nitin N. Joshi
- Main IPC: G01R31/00
- IPC: G01R31/00 ; H02H7/26 ; H02H3/30 ; G01R31/08

Abstract:
A system for distributing electrical current to a plurality of loads includes a first sensor coupled to an input of a protection zone for measuring a first current entering the protection zone, wherein the protection zone includes at least a portion of an electrical distribution feeder. The system also includes a second sensor coupled to an output of the protection zone for measuring a second current exiting the protection zone, and a processor coupled to the first sensor and to the second sensor. The processor is programmed to receive measurements representative of the first current and the second current, and calculate a reactive current differential of the protection zone based on the first current and the second current. The processor is also programmed to compare the reactive current differential with a fault threshold, and generate an error notification if the reactive current differential is greater than the fault threshold.
Public/Granted literature
- US20130138366A1 ELECTRIC DISTRIBUTION SYSTEM PROTECTION Public/Granted day:2013-05-30
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