Breakers zokuphawula. Types, iimpawu kunye breakers nenjongo

Xa kuthelekiswa olamlo beesekethe eqhelekileyo ahlaliswe nekhabhathi kwaye zenzelwe ukuba ukukhusela iintambo evela iziphaluka ezimfutshane kunye nomthwalo ngexesha ngenxa yokwanda. miyalezo iileyibheli isicelo umzimba, iqulethe iimpawu zazo eziphambili. On kubo uyakwazi ukufumana umfanekiso opheleleyo ifowuni.

Miyalezo Circuit: ubuchule nokumakishwa

Kukho ezininzi iintlobo koomatshini, umzekelo, uhlobo endala - AE20HHH.

Umzekelo, ukuba AE2044 yophawulo umatshini ziqala ngolu hlobo lulandelayo: 20 - Development, 4 - 63 A, 4 - ipali iyunithi eyodwa uhambo thermal kunye kagesi. Le fowuni luphawulwa uphawu umzimba karbolitovogo umbala omnyama.

scheme zokuphawula oluzenzekelayo mgangathweni. Injongo yalo esentloko kukuba ukuzisa kakhulu ecacileyo kubasebenzisi i parameters eziphambili ifowuni.

Zokuphawula miyalezo zifundwe umzimba ukusuka phezulu ukuya ezantsi.

1. Kumenzi okanye uphawu - Schneider, ABB, IEK, EKF.
2. inani lothotho okanye ulawulo (S200U series, inkampani SH200 ABB).
3. Ixesha-zangoku iimpawu (A, B, C) kunye ampere rating (I _nom.).
4. ombane Ikaliwe.
5. Owona mbane ixabiso ekuqhekezeni ukuba k. S.
6. Class komda okhoyo.
7. Umenzi Part, apho unako ukufumana olu hlobo umatshini kule khathalogu.

Lo mfanekiso ungezantsi ubonisa indlela ekuphawuleni amaza ABB kunye Schneider.

yokuvula pushbutton iphawulwe okanye iboniswe ngombala obomvu. Ukuba mnye kuphela, kwaye wenza ukuphehla, ngoko indawo isifotho kuthetha ukuba le sekethe ivaliwe.

Ukumakishwa kwe miyalezo wesiphaluka ngelo abavelisi kuhlanganisa QR-ikhowudi, apho lonke ulwazi malunga imodeli kubonakala. phambi lwabo uhlobo siqinisekiso ezikumgangatho.

Impembelelo engqongileyo

1. Uluhlu lobushushu njengezibonelo eziqhelekileyo na iintlobo ukusuka -5 ° C ukuya +40 ° C. Ukusebenza ngaphaya mida luvelise indlela ekhethekileyo.
2. Avumelekile izixhobo zokusebenza kwindawo ukufuma isalamane-50% kwi-40 ° C. Kunye nokwehla avumelekile uyanda lobushushu ukufuma (ukuya kwi-90% kwi-20 ° C).

iintlobo zoomatshini

Oomashini zikhethwa ngokuxhomekeke yombane.

1. Single-kwipali oluzenzekelayo

Izixhobo ezisetyenziswa networks olunye-isigaba. Isigaba liqhagamshelene terminal ongentla kunye umthwalo - ukuya ezantsi. Ukuhlobanisa ifowuni evela kwicingo kwisigaba sikhala anqunyulwe amandla umthwalo kwiimeko ezingxamisekileyo.

2. Bipolar Machine

Ngokwemo, ifowuni i block ababini odnopolyusnikov enxulumene lever. Tshixa phakathi mechanism off yenzelwe ukuze kwisigaba ka zero off ngaphambili (ngokwemiqathango ye-æ).

3. Lo matshini pole ezintathu-

Ifowuni isetyenziswa ukucima umbane network ontlantlu-ntathu xa kuthe ingozi. -Point ezintathu ngokudibanisa odnopolyusnika 3 hlengiso ukusebenza ngaxeshanye. Kukhupho umoya kwaye thermal kwenziwa ngokwahlukeneyo kwisekethe nganye.

full Circuit: Ukucacisa

Machines aneempawu ixesha langoku ezahlukeneyo:

a) ixhomekeke nomsinga;
b) ezimeleyo ye yangoku;
c)-step ezimbini;
d) ezintathu-sigaba.

