Transformer Winding Fault Location via Online Electrical Parameter Analysis
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Solution Overview
Problem
Transformers often require manual operator intervention to identify fault locations, leading to inefficient fault detection and prolonged power outages due to the need for offline operations.
Innovation Solution
A computer-implemented method and system that measures electrical flow parameters in real-time to determine the location of faults within transformer windings, using algorithms to analyze voltage and current conditions, phasor values, and equivalent circuits to identify the specific winding or turn of the fault.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operator intervention is used to identify fault locations, then the process is simple and does not require complex equipment, but the fault detection efficiency is low and power outages are prolonged
Solution Approach 1:
The transformer system performs self-diagnosis by automatically measuring electrical parameters and determining fault locations without requiring manual operator intervention. The system uses built-in measurement capabilities to detect faults in windings and provides automated fault location identification, enabling the equipment to service itself.
Solution Approach 2:
The patent replaces manual mechanical inspection methods with automated electrical measurement and computational analysis. Instead of physical examination by operators, the system uses electrical parameter measurements, phasor analysis, and algorithmic processing to identify fault locations automatically.
2Reliability
If offline operations are performed to identify faults, then accurate fault location can be determined, but power outages are extended and service continuity is disrupted
Solution Approach 1:
The system performs preliminary fault detection and location identification while the transformer is still online and operational. By continuously monitoring electrical parameters and analyzing phasor data during normal operation, the system identifies faults before they require offline intervention, maintaining service continuity.
Solution Approach 2:
The fault detection system operates continuously during transformer service without requiring shutdown or offline operation. The measurement and analysis processes run continuously, ensuring that fault identification can be performed at any time while maintaining power supply and service continuity.
3Measurement precision
If detailed electrical parameter measurements and analysis are performed to locate faults precisely, then fault location accuracy is improved, but the complexity of the measurement and processing system increases
Solution Approach 1:
The fault location determination process is divided into distinct analytical stages: measuring electrical parameters, calculating phasor values, determining voltage conditions, and identifying fault locations. This segmentation allows complex measurements to be broken down into manageable computational steps, improving precision while organizing system complexity.
Solution Approach 2:
The system uses phasor values as an intermediary representation between raw electrical parameter measurements and final fault location determination. By converting measurements into phasor domain and analyzing voltage conditions through this intermediate representation, the system achieves precise fault location with structured processing.
Data Source
AI summary
There is provided systems, apparatus, and methods for locating a fault in a plurality of windings of a transformer. In one embodiment, the apparatus may include: a measurement device configured to measure electrical flow parameters of the transformer when the transformer is in an online mode; and a fault location determination unit configured to determine electrical flow parameters of the windings from the measured electrical flow parameters of the transformer, wherein the fault location determination unit is configured to process the determined electrical flow parameters of the windings to determine the location of the fault in the windings.