THE RELATIONSHIP BETWEEN RELIABILITY INDICES AND DAILY LOAD CURVE

Generally, the moment of interruption occurs stochastically. The most important task in respect of reliability is to find the relationship between interruption and its starting moment. Actually, there is a relat ionship between the moment of interruption beginning and th e daily load curve. Interesting conclusions can be drawn by observing contribution of each interruption to the reliability indices (SAIFI, SAIDI) and by comparing it to daily load curve and moment of interruption beginning. Probabi lity of interruption with more difficult consequences is hi gher within heavily loaded network than during light loa d regimes. Also, the interruptions that happen out of working hours usually have longer duration. Accordingly, it is possible to take some actions for improving reliabi lity. This paper deals with the relationship between reliabili ty indices and the daily load curve calculated on the real net work.