A complete reconstruction program was started at the electrical substation of the Paks Nuclear Power Plant to assist the Hungarian high voltage network to join the European network. At the operator level a new, PC-based SCADA (Supervisory Control and Data Acquisition) system was introduced. An AI-based, intelligent advisory system was developed and embedded into the SCADA system. The first part...

In India, the electric power transmission and distribution loss is very high, about 7% in transmission and 26% in distribution. Though deployment of automated meter reading system will reduce losses, particularly in distribution, penetration of automated meter reading is low due to high costs involved. World over, the Two-Way Automatic Communications System (TWACS) is the most widely used power...

SUMMARY The paper investigates efficiency of different shielding techniques. The study was performed on the basis of 3-D substation model design where the finite-element method for calculation of magnetic fields (the EMAS software) was used and measurements were performed. The study was designed to meet the following objectives: − to obtain a useful analytical tool for evaluation of magnetic fi...

We present results from experiments where the effects of flow control at a single substation are compared to distributed flow control at multiple substations. The latter approach is made possible by equipping individual substations with some computing power and integrating them into a communications network. Software agents, who cooperate with other software agents (substations) and invoke time...

Substation protection is one of the most important schemes in power system. Rainfall, Humidity, Temperature and contaminations do not produce over voltage but are capable of lowering the flashover voltage and affect the operation of the equipment. The aim of the study was to identify the climatic factors especially the average lightning days and / or ground flash density so that substation desi...

In the construction process of smart grid, an assessment on primary equipments intelligent transformation is an urgent content in the first batch of intelligent substation pilot project. Wide investigation of intelligent substation pilot projects was conducted seriously in several regional power grids in China. An mathematical model was established to assess the substation primary equipments in...

International Electro-technical Commission (IEC) has developed a new global standard, IEC 61850 for communication systems in power substations. This standard provides interoperability among the all communication devices within the substation. This paper presents basic features of communication systems proposed by IEC 61850, such as functional hierarchy, OSI-7 layer based communication, and proc...

Power networks are among the most important infrastructures that without them, industrial, economic and social procedures will halt. Therefore, they should be planned for the most difficult conditions to provide services with minimum disruption. Power substations are of great importance to a power network, because any disruption in their components can produce extensive problems through the net...

This paper describes interconnection between technical and economical making decision. The reason of this dealing could be different: poor technical condition, change of substation (electrical network) regime, power transformer owner budget deficit and increasing of tariff on electricity. Establishing of recommended practice as well as to give general advice and guidance in economical sector, t...

Finding the reliability expression of different substation configurations can help design a distribution system with the best overall reliability. This paper presents a computerized a nd implemented algorithm, based on Disjoint Sum of Product (DSOP) algorithm. The algorithm was synthesized and applied for the first time to the determination of reliability expression of a substation to determine...