High Voltage Testing of Surge Arrester

High Voltage Testing of Surge Arrester: In modern practices, surge arrester or lightning arresters are the most reliable apparatus to protect the power system against transient voltages due to lightning…

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Selection of Surge Arresters

Selection of Surge Arresters: These are non-linear resistors in series with spark gaps which act as fast switches. A Selection of Surge Arresters or lightning arrester is shown in Fig.…

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Metal Oxide Lightning Arrester

Metal Oxide Lightning Arrester: Metal oxide lightning arrester belongs to the new generation of station metal oxide surge arresters developed by General Electric Co. in 1976. This is useful for…

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Thyrite Lightning Arrester Diagram

Thyrite Lightning Arrester Diagram: Thyrite lightning arrester is most common and is mostly used for the protection against high dangerous voltages. It operates on the fact that thyrite, a dense…

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Sphere Gap Arrester Diagram

Sphere Gap Arrester Diagram: In such a sphere gap arrester device the air gap is provided by two similar spheres—one connected to the line and another grounded. The spacing between…

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Switching Surges in Transmission Line

Switching Surges in Transmission Line: Till the time when the transmission voltages were about 220 kV and below, over-voltages due to lightning were of very high order and overvoltages generated…

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Generation of Switching Surges

Generation of Switching Surges: Nowadays in extra high voltage transmission lines and power systems, switching surges is an important factor that affects the design of insulation. All transmission lines rated…

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Surge Diverter

Surge Diverter | Lightning Arrester Types: The earthing screen and ground wires can well protect the electrical system against direct lightning strokes but they fail to provide protection against travelling…

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