Maimaito da gaba-gaban hawa ta tsakiyar kasa (HSGS) a GIS
Muhimmin da na kula da wannan switches shine mafi yawan da ke cikin grounding switches a air-insulated substations da kuma non-fault-initiating grounding switches a Gas-Insulated Switchgear (GIS).
High-Speed Grounding Switches (HSGS) suna kayayyakin zama: su zaka iya gaba hanyar da ya fi sanya, tana da shiga da yake da yawa don kula da wani short-circuit, amma tana da dabi'a mai yawa da yake da yawa ko kuma enclosure. HSGS suna amfani da su don kula da abubuwa masu shiga a cikin substation, sama da transmission lines, transformer banks, da kuma main buses. A wasu GIS facilities, HSGS suna amfani da su don haifar da protective relay functions. Amma, ba ake amfani da su don kula da circuit breakers ko voltage transformers ba.
HSGS suna yanayi da suka testa su don kula da electrostatically-induced capacitive currents da electromagnetically-induced inductive currents wadanda ke faru a de-energized transmission lines wadanda ke shiga da kuma zuwa wajen energized transmission lines. Kuma su zaka iya gaba da DC trapped charges a transmission line.
HSGS suna da motor-operated mechanisms da spring-assist don in fada da inganci da kula da karamin switchblade. Su suna amfani da hanyoyin da suke amfani da su a disconnect switches don in nuna position na switch. Rasa ta bayyana HSGS ta shiga a bus.
