Essays about: "lightning strikes"

Found 4 essays containing the words lightning strikes.

  1. 1. Estimating the Risk of Self-Initiated Upward Lightning to Onshore Wind Turbines and Towers

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Frida Thörn; Wilhelm Sjöstedt; [2020]
    Keywords : Lightning; upward lightning; self-initiated light-ning; wind turbines; modelling;

    Abstract : Field observations has shown that wind turbinesare especially exposed to lightning strikes. The probability forlightning strikes to offshore wind turbines has been analysed ina previous article. In this project the probability for upwardself-initiated lightning strikes to onshore wind turbines anda lightning protection tower was analysed. READ MORE

  3. 2. Transient Voltage Distribution in Bushing

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Md Nazmus Shakib Khan; [2020]
    Keywords : Coaxial cable; Overvoltage transient; Power transformer bushing; Skin effect; Koaxialkabel; överspänningsövergående; transformatorgenomföring; hudeffekt;

    Abstract : An electrical bushing is one of the most important elements in a power transformer. Steep front surges such as transient impulse voltage from lightning strikes is an inevitable electromagnetic transient mostly happening in power transmission and distribution system. The bushing might lead to be degraded due to such kind of surge. READ MORE

  4. 3. Spatial correlation between lightning strikes and whistler observations

    University essay from KTH/Rymd- och plasmafysik

    Author : Jonas Öster; [2008]
    Keywords : ;

    Abstract : A whistler wave is a Very Low frequency (VLF) trace that obtains its characteristics from dispersive propagation in the magnetosphere. Field-aligned ducts of enhanced plasma density ensure the propagation from one hemisphere to the other. READ MORE

  5. 4. Are trees on islands more exposed to lightning-strokes than trees at mainland?

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Susanne Ahlander; [2007]
    Keywords : lightning strikes; lightning scars; islands; pinus sylvestris; quercus robur; betula sp.;

    Abstract : All vegetation is subject to different kinds of disturbances. Before human intervention, lightning strikes were the principal natural cause of ignition in conifer dominated European forests (Gromtsev 2002; Granström 2001). READ MORE