Chii chinonzi RCD

Pasina ruzivo izvo RCD (residual ano mudziyo), kuti pave nechokwadi chokuti dzakachengeteka kushanda midziyo yemagetsi chakaoma. Kazhinji Unogona kunzwa nyaya sei basa wokuwachisa dzemagetsi ukapisa murwi kana akabata panguva oparesheni. Ndizvowo zvinoitika kana panguva imwecheteyo kubata muviri kushanda kombiyuta uye radiators. Fani iyi iriko, uye harisi atadze kushanda zvakanaka, asi kutoti chepfungwa magetsi pasina grounding.

Sezvineiwo kuwedzera magetsi kubvumira RCD.

Chii chinonzi RCD? mudziyo Iri kumhanya redunhu mudariki, iyo yakavakirwa achienzanisa dzenzvimbo kuti dzinoenderana mutoro uye kudzokera pomumbure, kuita dunhu yakazaruka apo kusaruramisira (differential ano anooneka). Kureva, kana imwe nzvimbo muchikamu waidzivirira wedzinza iri usabuda muvhu, mudziyo anoona uye de-energize mutsetse.

Funga zvinotaurwa pamusoro RCD. Mwoyo mudziyo uri transformer kuitika, anonziwo differential. Inoitwa windings matatu: chikuru (L1) uye yechipiri (L2), ukuwo, akabatanidza Pasika discontinuities uye kusatsigira waya, uye yechitatu (L3) zvakabatana chikungiso mashandiro. Zvichienderana kuurayiwa mashandiro inogona inopiwa dzakakwirira wanda ataure (RCD electromechanical mhando) kana zvemagetsi zvinoriumba, yemanyorero imwe comparator uye gudzazwi ane (E-mhando). Izvi chikungiso mashandiro ari mechanically machira kuti actuating drive simba zororo kutaura navo.

Kana mutoro zvakabatana kuti RCD kuburikidza ichitenderera L1 uye L2, munhu kuitika Rwako. Sezvo chaiye oparesheni kukosha ano nechikoro kuti mutengi wakaenzana exiting, ipapo zvavo zvachose rinobva nekubudisa vanowanika iri neutralized uye razero (the windings vari pedyo, iyezvino rinotungamirirwa oppositely). Somugumisiro, coils L3 haisi zvainoita. Mode kushanda zvikuru kuchinja panguva iyoyowo anobata muviri womunhu pasi uye zvakakanganisa kuti chikwata pasi voltage. Panyaya iyi, Pasika kondakita (L1 ichitenderera) wokuwedzera kuitika kwazvo matsva ichitenderera L2. Kutaura zvazviri, pane musiyano, nokuti vanopinda kutenderera danho kondakita ano, vachaenda pasi achishandisa munhu, kwete akadzokera RCD. The rinobva nekubudisa akapfuudza compensating coils L1 L2 aibuda chiito, ukuwo, kunotangira ari rinobva nekubudisa pave ichitenderera L3 duku ano kwakakwanira nokushanda ataure kana electronic hushande uye actuation pamusoro actuator kuti kutyora simba kutaura navo.

Munhu anoziva RCD, vanoziva maitirwo nyore cheki kwaro unongotaura. On nyaya chero RCDs kupa "Test" bhatani, nekudzvanya pamusoro paunogona kuidza functionality yacho mudziyo. Kupfuurira muchidimbu shunts mumwe windings, vachibvisa kubva wedunhu kunotangira zviripiso rinobva zvinoyerera saka mudziyo kunouya.

A mubvunzo wakanaka - sei kubatanidza RCD? The mudziyo kunge kuti kuiswa mune tandem ane otomatiki chinja, nekuti haimuoni zvine chafariz uye remagetsi zvabudiswa ukuwo, haadziviriri pamusoro zadzisa (thermal) uye mukuru-ano pfupi-vematunhu (SC). Mhosva ano vanogona kukuvadza RCD, sapamazuva kwadzinoita ino oparesheni leakage hariwanikwi, asi kuitika ukoshi ichiwedzerwa kuti kukwirira tsika. Zviya, ichi ndicho chikonzero zvakakosha kusarudza kana kutenga kudanda pamwe RCD yavose sezvavakatarirwa ano. Somuenzaniso, kana mumuchina aiendeswa 16 BSN, kuti RCD anofanira kuva asina asingasviki 25 amperes. Zviri nyore, kuti yavose sezvavakatarirwa kuitika pamusoro RCD - iri bvumidzwa rikaparadzirwa nokuda zvinoumba conductors ayo.

Zviri pachena, munguva yedu, rinobatsirawo kwete chete kunzwisisa mubvunzo, chii RCD, asi kukwanisa kushandisa nayo kumba kwako. Shure zvose, izvi chimwezve kuchengeteka vose vomumhuri.