Phezu Ezenziwe oomatshini ezininzi ungabona oonobumba B, C, D. Ukuphawula benza okuchasene B, C, D kubonisa isici ibonisa ukuxhomekeka ixesha lokuphendula ye K ubudlelwane Umatshini = I / I _nom.

1. B - ukhuselo thermal iyasebenza nge 4-5 kunye kwemfuneko amaxesha 3 kwexabiso elibekiweyo, yaye umoya - in seconds 0,015. Ezi zixhobo zenzelwe imithwalo kunye namanzi aphantsi inrush, ingakumbi ukukhanyisa.
2. C - iimpawu lixhaphakileyo oomatshini ukukhusela Ufakelo zombane nokulolonga imisinga inrush.
3. D - emishini namanzi umthwalo omkhulu uqale.

Lo msebenzi yexesha langoku ubuxoki uphawu kwi kukuba kunye iindidi ezifanayo yamahlelo oomatshini B, C no-D kuya kucinywa yokusebenza kwi exceedances ezahlukeneyo ngoku.

Ezinye iintlobo zoomatshini

1. MA - ngaphandle ukukhululwa thermal. Ukuba chain olubekwe relay ngoku, kwanele ukuba ukumisela umaphuli yesekethe kuphela nokhuseleko elifutshane-wesekethe.
2. A - release ubushushu izakufunyanwa xa kunene I _nom. 1.3 amaxesha. Kulo mzekelo, ixesha kungaba 1 hr. Ukuba ixabiso ngaphaya ka-2 okanye ngaphezulu, ukukhululwa yangoku kubangelwa nge 0.05. Kwimeko yokusilela kwale ukhuseleko osebenza 20-30 kunye nokhuselo nobushushu. Umatshini nge iimpawu iyasetyenziswa ukukhusela bombane. Kukho kwakhona isicelo ukuba Z. isixhobo iimpawu

Indlela yokukhetha oluzenzekelayo

1. I _nom. - kwakuwo leyo ekhokelela ukuba kuvusa yesiKhuseli overload. Ihlelo ekhethiweyo ngokutsho avumelekile kwiingcingo ubuninzi ngoku, uze unciphise ukuba 10-15%, ngokukhetha it elivela kumqolo eqhelekileyo.
2. ashukumisa current. Udidi usuke of ungumgqithi yesekethe lukhethiwe kuxhomekeke kudidi umthwalo. Iinjongo zasendlwini, uphawu lixhaphakileyo S.
3. Selectivity - ikhetha impahla cima ikhompyutha. Oomashini ezikhethiweyo sobudala lwangoku, ukuba isixhobo kuqala wasebenza kakuhle kwicala umthwalo lowo. Okokuqala, cima ukhuselo kwiindawo apho yesekethe elifutshane okanye womnatha ogcwele kwenzeka. Ixesha ucalucalulo uyonyulwa ukuze ixesha impendulo yaba elide ukuba umatshini, nto leyo imi kufutshane umbane.
4. Inani zezibonda. Kwi ontlantlu-ntathu igalelo umatshini edibene nezibonda ezine, kwaye isigaba single - elinye okanye amabini. Ukulayitwa kunye nendlu zombane asebenzisa odnopolyusnikah. Ukuba ekhaya i kwibhoyila yombane okanye imoto ontlantlu-ntathu, oomatshini ipali ezintathu-zisetyenziswa kubo.

ezinye iinketho

Xa ezifunyenwe iimpawu umaphuli yesekethe kufuneka zikhethwe ngokungqinelana nemiqathango yokusetyenziswa kunye connectivity. umatshini ngasinye yenzelwe inani elithile kwimijikelo yokusebenza. Njengoko iswitshi umthwalo ayikhuthazwa ukuyisebenzisa. Inani koomatshini ekhethwe banyanzelekile. Qiniseka ukucwangcisa ukuvulwa, yaye emva kwakhe - on iindawo kumgca ukukhanya ngokwahlukeneyo abathengi abanamandla. Iindlela for obandayo imifuziselo ezahlukeneyo ungahluka. Ngoko ke isixhobo ekhethiweyo efanayo efakiweyo lwekhabhinethi.

isiphelo

kufuneka ukumakisha benza okuchasene beesekethe ukuze bakhethe ngokweemfuno zakho ethile. iimpawu zawo ezinxulumene ngqo kwicandelo iintambo kunye neentlobo umthwalo. Xa kwenzeka short circuit ngokuyintloko nokukhubeka izaziso umoya, ngexesha nomthwalo iyoluka - ukhuselo thermal.