Lub hom phiaj tseem ceeb ntawm high-voltage isolating switch

1. Nws yog siv los cais cov khoom siv hluav taws xob los xyuas kom muaj kev ruaj ntseg ntawm kev saib xyuas, kom cov khoom siv hluav taws xob nyob rau hauv kev saib xyuas muaj qhov pom tseeb qhov cuam tshuam los ntawm cov khoom siv hluav taws xob;

2. Ua haujlwm hloov-tawm los hloov txoj haujlwm ntawm lub kaw lus. Piv txwv li, nyob rau hauv ib lub voj voog nrog ob lub busbar ua haujlwm, siv ib qho kev sib cais los hloov cov khoom siv lossis kab los ntawm ib pawg ntawm cov busbars mus rau lwm pab pawg ntawm busbars;

3. Raws li qee qhov xwm txheej, nws tuaj yeem siv los txuas thiab txiav tawm me me tam sim no circuits. Yog tias siv qhov hloov pauv cais, cov haujlwm hauv qab no tuaj yeem ua tau:

1) Faib thiab kaw qhov voltage transformer thiab ntes circuits.

2) Faib thiab kaw qhov them tam sim no ntawm lub npav.

3) Cov ntsiab lus, tsis muaj kev thauj khoom hloov pauv uas nws qhov sib xyaw ua ke tam sim no tsis tshaj 2A thiab tsis muaj cov kab hluav taws xob uas nws lub peev xwm tam sim no tsis tshaj 5A.

Tnws kev faib tawm ntawm high voltage rho tawm hloov

1. Raws li qhov chaw teeb tsa, nws tau muab faib ua ob hom: sab hauv tsev thiab sab nraum zoov;

2. Raws li tus naj npawb ntawm tus ncej, nws muab faib ua ob hom: unipolar thiab tripolar;

3. Raws li tus naj npawb ntawm cov ncej insulating, nws muab faib ua peb hom: ib kem hom, ob-kem hom thiab peb-kem hom;

4. Raws li cov yam ntxwv ntawm cov qauv, nws muab faib ua peb hom: guillotine hom, ntsia hlau hom thiab plug-in hom;

5. Raws li kev ua haujlwm sib txawv, nws tau muab faib ua ob hom: nrog kev hloov riam hauv av thiab tsis muaj riam hloov hauv av;

6. Raws li kev khiav hauj lwm mechanism siv, nws muab faib ua: phau ntawv, hluav taws xob thiab pneumatic kev khiav hauj lwm mechanisms.

Cov tshwm sim txawv txav thiab kev kho mob ntawm high voltage cais hloov

1. Qhov kev sib cuag ntawm qhov kev rho tawm yog overheated

Nyob rau hauv ib txwm muaj xwm txheej, qhov hloov pauv yuav tsum tsis txhob overheated. Yog tias qhov hloov pauv tau pom tias muaj cua sov thaum ua haujlwm, cov kev ntsuas hauv qab no yuav tsum tau ua:

1) Nyob rau hauv ob chav busbar system, thaum ib pab pawg ntawm busbar disconnectors yog rhuab, nws yuav tsum tau hloov mus rau lwm pab pawg neeg ntawm busbars; thaum ib leeg busbar system disconnector yog rhuab, sim txo cov load. Yog tias muaj kev tso cai, nws yog qhov zoo tshaj kom tshem tawm qhov kev rho tawm ntawm kev ua haujlwm. Yog tias lub zog tuaj yeem raug txiav tawm, nws yuav tsum tau kho tam sim ntawd, txwv tsis pub, kev saib xyuas yuav tsum muaj zog. Yog tias qhov kub kub hnyav heev, cov khoom siv hluav taws xob sib txuas yuav tsum raug txiav tawm raws li cov cai.

2) Thaum qhov kev sib cuag ntawm txoj kab kev sib cais yog overheated, txoj kev kho mob yog tib yam li ntawm ib lub tsheb npav cais tawm, tab sis vim muaj kev tiv thaiv ntawm lub Circuit Court breaker nyob rau hauv series, qhov kev rho tawm tuaj yeem txuas ntxiv mus, tab sis kev saib xyuas yuav tsum tau ua kom muaj zog kom txog thaum lub zog hluav taws xob tuaj yeem kho tau.

2. Mis-rub thiab mis-kaw rho tawm hloov nrog load

Kev rho tawm hloov tsis muaj qhov hluav taws xob tua hluav taws xob, thiab nws yog nruj me ntsis txwv tsis pub rub lossis kaw qhov kev rho tawm nrog kev thauj khoom. Thaum qhov tshwm sim no tshwm sim, nws yuav tsum tau ua raws li hauv qab no:

1) Rub qhov kev rho tawm los ntawm kev yuam kev

Yog hais tias cov hniav tsuas yog tawm ntawm ntug ntawm cov hniav (lub arc tau raug ntaus tab sis tsis tawg), lub disconnector uas tsis tau qhib yuav tsum raug kaw tam sim ntawd kom tsis txhob arc luv luv; Yog hais tias lub disconnector tau qhib lawm, nws tsis raug tso cai kaw, thiab lub disconnector yuav tsum tau xyuas kom meej Qhib txoj hauj lwm, disconnect lub Circuit Court nrog Circuit Court breaker, thiab ces kaw lub cais hloov.

2) Mis-kaw lub cais hloov

Tom qab lub disconnector yog yuam kev kaw nrog load, nws yuav tsis raug tso cai rov qhib dua, thiab nws yuav tsum tau qhib tom qab lub Circuit Court breaker tau txiav tawm Circuit Court.

3. Qhov kev rho tawm tsis kam qhib thiab kaw

1) tsis kam kaw

Thaum qhov kev rho tawm tsis kam kaw vim qhov tsis ua haujlwm ntawm lub tshuab, nws tuaj yeem ua haujlwm nrog cov pas nrig insulating, lossis nyob rau hauv rooj plaub ntawm kev ua kom muaj kev nyab xeeb ntawm tus kheej, siv tus ciaj ntswj los tig lub rotating ncej ntawm kev rho tawm hloov.

2) tsis kam qhib

Thaum qhov kev rho tawm tsis tuaj yeem qhib, yog tias lub tshuab ua haujlwm tau khov, koj tuaj yeem co nws maj mam mus nrhiav qhov teeb meem cuam tshuam. Yog tias qhov chaw khuam siab nyob rau hauv qhov chaw sib cuag ntawm qhov hloov, nws tsis tuaj yeem raug yuam kom qhib, txwv tsis pub lub raj mis porcelain tuaj yeem raug puas tsuaj.

4. Qhov kev rho tawm cov plooj (porcelain) puas lawm

Yog tias nws yog ib qho flashover tso tawm, kev saib xyuas yuav tsum tau ua kom muaj zog, thiab kev tu yuav tsum tau ua tom qab thov kom muaj hluav taws xob tua; Yog tias lub raj mis txhawb nqa cov plooj (porcelain) puas thiab tawg, lub Circuit Court breaker yuav tsum tau siv los txiav lub voj voog, thiab qhov kev sib cais uas puas lawm yuav tsum tau muab tshem tawm los kho.