Electrical power supply network protecting method, involves computing distance between midpoint of fault current and point on origin of impedance plane, and adjusting current threshold value in accordance with formula

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent describes a method to protect electrical power supply networks by using an improved technique for detecting faults. The method measures the current at points of potential faults, compares it to a threshold, and disconnects sections if a fault is detected. The procedure includes calculating distances within the impedance plane to refine the threshold for more accurate detection.

Use CasesContent extracted from patent full text and abstract with AI.

• Protection of city or industrial electrical power grids from overload or faults
• Enhanced protection systems for substations or distribution networks
• Upgrade of existing electrical protection devices to improve fault detection
• Implementation in smart grid technologies for rapid and automated network protection

BenefitsContent extracted from patent full text and abstract with AI.

• Greater accuracy in detecting faults, leading to fewer false positives
• Increased network safety by disconnecting faulty sections quickly
• Reduces unnecessary power outages by using precise current threshold adjustments
• Can be integrated with existing infrastructure, minimizing upgrade costs

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Inventors & Applicants

Patent Abstract

The method involves measuring fault current of a faulty conductor at a location of an over current protection device and comparing the measured current with a current threshold value. An electrical power supply network is disconnected from the protection device, if the measured current is greater than the threshold value. A predetermined range of error detection is determined by determination of a point on an origin of an impedance plane. Distance between a midpoint of the fault current and the point is computed, and the current threshold value is adjusted in accordance with a formula.