Keywords: transmission and distribution electrical equipment, aging mechanisms, life extension techniques, electrical contacts, insulation materials, power transformers, high-voltage bushings, circuit breakers, monitoring, diagnostics, maintenance. In our modern world, the reliable transmission and distribution of electrical power is essential for our daily lives. Behind the scenes, a complex network of electrical
Category: Transmission System
When carrying out the work of cable laying in the underground transmission line, the trench is to be dug/ prepared. Trench work should be done by following safety precautions. All pits and trench work shall comply with WorkSafe requirements, particularly the WorkSafe Code of Practice: Excavation. They may include but
The transmission lines are used to transmit the power for long-distance. There are two types of transmission lines; Overhead Transmission line Underground Transmission line Overhead transmission line uses bare conductors. These conductors placed at a height from the ground. To maintain clearance between the conductors and ground, supporting towers are
Steel lattice towers are also used in electronic and communication industries for communication of microwave signals through different types of antennas. Several antennae are fixed on the tower in different directions at different heights as per the requirement and usage. The antenna positions decide the height of the tower. Symmetrical
For optimization of transmission line towers, it is important to know various design parameters that control the design of the tower. Some of the parameters that dictate the configuration of the transmission line towers are briefly described below: TOWER HEIGHT: The height of the tower is determined by parameters such
HVDC links may be broadly classified into the following categories: Monopolar Links Bipolar Links Homopolar Links The basic configuration of a monopolar link is shown in figure. It uses one conductor, usually of negative polarity. The return path is provided by ground or water. Cost considerations often lead to the
Figure: A schematic of a bipolar HVDC system identifying main components
1) CONNECTING REMOTE GENERATION Some energy sources, such as hydro and solar power, are often located hundreds or thousands kilometers away from the load centers. HVDC will reliably deliver electricity generated from mountain tops, deserts and seas across vast distances with low losses. 2) INTERCONNECTING GRIDS Connecting AC grids is
