A New Digital Down Conductor Detection Scheme for Overhead Electrical Power Distribution Systems
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Bhavesh Bhalja
Detection of down conductor faults in an overhead electrical power distribution system is extremely difficult by the conventional over current protection devices. This paper presents a new digital down conductor detection scheme which is based on the combination (AND logic) of the ratio of the negative sequence current to the positive sequence current and the value of under current during an actual down conductor condition. Real time implementation of the proposed scheme has been carried out on an existing Indian 11 kV, 3 –Phase, 50 Hz power distribution system with the help of digital over current relay. At the end, a comparative evaluation of the proposed scheme with the scheme modeled in PSCAD/EMTDC software package is also presented. Both practical and simulation results indicate the effectiveness of the proposed scheme.
©2012 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Articles in the same Issue
- Article
- Harmonics Identification with Artificial Neural Networks: Application to Active Power Filtering
- Evaluation of Hottest-Spot Temperature Models using Field Measured Transformer Data
- High Efficiency Drive for Micro-Turbine Generator Based on Current Phase and Revolving Speed Optimizations
- A New Phase Detection Method by Using Kalman Filter
- RTDS Hardware Implementation and Simulation of 3-ph 4-wire SHAF for Mitigation of Current Harmonics with p-q and Id-Iq Control Strategies using Fuzzy Logic Controller
- DC Ripple Reinjection: A Review
- A Novel Steady State Modeling and Analysis of Six-phase Self-excited Induction Generators for Renewable Energy Generation
- A New Digital Down Conductor Detection Scheme for Overhead Electrical Power Distribution Systems
