The starting point for planning a switchgear installation is its single line diagram. This indicates the extent of the installation, such as the number of busbars and branches, and also… Read more
Jan 22, 2018 | Edvard
For the most part, electric power is transmitted worldwide by means of ac. However, there are certain applications where dc transmission offers distinct economic and/or performance advantages. These applications include… Read more
Dec 21, 2017 | Edvard
All the diverse ionization processes involved in producing corona discharges in the highly stressed regions near the conductors of transmission lines, as well as the creation and movement of charged… Read more
Dec 08, 2017 | Edvard
A substation engineer should have a good understanding of the electrical equipment and layout of HV power substation. It’s also important to understand relationship between protection and the other equipment… Read more
Oct 04, 2017 | Edvard
This technical article discusses two important circuit breaker classifications – by voltage level (from low to medium and high voltage) and secondly by technology (extinguishing method or medium that insulates… Read more
Sep 06, 2017 | Edvard
System intertie transformers connect extra high voltage (EHV) transmission systems with different voltages up to 800kV together with the purpose that active as well as reactive power can be exchanged… Read more
Sep 04, 2017 | Edvard
This technical article deals with the assessment of risk to personnel in the case of an abnormal situation leading to an uncontrolled release of SF6 gas into the atmosphere. Generally… Read more
Jun 28, 2017 | Edvard
Benjamin Franklin – The man who dared to fly his kite in a thunder storm! In this technical article laboratory tests and test equipment needed to assess the performance of… Read more
May 29, 2017 | Edvard
Consider a medium voltage distribution system having local generation (e.g., captive power generation) as shown in figure 1 which is also synchronized with the grid. During grid disturbance, if plant generators… Read more
Mar 29, 2017 | Edvard
The following three criteria must be considered when planning high voltage switchgear installations: Voltage levels Plant concept and configuration Dimensioning High voltage installations are primarily for power transmission, but they… Read more
Dec 28, 2016 | Edvard
