Sökning: "switching overvoltage"
Hittade 2 uppsatser innehållade orden switching overvoltage.
1. High-Frequency Voltage Distribution Modelling of a Slotless PMSM from a Machine Design Perspective
Master-uppsats, KTH/ElkraftteknikSammanfattning : The introduction of inverters utilizing wide band-gap semiconductors allow for higher switching frequency and improved machine drive energy efficiency. However, inverter switching results in fast voltage surges which cause overvoltage at the stator terminals and uneven voltage distribution in the stator winding. LÄS MER
2. Electrical Surge Protection at Hydropower Plants
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för teknikvetenskaperSammanfattning : Hydropower plants contains a lot of vital electrical power technology such as generators and transformers. To prevent damage to this equipment due to overvoltage, they are often protected by surge arrester and in some cases also by surge capacitors. LÄS MER