Essays about: "Transformator lindningar"
Found 3 essays containing the words Transformator lindningar.
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1. Shielding of Transformer Stray Fields in Trains
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Generally, a transformer will produce stray magnetic fields. Aboard trains, the transformer’s stray fields can pose problems to other components inside or outside the train. Further, regulations require the magnetic field to be below certain levels in the passenger area. READ MORE
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2. Characterizing coil windings noise due to compressive fault currents : A study to determine if there is a characteristic noise from transformer windings due to fault currents
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Transformers are essential for modern power distribution system. They are efficient and enable the voltages to be transformed up for transportation of electricity and back down for consumer use. The reliability of the transformer is affected by faults and fatigue of the copper. READ MORE
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3. Optimal Demagnetization of Transformer After Winding Resistance Measurements
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : In this thesis, transformer demagnetization in connection to winding resistance tests is investigated. In transformer testing, winding resistance measurement (WRM) is an important test used to detect winding or connection faults. It is common practice to measure the resistance by injecting a DC current into the windings of a transformer. READ MORE