Eyona njongo iphambili yokutshintsha kwe-high-voltage yodwa

1. Isetyenziselwa ukwahlula unikezelo lwamandla ukuqinisekisa ukhuseleko lokugcinwa, ukwenzela ukuba izixhobo zombane eziphantsi kogcino zinendawo ecacileyo yokuqhawula kumbane;

2. Yenza umsebenzi wokucima ukutshintsha indlela yokusebenza kwenkqubo. Ngokomzekelo, kwisiphaluka esine-double busbar operation, sebenzisa ukutshintshwa kwe-isolation ukutshintsha izixhobo okanye umgca ukusuka kwelinye iqela leebhasi ukuya kwelinye iqela leebhasi;

3. Ngaphantsi kweemeko ezithile, ingasetyenziselwa ukudibanisa kunye nokunqunyulwa kweesekethe ezincinci zangoku. Ukuba usebenzisa iswitshi yokwahlula, le misebenzi ilandelayo inokwenziwa:

1) Ukwahlula kwaye uvale i-voltage transformer kunye neesekethe zokubamba.

2) Yahlula kwaye uvale umsinga wokutshaja webhasi.

I-3) Amanqaku, ii-transformers ezingenayo imithwalo yazo i-excitation current edibeneyo ayigqithisi i-2A kunye nemigca yokulayisha i-capacitive current ayidluli i-5A.

Tulwahlulo lweswitshi yokwahlula kwamandla ombane aphezulu

1. Ngokwendawo yokufakela, ihlukaniswe ibe ziindidi ezimbini: ngaphakathi nangaphandle;

2. Ngokwenani leepali, ihlulwe ibe ziindidi ezimbini: i-unipolar kunye ne-tripolar;

3. Ngokwenani leentsika ezikhuselayo, zihlulwe zibe ziintlobo ezintathu: uhlobo lwekholomu enye, uhlobo lwekholamu kabini kunye nohlobo lwekholamu ezintathu;

4. Ngokweempawu zesakhiwo, ihlulwe ibe ziintlobo ezintathu: uhlobo lwe-guillotine, uhlobo lwe-screw kunye nohlobo lwe-plug-in;

5. Ngokwemisebenzi eyahlukeneyo, ihlulwe ibe ziindidi ezimbini: kunye ne-grounding knife switch kwaye ngaphandle kokutshintsha imela;

6. Ngokwendlela yokusebenza esetyenzisiweyo, ihlulwe ibe yi: manual, umbane kunye neendlela zokusebenza ze-pneumatic.

Isenzeko esingaqhelekanga kunye nonyango lokutshintsha kwamandla ombane aphezulu wokuhlukanisa

1. Inxalenye yoqhagamshelwano yokutshintshwa kwe-isolation is overheated

Ngaphantsi kweemeko eziqhelekileyo, ukutshintshwa kwe-isolation akufanele kugqithise. Ukuba umtshini wokuzihlukanisa ufunyaniswa ushushu kakhulu ngexesha lokusebenza, kufuneka kuthathwe amanyathelo alandelayo:

1) Kwinkqubo ye-double busbar, xa elinye iqela le-disbar disconnectors lishushu, kufuneka litshintshelwe kwelinye iqela leebhasi; xa inkqubo yebhasi enye yokuqhawula ishushu, zama ukunciphisa umthwalo. Ukuba iimeko zivuma, kungcono ukukhupha iswitshi yokwahlula ingasebenzi. Ukuba umbane unokunqunyulwa, kufuneka ulungiswe ngokukhawuleza, ngaphandle koko, ukubeka iliso kufuneka kuqiniswe. Ukuba ubushushu bunzima, i-breaker circuit ehambelanayo kufuneka ikhutshwe ngokwemigaqo.

2) Xa icandelo loqhagamshelwano lomgca wokuhlukanisa umgca ligqithise kakhulu, indlela yonyango iyafana naleyo yokutshintshwa kwebhasi yodwa, kodwa ngenxa yokukhuselwa kwe-breaker circuit kwichungechunge, ukutshintshwa kwe-isolation kungaqhubeka nokusebenza, kodwa ukubeka iliso kufuneka kuqiniswe kude kube yilapho umbane ungalungiswa.

2. Ukutsalwa kakubi kunye nokuvala kakubi iswitshi yokuhlukanisa kunye nomthwalo

Umtshini wokuzihlukanisa awunawo amandla okucima i-arc, kwaye akuvumelekanga ngokungqongqo ukutsala okanye ukuvala iswitshi yokwahlula nomthwalo. Nje ukuba le nto yenzeke, kufuneka ijongwe ngolu hlobo lulandelayo:

1) Tsala umtshini wokuzihlukanisa ngempazamo

Ukuba i-blade isanda kushiya umda we-blade (i-arc ibethelwe kodwa ayiphulwanga), i-disconnector engazange ivulwe kufuneka ivalwe ngokukhawuleza ukuphepha i-arc short-circuit; ukuba i-disconnector ivuliwe, ayivumelekanga ukuvala, kwaye i-disconnector kufuneka iqinisekiswe Isikhundla esivulekileyo, unqamule isiphaluka kunye ne-breaker circuit, uze uvale umtshini wokuhlukanisa.

2) Ukuvala ngokungafanelekanga iswitshi yokwahlula

Emva kokuba i-disconnector ivalwe ngephutha ngomthwalo, ayisoze yavunyelwa ukuba ivulwe kwakhona, kwaye kufuneka ivulwe emva kokuba i-breaker circuit inqumle isiphaluka.

3. Isitshixo sokuzihlukanisa siyala ukuvula nokuvala

1) yenqaba ukuvala

Xa umtshini wokuzihlukanisa wenqaba ukuvala ngenxa yokungaphumeleli komatshini, unokuqhutyelwa ngentonga yokukhusela, okanye kwimeko yokuqinisekisa ukhuseleko lomntu, sebenzisa i-wrench ukuguqula i-shaft ejikelezayo yokutshintshwa kwe-isolation.

2) yenqaba ukuvula

Xa umtshini wokuzihlukanisa ungavulwa, ukuba umatshini wokusebenza ukhenkcezisiwe, ungawushukumisa ngobunono ukuze ufumane indawo yomqobo. Ukuba umqobo womqobo ukwinxalenye yoqhagamshelwano yokutshintsha, ayinakuvulwa ngenkani, ngaphandle koko ibhotile ye-porcelain exhasayo inokonakala.

4. I-porcelain yokutshintsha yodwa yonakele

Ukuba ukukhutshwa kwe-flashover, ukubeka iliso kufuneka kuqiniswe, kwaye ukucocwa kufuneka kwenziwe emva kokufaka isicelo sokucima umbane; ukuba ibhotile ye-porcelain exhasayo yonakele kwaye yaphukile, i-breaker circuit kufuneka isetyenziswe ukukhupha isiphaluka, kwaye i-switch isolation eyonakalisiweyo kufuneka ihoxiswe ukulungiswa.