Dab tsi yog Internal Structure ntawm Distribution Box Thiab Distribution Cabinet?

& quot; Distribution box", tseem hu ua lub hwj chim faib txee, yog ib lo lus dav dav rau lub cev muaj zog tswj chaw. Lub thawv xa khoom yog - qhov hluav taws xob hluav taws xob qis hluav taws xob uas sib sau ua ke switchgear, ntsuas ntsuas, cov cuab yeej tiv thaiv thiab cov cuab yeej pabcuam hauv lub kaw lossis semi - kaw hlau txee lossis ntawm lub vijtsam raws li cov kev xav tau ntawm kev xaim hluav taws xob.

Lub thawv xa khoom yog ib qho loj ntawm qhov ntsuas ntawm cov ntaub ntawv. Feem ntau, nws yog - voltage hav zoov tsawg. Raws li cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv ntsuas, cov khoom siv tiv thaiv thiab cov cuab yeej pabcuam yuav tsum tau sib sau ua ke hauv ib qho kaw lossis semi - kaw cov hlau txee lossis ntawm qhov screen los tsim qhov qis - hluav taws xob faib hluav taws xob. lub thawv. Thaum lub sijhawm ua haujlwm ib txwm muaj, lub voj voog tuaj yeem hloov pauv lossis tawm los ntawm kev siv phau ntawv lossis hloov pauv tsis siv neeg.

Lub hom phiaj ntawm kev faib lub thawv:

Tsim nyog faib hluav taws xob hluav taws xob los pab txhawb kev qhib thiab kaw kev ua haujlwm ntawm lub voj voog. Nws muaj kev tiv thaiv kev nyab xeeb siab thiab tuaj yeem pom qhov kev coj ua ntawm lub Circuit Court.

Lub hauv paus ntsiab lus ntawm lub thawv xa khoom: Lub thawv xa khoom yog qhov tsawg - qhov hluav taws xob faib lub thawv uas sib sau ua ke switchgear, ntsuas cov cuab yeej, cov khoom siv tiv thaiv thiab cov cuab yeej pabcuam hauv lub kaw lossis semi - kaw hlau txee lossis ntawm lub vijtsam raws li cov khoom siv hluav taws xob. Thaum lub sijhawm ua haujlwm ib txwm muaj, lub voj voog tuaj yeem hloov pauv lossis tawm los ntawm kev siv phau ntawv lossis hloov pauv tsis siv neeg. Hauv qhov xwm txheej tsis ua haujlwm lossis kev ua haujlwm tsis zoo, lub Circuit Court tuaj yeem raug txiav tawm lossis ceeb toom los ntawm cov khoom siv tiv thaiv. Ntau yam kev ua haujlwm tuaj yeem pom los ntawm kev ntsuas ntsuas, thiab qee qhov ntsuas hluav taws xob tuaj yeem hloov kho kom sai lossis xa cov cim rau kev sib txawv ntawm lub xeev ua haujlwm.

Cov khoom siv hluav taws xob faib hluav taws xob (lub thawv) tau muab faib ua cov khoom siv hluav taws xob (cov thawv), cov khoom siv hluav taws xob faib hluav taws xob (cov thawv), thiab cov khoom ntsuas ntsuas (lub thawv), uas yog cov khoom siv kawg ntawm lub zog faib hluav taws xob. Fais fab faib txee yog ib lo lus dav dav rau lub cev muaj zog tswj chaw. Lub tshuab hluav taws xob faib hluav taws xob yog siv nyob rau hauv cov xwm txheej uas cov khoom tawg tau tawg thiab muaj ob peb lub voj voog; lub chaw tswj lub cev muaj zog yog siv nyob rau hauv cov xwm txheej uas cov load yog concentrated thiab muaj ntau yam circuits. Lawv faib cov hluav taws xob hluav taws xob ntawm ib qho hluav taws xob hluav taws xob ntawm - qib hluav taws xob faib khoom mus rau qhov ze tshaj plaws. Cov khoom siv hauv chav kawm no yuav tsum muaj kev tiv thaiv, saib xyuas thiab tswj cov khoom thauj.

Lub hwj chim txee yog hais txog kev sib xyaw ntawm cov khoom siv hluav taws xob uas muab lub zog rau kev ua haujlwm ntawm lub tshuab tag nrho, suav nrog cov contactors, zaus converters, siab - voltage txee, transformers, thiab lwm yam.

