Study on overhead transmission line on-line monitoring technology

A Study on the Condition Monitoring of Transmission Line by On-line Circuit Parameter Measurement

An on-line condition monitoring method for transmission line is proposed using electrical circuit theory and IT technology in this paper. It is reasonable that the circuit parameters such as resistance (R), inductance (L), conductance (g) and capacitance (C) of a transmission line expose the electrical conditions and physical state of the line. Those parameters can be calculated from the linear...

Seismic imaging of transmission overhead line structure foundations

Mitigation of Magnetic Field under Double-Circuit Overhead Transmission Line

This paper studies the effect of various mitigation loop configurations namely: single horizontal mitigation loop (two conductors), two separate horizontal mitigation loops (four conductors) and single vertical mitigation loop (two conductors), on the magnetic field produced by 220 kV double-circuit overhead transmission line. Also, in this paper a further reduction in the magnetic field is ach...

Real –time Monitoring of Overhead Transmission Line and Its Risk Assessment

To avoid unnecessary accident and to insure that overhead transmission lines operate safely, on-line monitoring operation state and dynamic security evaluation are necessary. Dynamic Line Rating (DLR) system has been introduced in monitoring the real-time weather and line conditions. The conductor temperature in operation is affected by complex components. This paper analyzed the characteristic...

Study on On-line Monitoring Method for Grinding Quality

A on-line monitoring new method for grinding quality is presented based on theory analysis and test study, which collects the information of grinding quality from the AE signals produced by friction and grinding process to realize the on-line intelligent detection and prediction of grinding quality by A wavelet neural network & Fuzzy BP algorithm based network. The reliability and feasibility o...