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
The metal-enclosed gas insulated switchgear inherently follows the criteria for new substation design and offers a higher reliability and flexibility than other solutions. Due to the gas enclosed design, GIS… Read more
Dec 02, 2016 | Edvard
Having selected the right site location for high voltage station, the design construction and commissioning process would broadly follow the steps shown in Figure 1. Recent trends in utilities have… Read more
Nov 11, 2016 | Edvard
The following discussion largely summarizes a paper by L. A. Koshcheev (2003) on the potential environmental impacts of HVDC overhead transmission lines in comparison to HVAC lines. In the paper,… Read more
Jun 20, 2016 | Edvard
The arc suppression coil (ASC), also known as Petersen coil, is used to compensate the capacitive earth fault currents supplied by outgoing feeders at a substation. The compensation can be… Read more
Jun 06, 2016 | Edvard
This technical analysis was carried out by ABB to show that for urban supply networks the combination of HV gas insulated switchgear – GIS (due to their compactness and flexibility) and… Read more
May 23, 2016 | Edvard
High voltage substations are points in the power system where power can be pooled from generating sources, distributed and transformed, and delivered to the load points. Substations are interconnected with… Read more
Jan 02, 2016 | Edvard
Capacitive voltage transformers (CVTs) are used on higher voltage levels, starting from 66 kV and upwards. The type of the CVT is always a single-pole one, thus the connection is… Read more
Dec 26, 2015 | Edvard
Contamination caused insulator flashovers produce frequent outages in severely contaminated areas. Lines closer to the ocean are in more danger of becoming contaminated. Several countermeasures have been proposed to improve… Read more
Oct 14, 2015 | Edvard
Flexible Alternating Current Transmission System (FACTS) simply refers to a combination of power electronics components with traditional power system components. They are intended to improve our power system reliability, power… Read more
Sep 28, 2015 | sajna soman