Lub zog txee muaj nuj nqi:

1. Muab lub zog rau cov khoom siv hluav taws xob (muab lub zog rau cov khoom siv);

2. Pib thiab nres cov khoom siv hluav taws xob ua haujlwm (nrog pib thiab nres khawm);

3. Tshawb xyuas kev ua haujlwm ntawm cov khoom siv (teeb tsa lub teeb liab qhia, muaj ammeter thiab voltmeter);

4. Kev tiv thaiv cov khoom siv hluav taws xob (circuit breaker) Lub txee fais fab yog lub txee xa hluav taws xob, uas yog lub txee hluav taws xob faib hluav taws xob uas muab lub zog thiab tswj cov khoom siv hluav taws xob (feem ntau hu ua motors).

10kv siab - voltage txee thiab 400v qis - voltage txee (tsis hais cov kab nkag, cov kab tawm, ntsuas ntsuas, cov khoom siv hluav taws xob, kev sib cuag, hluav taws xob hloov hluav taws xob, thiab lwm yam) tuaj yeem hu ua cov khoom faib khoom.

Cov khoom siv hauv qab 400v qis - voltage txee, uas nws lub qhov hluav taws xob sab nraud yog lub zog hluav taws xob (xws li kiv cua, lub cev muaj zog, twj tso kua mis, thiab lwm yam), yog hu ua lub hwj chim txee. Lub load yog lub teeb, keyboards, sockets thiab lwm yam khoom siv hu ua tis thawv.

Distribution box: ib lub thawv me me, uas muaj lub zog hloov hluav taws xob thiab cov cuab yeej kev nyab xeeb.

Lub thawv tswj: Ib lub thawv me me tswj, uas muaj lub zog hloov hluav taws xob / kev nyab xeeb khoom / relay (lossis contactor), uas tuaj yeem siv rau kev tswj cov khoom siv, xws li kev tswj lub cev muaj zog.

Fais fab faib txee: Nws yog ib tug loj - scale tis txee, uas muaj peev xwm muab tau ntau lub hwj chim los yog ntau channel ntawm lub hwj chim tso zis.

Control txee: Nws yog ib tug loj - scale tswj lub thawv, uas muaj peev xwm muab kev tswj cov zis nrog ntau zog los yog ntau raws, thiab kuj yuav paub ntau complex tswj.

Tswj vaj huam sib luag: tsuas yog lub hauv paus tswj txee, tag nrho cov khoom siv sab hauv raug ntsia rau ntawm lub vaj huam sib luag.

Lub thawv xa khoom feem ntau muab faib ua ob ntu

Ib qho yog qhov ua tiav ntawm cov khoom, uas yog, lub plhaub ntawm lub thawv xa khoom thiab nws cov khoom siv cuam tshuam. Qhov thib ob yog cov khoom siv hluav taws xob thiab cov khoom siv cuam tshuam, uas yog, hloov pauv huab cua thiab cov khoom siv uas nws xav tau.

Muaj cov nram qab no nyob rau hauv lub txee. 1. Circuit Court breaker Circuit Court breaker: tsis tsuas yog hloov, tab sis kuj yog lub ntsiab tseem ceeb ntawm lub hwj chim faib txee, feem ntau siv yog cua hloov, to mus hloov, dual hwj chim tsis siv neeg hloov mus.

1. Cua hloov:

A. Lub tswv yim ntawm kev hloov pauv huab cua: Cov cua hloov pauv kuj yog ib qho hluav taws xob hluav taws xob hluav taws xob, uas yog siv los ua, tawg thiab nqa cov nqi ua haujlwm tam sim no thiab luv luv - Circuit Court, overload thiab lwm yam txhaum tam sim no hauv Circuit Court, thiab tuaj yeem ua rau overload, luv luv. - Circuit Court, nyob rau hauv - voltage, thiab lwm yam ntawm cov kab thiab load. Nyob rau hauv cov ntaub ntawv no, lub Circuit Court yog sai disconnected rau txhim khu kev qha kev tiv thaiv.

Muaj ntau yam kev tsim qauv ntawm kev sib cuag zoo thiab zoo li qub thiab kev sib cuag rods ntawm Circuit Court breakers, tab sis kev txhim kho lub peev xwm tawg ntawm Circuit Court breakers yog lub hom phiaj tseem ceeb. Tam sim no, txoj cai txwv tam sim no ntawm kev txwv cov nqi siab tshaj ntawm luv luv - Circuit Court tam sim no thaum tawg los ntawm kev siv cov qauv kev sib cuag muaj qhov pom tseeb ntawm kev txhim kho lub peev xwm tawg ntawm Circuit Court breaker, thiab tau siv dav.

B. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm huab cua hloov: Lub tshuab cua tsis siv neeg hloov pauv kuj tseem hu ua qis - voltage Circuit Court breaker, uas tuaj yeem siv los txuas thiab rhuav tshem lub voj voog, thiab tseem tuaj yeem siv los tswj lub cev muaj zog uas pib tsis tshua muaj.

Nws txoj haujlwm yog sib npaug ntawm qee qhov lossis tag nrho cov haujlwm ntawm cov khoom siv hluav taws xob xws li riam hloov, overcurrent relay, voltage poob relay, thermal relay thiab leakage protector. Nws yog ib qho tseem ceeb tiv thaiv cov khoom siv hluav taws xob hauv qis - voltage tis network. Lub tshuab hluav taws xob tsis siv neeg hloov pauv muaj qhov zoo ntawm ntau yam kev tiv thaiv kev ua haujlwm (overload, luv luv Circuit Court, tiv thaiv undervoltage, thiab lwm yam), kho tus nqi, muaj peev xwm tawg siab, kev ua haujlwm yooj yim thiab kev nyab xeeb, yog li nws tau dav siv tam sim no.

2. Kev tiv thaiv hluav taws xob hloov:

A. Lub tswv yim ntawm kev tiv thaiv hluav taws xob hloov pauv: nws muaj kev ua haujlwm ntawm kev tiv thaiv kev xau, cov neeg yuav mus txawv tebchaws thaum lawv kov cov hluav taws xob nyob kom ntseeg tau tias tus kheej muaj kev nyab xeeb, uas yog lub luag haujlwm tseem ceeb ntawm cov khoom tiv thaiv to; Yog hais tias cov khoom siv hluav taws xob tsis zoo insulated thiab xau mus rau lub plhaub, cov khoom tiv thaiv to kuj tseem yuav mus. , kom tsis txhob muaj hluav taws xob poob siab los ntawm tib neeg kov. Nyob rau tib lub sijhawm, nws muaj kev ua haujlwm ntawm tam sim no ntawm - tawm, kev tiv thaiv overload thiab luv luv - tiv thaiv Circuit Court.

B. Lub hauv paus ntsiab lus ua haujlwm ntawm kev tiv thaiv kev hloov pauv:

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov dej xau tiv thaiv. LH yog xoom - ib ntus tam sim no transformer, uas muaj cov tub ntxhais hlau ua los ntawm permalloy thiab ob lub kauj coil qhov txhab ntawm cov tub ntxhais hlau annular los tsim cov khoom tshawb nrhiav. Cov kab hluav taws xob theem thiab cov kab nruab nrab dhau los ntawm lub voj voog lub voj voog kom dhau los ua cov kauj ruam tseem ceeb ntawm xoom - kev hloov pauv hloov pauv. Lub qhov hluav taws xob tom qab ntawm lub transformer yog qhov kev tiv thaiv ntau yam.

C. Lub luag haujlwm ntawm kev tiv thaiv kev hloov pauv:

1. Thaum cov dej xau lossis qhov ua txhaum hauv av tshwm sim hauv cov khoom siv hluav taws xob lossis cov kab, lub zog hluav taws xob tuaj yeem raug txiav tawm ua ntej tib neeg kov nws.

2. Thaum tib neeg lub cev kov cov khoom siv hluav taws xob, lub zog hluav taws xob tuaj yeem txiav tawm tsis pub dhau 011s, yog li txo qhov kev puas tsuaj ntawm tam sim no rau tib neeg lub cev.

3. Nws tuaj yeem tiv thaiv kev sib tsoo hluav taws los ntawm kev xau.

4. Dual fais fab tsis siv neeg hloov pauv hloov:

Lub tswv yim ntawm ob lub zog tsis siv neeg hloov pauv hloov pauv: ob lub zog tsis siv neeg hloov pauv hloov pauv yog qhov hloov pauv tsis siv neeg rau ob lub zog. Tom qab thawj txoj kev ua tsis tiav, lub zog dual lub zog tsis siv neeg hloov pauv hloov pauv hloov mus rau txoj kev thib ob kom muab lub zog rau lub nra. Yog tias txoj kev thib ob ua tsis tiav, lub zog hluav taws xob dual Lub tshuab hluav taws xob tsis siv neeg hloov pauv hloov mus rau thawj channel los muab lub zog rau lub nra. Haum rau UPS - UPS, UPS - generator, UPS - mains, mains - mains thiab lwm yam tsis muaj kev cuam tshuam lub zog hloov pauv ntawm ob - txoj kev siv hluav taws xob.