Sökning: "kortslutning mellan varv."
Hittade 3 uppsatser innehållade orden kortslutning mellan varv..
1. Condition monitoring of induction machines using a signal injection technique
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Condition monitoring techniques can be employed to enhance reliability of electric machinery. The stator winding fault is one of the dominant causes for the failure of induction machines. In this work, the condition monitoring of an inverter-fed induction machine using high-frequency signal injection based technique is investigated. LÄS MER
2. Finite-element analysis of an induction motor with inter-turn short-circuit faults
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : Stator inter-turn short circuit (ITSC) faults are one of the common sources for induction machine failure affecting their reliable operation. In this thesis, a finite element (FE) model is developed to study the ITSC fault. The FE model is developed for a prototype induction machine that has the potential to emulate an ITSC fault in the stator. LÄS MER
3. Detection of stator interturn fault of synchronous machine by rotor current analysis : A SIMULATION APPROACH
Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)Sammanfattning : One of the major electrical faults of synchronous machines is an interturn short circuit in the stator winding, due to winding insulation failure. A synchronous machine is designed to have electrical and mechanical symmetry in the stator and rotor. LÄS MER