Loss of feld protection in a synchronous generator using impedance measurement method under different loading conditions

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dc.contributor.author Kibet, Pius
dc.contributor.author Ouma, H. A.
dc.contributor.author Moises, Peter M.
dc.date.accessioned 2022-10-06T12:28:52Z
dc.date.available 2022-10-06T12:28:52Z
dc.date.issued 2022
dc.identifier.citation 2022 IEEE PES/IAS PowerAfrica en_US
dc.identifier.uri https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9905318
dc.identifier.uri http://repository.seku.ac.ke/handle/123456789/6872
dc.description DOI: 10.1109/PowerAfrica53997.2022.9905318 en_US
dc.description.abstract Loss of field (LOF) in synchronous generator (SG) occurs when the source of excitation is removed accidentally. The condition of LOF is detected by a relay, which trips the unit and prevents potential damage. Relay detects LOF using signals from voltage transformers (VTs) and current transformers (VTs) mounted at the generator terminal. This paper examines the LOF scenario and how is it affected by generator loading conditions using impedance measurement in the R-X plane. M-3425A relay was used as a testing tool where generator parameters were configured into it for computation. The computer screen connected to the relay displayed the results after running the tests. The test results were analyzed at full, medium, and low loads. Computed results showed a smaller value of impedance in the RX plane for a fully loaded generator, concluding that a lightly loaded generator is less vulnerable to LOF tripping than a heavily loaded one. en_US
dc.language.iso en en_US
dc.publisher IEEE en_US
dc.subject Loss of field (LOF) en_US
dc.subject synchronous generator (SG) en_US
dc.subject current transformer (CT) en_US
dc.subject voltage transformer en_US
dc.title Loss of feld protection in a synchronous generator using impedance measurement method under different loading conditions en_US
dc.type Article en_US


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