Transcription of Power Transformer Protection
{{id}} {{{paragraph}}}
Example: air traffic controller
Power Transformer Protection
A GO3-5005 EMarch 1988 Power Transformer ProtectionApplication GuideAuthorR NylenSenior application engineer)ABB RelaysPower Transformer protectionAGO3-5005 EPage 2 List of contents)1. INTRODUCTION2. CONDITlONS LEADING TO FAUL Insulation Aging of Overheating due to Oil contamination and Reduced cooling3. FAULT Ground faults in a solidly groundedstar-connected secondary Ground faults in a high impedancegrounded star-connectedsecondary Ground faults in a Turn-to-turn Phase-to-phase faults4. PROTECTIVE RELA Differential Differential relays for fully Differential relays for Overcurrent Protection andimpedance Time-overcurrent Under-impedance Distance Grou~d fault Low irrnpedance residualovercurrent Harmonic restraint High impedance restricted Low impedance restricted Tank Residual voltage Overexcitation Flashover and ground faultprotections for low voltage Systems without rectifiers orfrequency Systems with rectifiers a
rically insulating medium and also a cooling medium. The service reliability of an oil-immersed transformer therefore depends to a great extent on the quaiity of the oil. The oil should fulfill the l1equirements of lEG 296. The dielectric sttength of the oil is …
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: