For overhead power grids, unexpected serious line sagging of extra-high voltage
transmission lines would easily lead to major blackouts. Different direct and indirect sag …

В современной электроэнергетической сети возрастают потери электрической
энергии. Потери связаны с повышением потребления. Существующие модели оценки …

A new approach to the non-stationary thermal processes calculation in the overhead power
lines was developed. Using the developed approach we can solve the current problem of …

This paper reflects the authors' experience in conductor thermal part (temperature) and
mechanical part (sag and clearance) estimation in real Latvian PS conditions using IEEE …

Electrical energy losses increase in modern grids. The losses are connected with an
increase in consumption. Existing models of electric power losses estimation considering …

This thesis proposes utilization of an impedance-based model in power distribution systems
equipped with phasor measurement units (PMUs) for fault location purpose. The model has …

With the growth of electricity consumption, there is an increase in electrical energy losses
and a decrease in the capacity of the lines. Also, the limited capacity affects the efficiency of …

Research in prior scientific areas carried out by Riga Technical university (RTU), in general,
and the Institute of Power Engineering as part of the University is of vital importance not only …

В работе представлен обзор существующих математических моделей, позволяющих
учитывать фактическую температуру токоведущих частей, обусловленную режимными …

In this work, a concept for overhead power line weak point analysis based on the calculation
of minimal clearance to ground is presented. Line temperature should be known before …