Method and system for distributed ground detection
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Solution Overview
Problem
Existing ground detection methods in electrical systems are centralized, time-consuming, and disruptive, leading to potential loss of critical systems during the isolation and repair process of grounded conditions.
Innovation Solution
A distributed ground detection system using multiple ground detector devices connected via a communication network, with a controller to determine ground locations based on signal strengths, and a configuration switch to transition between voltage and ground detection modes, enabling rapid identification and isolation of grounded conditions without disrupting other systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If centralized ground detection is used, then device complexity is reduced, but detection time increases and critical systems may be disrupted
Solution Approach 1:
The patent divides the centralized ground detection system into multiple distributed ground detector devices positioned at different locations within the electrical system. Each detector independently monitors its local area, enabling parallel detection across the entire system. This segmentation reduces detection time while maintaining manageable complexity through modular deployment.
Solution Approach 2:
The patent transitions from a single-point centralized detection approach to a multi-point spatial distribution approach. By adding the spatial dimension of multiple detection locations, the system achieves comprehensive coverage simultaneously, reducing the time required to locate grounds without proportionally increasing system complexity.
2Measurement precision
If manual ground location identification is performed, then detection precision is improved, but productivity decreases due to time-consuming procedures
Solution Approach 1:
The patent replaces the mechanical manual process of opening and closing circuit breakers with an automated electronic detection system. The ground detector devices automatically identify grounded conditions and communicate location information, eliminating the need for manual breaker manipulation while maintaining precise location identification through electronic signal analysis.
Solution Approach 2:
The distributed ground detector devices autonomously perform detection and location identification without requiring manual intervention. Each device independently monitors its local circuit, automatically detects grounds, and communicates findings to the central controller, enabling the system to self-diagnose and report ground locations precisely and efficiently.
3Productivity
If distributed ground detection is implemented, then detection speed and system availability are improved, but device complexity increases
Solution Approach 1:
The patent segments the detection function into multiple independent ground detector devices distributed throughout the electrical system. Each device is relatively simple in design but collectively they provide rapid comprehensive detection. The segmentation allows parallel operation that increases detection speed while keeping individual device complexity low.
Solution Approach 2:
The ground detector devices are designed with multi-functionality, serving both as local detection units and as nodes in the distributed communication network. Each device can detect grounds locally and also participate in the overall system-wide detection, reducing the need for separate specialized components and managing overall system complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances operational uptime by quickly locating and isolating grounded conditions using distributed detectors, reducing the impact on critical systems and improving efficiency in electrical distribution systems.
Implementation Method 1
Each of the first ground detector device and the second ground detector device may include a voltage ground detection circuit configured to measure ground signal strengths
Data Source
AI summary
An ungrounded power distribution system with distributed ground detection includes an electrical circuit comprising at least a first ground detector device and a second ground detector device. Each of the first ground detector device and the second ground detector device include a voltage ground detection circuit configured to measure ground signal strengths. The system also includes a controller comprising at least one processor configured to read a first signal strength at the first ground detector device and a second signal strength at the second ground detector device. The controller is configured to determine a ground location based at least in part on the first signal strength at the first ground detector device and the second signal strength at the second ground detector device. The system further includes a communication network and a display configured to present the ground location in the ungrounded power distribution system.