Idivayisi yokumelana ne-parallel iyisethi yedivayisi yokukhetha ebanzi yekhabhinethi efakwe ngokuhambisana nendawo emaphakathi yesistimu futhi ixhunywe ngekhoyili yokucindezela i-arc.Ukukhetha okusebenzayo nokunembile kwemigqa yamaphutha.Kuhlelo lwekhoyili yokucindezela i-arc, idivayisi yokukhetha umugqa ohlanganisiwe wokumelana nokumelana ingasetshenziswa ukuzuza ukunemba kokukhetha komugqa okungu-100%.Idivayisi yokumelana ne-parallel resistance, noma i-parallel resistance cabinet, yakhiwe yi-grounding resistors, i-high-voltage vacuum connectors, ama-transformer amanje, ukutholwa kwesignali yamanje kanye nezinhlelo zokuguqulwa, izinhlelo zokulawula ukushintsha kokumelana, nokusekela izinhlelo zokukhetha umugqa ozinikele.
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