Xov xwm

Lub switchboard, panelboard, thiabswitchgearyog cov khoom siv rau kev tiv thaiv overcurrent ntawm hluav taws xob Circuit Court. Kab lus no qhia txog qhov sib txawv tseem ceeb ntawm peb hom kev siv hluav taws xob no.

Panelboard yog dab tsi?

Lub vaj huam sib luag yog cov khoom siv hluav taws xob hluav taws xob uas faib cov hluav taws xob hluav taws xob pub rau hauv cov khoom siv hluav taws xob thaum muab kev tiv thaiv fuse lossis hluav taws xob hluav taws xob rau txhua qhov hluav taws xob hauv ib qho chaw kaw. Nws muaj ib lub vaj huam sib luag los yog ib pawg ntawm cov phab ntsa-mounted panels. Lub hom phiaj ntawm lub vaj huam sib luag yog faib lub zog rau hauv cov kab sib txawv. Lawv zoo ib yam li cov keyboards, tab sis cov qauv yog qhov tseem ceeb uas ua rau lawv sib nrug.

Dab tsi ua rau panels txawv yog tias lawv ib txwm mounted rau ntawm phab ntsa. Tib txoj kev uas yuav nkag mus rau panelboards yog los ntawm pem hauv ntej.Lub amperage ntawm panels yog ntau qis dua switchboard thiab switchgear, 1200 Amp max. Panelboards yog siv rau voltages mus txog 600 V. Tawm ntawm peb lub tshuab hluav taws xob, cov panels yog qhov pheej yig tshaj thiab qhov me me.

Kev siv ntawm Panelboards

Panelboards feem ntau pom nyob rau hauv ib qho chaw nyob lossis chaw lag luam me uas qhov kev thov hluav taws xob tag nrho tsis yog qhov tshwj xeeb. Cov kev siv ntawm cov panels yog:

• Cov tsev nyob, cov tsev lag luam, thiab cov chaw tsim khoom me me. Hauv tsev thiab chaw ua haujlwm, panels faib hluav taws xob rau ntau qhov chaw ntawm lub tsev los ntawm cov khoom siv loj. Lawv tuaj yeem faib hluav taws xob rau HVAC systems, teeb pom kev zoo, lossis cov khoom siv hluav taws xob loj.
• Cov chaw kho mob. Hauv cov chaw kho mob, panels yog siv rau txhua daim ntawv thov uas tau teev tseg saum toj no rau cov tsev nyob thiab kev lag luam, nrog rau cov khoom siv kho mob faib hluav taws xob.

Raws li daim ntawv thov, panelboards tuaj yeem muab faib ua ntau yam subtypes, nrog rau cov teeb pom kev zoo panels thiab fais fab faib panels. Lub ntsiab vaj huam sib luag, subpanel, thiab fusebox yog txhua hom panels.

Panelboard Cheebtsam

• Main breaker
• Circuit Court breaker
• Cov tsheb npav

Dab tsi yog aSwitchboard?

Lub switchboard yog ib qho khoom siv uas coj hluav taws xob los ntawm ib lossis ntau qhov chaw muab khoom rau ntau qhov chaw me me ntawm kev siv. Nws yog kev sib dhos ntawm ib lossis ntau lub vaj huam sib luag, txhua qhov muaj cov keyboards uas tso cai rau hluav taws xob xa rov qab. Vim nws yog ib qho kev sib dhos, lub switchboard tuaj yeem hloov kho dua tshiab ntawm txhua qhov kev pabcuam. Ib qho tseem ceeb ntawm switchboards yog tias lawv feem ntau suav nrog kev tiv thaiv overcurrent rau lawv cov khoom siv hluav taws xob thiab yog av-mounted. Cov yam ntxwv ntawm lub switchboard yog txhais tau hais tias yuav hloov lub zog.

Dab tsi sib txawv ntawm cov keyboards los ntawm lwm lub tshuab hluav taws xob tau piav qhia hauv qab no yog tias lub keyboards sawv cev rau kev sib dhos ntawm cov khoom. Qhov ntsuas hluav taws xob ntawm lub tshuab hloov hluav taws xob yog 600 V lossis tsawg dua. Switchboards tuaj yeem siv tau rau kev pabcuam los ntawm pem hauv ntej thiab nraub qaum. Switchboards ua raws li NEMA tus qauv PB-2 thiab UL tus qauv -891. Switchboards muaj cov ntsuas ntsuas uas qhia txog lub zog uas dhau los ntawm lawv, tab sis lawv tsis muaj cov khoom siv tsis siv neeg kev nyab xeeb.

