سال انتشار: ۱۳۷۳

محل انتشار: نهمین کنفرانس بین المللی برق

تعداد صفحات: ۱۳

نویسنده(ها):

MILITARU CRISTIAN – INSTITUTE FOR POWER STUDIES AND DESIGNS (I.S.P.E.)- BUCHAREST ROMANIA

چکیده:

The report presents a mathematical method and the afferent computer programme which solves a determining loading case for the longitudinal stress of the suspension tower: unsymetrically ice charge. that could be a damage generating phenomenon in transmission line exploiting. The programme gives:
– the difference of tension on the adjacent towers of the loaded span. Purpose:the check of towers at the longitudinal unbalance and the slip
of conductor from the suspension clamps;
– the increase of sag at the unsymmetrical load. Purpose: thecheck of ground clearance for crossings;
– the displacements of the suspension insulator strings at the sudden discharge of load. Purpose:the check of the designed electrical
clearances;
– the jump of the conductor at the sudden ice unloading.Purpose: the check at the phase-phase and phase-ground discharge; – the released energy at the ice dicharge. Purpose:the check of the location points of the vibration dampers and of the vibration spacers.