Cov thawv ntim khoom siv feem ntau yog ua los ntawm ntoo lossis hlau. Cov thawv ntim hlau muaj kev tiv thaiv ntau dua, yog li lawv tau siv ntau dua.
Classification los ntawm cov yam ntxwv thiab kev siv:
(1) Tsau vaj huam sib luag switchgear, feem ntau hu ua switchboard lossis faib vaj huam sib luag. Nws yog qhib - hom switchgear nrog lub vaj huam sib luag rau kev tiv thaiv. Sab pem hauv ntej muaj kev tiv thaiv, tab sis sab nraub qaum thiab sab tseem tso cai rau kev nkag mus rau qhov chaw nyob. Nws muaj kev tiv thaiv qis thiab tsuas yog siv tau rau hauv kev lag luam thiab kev lag luam mining uas tsis tshua muaj kev xav tau rau cov khoom siv hluav taws xob txuas ntxiv thiab kev ntseeg siab, rau cov khoom siv hluav taws xob hauv nruab nrab hauv cov khoom siv hluav taws xob.
(2) Kev tiv thaiv (piv txwv li, enclosed) switchgear, yog hais txog qhov qis -voltage switchgear qhov twg txhua sab tsuas yog qhov mounting nto yog kaw. Cov khoom siv hluav taws xob xws li cov keyboards, cov cuab yeej tiv thaiv, thiab kev saib xyuas thiab tswj cov cuab yeej yog tag nrho cov ntsia tau rau hauv ib lub kaw kaw ua los ntawm cov hlau los yog cov khoom siv insulating, uas tuaj yeem ntsia tau rau ntawm phab ntsa lossis deb ntawm phab ntsa. Kev ntsuas kev rho tawm tuaj yeem siv nruab nrab ntawm txhua qhov hluav taws xob hauv lub txee, lossis cov phaj hlau hauv av lossis cov phaj insulating tuaj yeem siv rau kev sib cais. Feem ntau, lub qhov rooj yog mechanically interlocked nrog lub ntsiab hloov ua haujlwm. Kuj tseem muaj kev tiv thaiv cov ntsiav tshuaj hloov pauv (piv txwv li, tswj vaj huam sib luag), nrog rau kev tswj, ntsuas, thiab teeb liab cov khoom siv hluav taws xob txuas rau ntawm lub vaj huam sib luag. Kev tiv thaiv switchgear feem ntau yog siv los ua cov khoom siv hluav taws xob hauv kev lag luam.
(3) Drawer -hom switchgear. Hom switchgear no siv lub phaj hlau los ua lub plhaub kaw. Cov khoom siv hluav taws xob ntawm cov khoom siv hluav taws xob nkag thiab tawm tau raug teeb tsa hauv lub tub rau khoom tshem tau, tsim ib qho chaw ua haujlwm uas tuaj yeem ua tiav qee yam ntawm cov khoom siv hluav taws xob. Chav tsev ua haujlwm tau muab cais tawm ntawm lub busbar lossis cable los ntawm cov phaj hlau hauv av lossis cov phaj ua haujlwm ua los ntawm cov yas, tsim peb thaj chaw: busbar, chav ua haujlwm, thiab cable. Kuj tseem muaj kev ntsuas cais ntawm txhua chav ua haujlwm. Drawer- hom switchgear muaj kev ntseeg siab, kev nyab xeeb, thiab kev sib hloov pauv, thiab yog hom hloov pauv siab heev. Feem ntau switchgear hais txog tub rau khoom -hom switchgear. Lawv tsim nyog rau kev lag luam thiab kev lag luam mining thiab siab - cov tsev nce siab uas yuav tsum tau muaj kev ntseeg siab ntawm lub zog, ua haujlwm ua lub hauv paus tswj hwm lub zog faib chaw.
(4) Fais fab thiab teeb pom kev faib tswj lub thawv. Cov no feem ntau yog kaw thiab vertically ntsia. Qib tiv thaiv enclosure txawv nyob ntawm daim ntawv thov. Lawv tsuas yog siv los ua cov khoom siv hluav taws xob hauv cov chaw tsim khoom ntawm kev lag luam thiab kev lag luam mining.