Daim ntawv thov ntawmSwitchboards

Zoo li panelboards, switchboards yog siv nyob rau hauv kev lag luam thiab chaw nyob, thiab, zoo li switchgear, lawv yog siv nyob rau hauv industrial chaw. Switchboards yog siv rau rerouting fais fab loj faib khoom.

Switchboards yog kim dua li panelboards tab sis pheej yig dua li switchgear. Lub hom phiaj ntawm switchboards yog faib lub zog ntawm ntau qhov chaw. Hom switchboards muaj xws li lub hom phiaj switchboards thiab fusible switchboards.

Switchboard Cheebtsam

• Panels thiab thav duab
• Cov khoom siv tiv thaiv thiab tswj
• Hloov
• Cov tsheb npav

Dab tsi yog aSwitchgear?

Switchgear muab cov hluav taws xob sib txuas hluav taws xob, fuses, lossis cov hluav taws xob hluav taws xob los tswj, tiv thaiv, thiab cais cov khoom siv hluav taws xob.

Switchgear txawv ntawm switchboards thiab panels vim hais tias nws muaj xws li ib tug neeg. Cov khoom siv uas yog switchgear qhov chaw yog siv los tig lub hwj chim rau thiab tawm.

Switchgear yog siv los de-energize cov cuab yeej tso cai rau kev ua haujlwm kom ua tiav thiab tshem tawm qhov yuam kev hauv qab. Nws feem ntau yog siv rau hauv qhov chaw uas lub zog loj dua yuav tsum tau muab faib ua ntau yam khoom sib txawv, uas yog cov khoom lag luam ntawm cov hluav taws xob sib txawv (qis, nruab nrab, thiab siab). Switchgear yog nruab nrog cov khoom uas ua kom muaj kev nyab xeeb tsis siv neeg.

Switchgear yog qhov kim tshaj plaws thiab kim tshaj plaws piv rau panelboards thiab switchboards. Qhov ntsuas hluav taws xob ntawm lub tshuab hluav taws xob yog mus txog 38 kV, thiab qhov ntsuas tam sim no mus txog 6,000A. Switchgear ua raws li ANSI tus qauv C37.20.1, UL txuj 1558, thiab NEMA txuj SG-5.

Thaum kawg, lub switchgear tuaj yeem siv rau sab nraum zoov thiab sab hauv tsev. Hom switchgear muaj xws li low-voltage, medium-voltage, thiab high-voltage.

Daim ntawv thov ntawmSwitchgear

Switchgear feem ntau yog siv los tswj lub zog loads. Cov kev siv feem ntau ntawm switchgear muaj xws li:

• Kev siv hluav taws xob thiab hloov khoom siv, tshwj xeeb tshaj yog cov khoom siv faib khoom loj (transformers, generators, fais fab sib txuas, thiab lwm yam).
• Kev txheeb xyuas qhov ua txhaum ntawm qhov hluav taws xob hauv hluav taws xob thiab kev cuam tshuam raws sij hawm ua ntej overload
• Kev tswj cov khoom siv hauv cov chaw tsim hluav taws xob thiab cov chaw tsim hluav taws xob
• Transformer tswj hauv cov khoom siv hluav taws xob
• Kev tiv thaiv cov tsev lag luam loj thiab cov chaw khaws ntaub ntawv

Cheebtsam ntawmSwitchgear

• Draw-out breakers: siv kos-out breakers nrog switchgear tiv thaiv kev kaw hluav taws xob rau kev kho.
• Fais fab hloov Cheebtsam: Circuit Court breakers, fuses, thiab lwm yam. Cov Cheebtsam no yog npaj los ua txhaum lub hwj chim nyob rau hauv ib tug Circuit Court.
• Fais fab tswj Cheebtsam: tswj vaj huam sib luag, transformers, tiv thaiv relays. Cov khoom no yog npaj los tswj lub zog.