RESEARCH OF WIND SPEED, SURROUNDING TEMPERATURE AND TOPOGRAPHIC CONDITIONS INFLUENCES ON LOADABILITY OF ELECTRIC NETS

Abstract

Air-open  electric  nets  are  always  effected   by  the  sourounding  environment  conditions. Moreover  the  influences  of  climate  and  topographical  conditions  on  electric  nets  are  very complicated.  The  analysis  of  characteristics  of  Sun  radiation  and  head  transpherence  helps to design  a  mathematical  model  to  study  the  influences  of  wind  speed,  atmospheric  temperature and topographical  conditions  on loadability  of electric  nets. The results  of research  show that in climate condition  of Vietnam  the critical  currents of wires are  lower than those  in the temperate climate regions. That  lets to adjustement  edit correct  the value of critical  electric current   in the design manual.