District heating plays a dominant role in the markets of Nordic countries. Therefore, energy efficiency district systems is great interest to stakeholders. However, it not uncommon that fail achieve expected performance due inappropriate operation buildings they supply. Night setback one control strategy has been proved be an unsuitable setting for well insulated modern terms both economic fact...

Four typical types of artificial defects are designed in conducting the decomposition experiments of SF6 gas to obtain and understand the decomposition characteristics of SF6 gas-insulated medium under different types of negative DC partial discharge (DC-PD), and use the obtained decomposition characteristics of SF6 in diagnosing the type and severity of insulation fault in DC SF6 gas-insulated...

Successful operation of entire power system depends to a considerable extent on efficient and satisfactory performance of substations. Hence substations in general can be considered as heart of overall power system. In any substation, a well designed grounding plays an important role. Since absence of safe and effective grounding system can result in mal-operation or non-operation of control an...

This study investigates the technical feasibility of retro-filling a C3F7CN/CO2 gas mixture for existing SF6-insulated accelerators. Negative DC breakdown characteristics 20% C3F7CN / 80% CO2 and SF6 varying pressure, gap distance field uniformity are analyzed experimentally using four distinctly different electrode configurations. The shows higher strength than configurations with high uniform...

An important task of the asset management process is the evaluation of the long-range investment and resource planning of the assets of the complete power system and the life cycle cost assessment of different type of substations. The calculation of the long-range investment and resource planning can be performed by using dynamic asset simulation tools, which represent the statistical behavior ...

DUKE ENERGY-CAROLINAS HAS EMBARKED ON A MAJOR INITIATIVE TO IMPROVE THE VISIBILITY AND CONTROL OF ITS DISTRIBUTION SYSTEM. Known as the Remote Operation and Access to the Distribution System (ROADS) project, this initiative will provide Duke’s power-delivery organization with remote access to intelligent electronic devices (IEDs) within distribution substations and out on the feeders they serve...