Yakarurama kusarudza redunhu mudariki

Kazhinji, nguva yasvika kutsiva zvemagetsi wiring uye dunhu mudariki kunofanira kutsiviwa munguva kugadziriswa kana kuvakwa itsva. Kana achishanyira chitoro Electricians dzinenge nguva dzose tinoona kuti 99% of kuwanda redunhu-namapoporodzi kumusoro Namano igumburwe munyonga C. Saka, zvingaita sokuti ichi ndicho chete zvinogoneka uye zvakarurama Bhaibheri. Nyaya iyi kuna kuongororwazve rimwe zvinokosha zvechadenga redunhu-mudariki - igumburwe munyonga.

The igumburwe makakombama mudunhu-namapoporodzi ine zvikamu zviviri:

• triggering zadzisa kudzivirirwa (thermal): dzakanga magetsi, mupfupi ari kure nguva;
• igumburwe pamusoro pfupi nematunhu (remagetsi kusunungurwa) kana magetsi akapfuudza yakatarwa pfungwa kudzivirirwa rwendo nguva ipfupi 10 milliseconds.

For pfupi-redunhu dzenzvimbo pamusoro 20 nguva yavose sezvavakatarirwa ano, nguva-iyezvino unhu (kure makakombama) regai kupa zvakakwana nemazvo kuratidza.

Waipedza huru pfupi-redunhu dzenzvimbo kunoratidzwa ano muganhu makakombama (pakaitika kuitika uye simba). The zvachose nguva amubvise kunogona anenge akaenzana kashanu kukosha reshiyo (I2t) / (I) 2.

Pakuongorora selectivity pakati maviri redunhu-namapoporodzi

By superimposing redunhu mudariki munyonga kuti munyonga nechokumusoro kwerwizi redunhu mudariki anogona kuongorora kana mubatanidzwa uyu mano zvokusarudza pakuparwa zadzisa (selectivity kuti tsika dzose ano, kusvikira setpoint mukuru remagetsi chinja). ongororo kwakadaro musoro apo mumwe maviri redunhu namapoporodzi ane chinjika yakatarwa pfungwa; nokuti Namano kugara zviruva, mashoko aya anogona kuwanikwa zvakananga tafura selectivity. Kuedza selectivity kuti pfupi-redunhu zvakafanira kuenzanisa simba zvechadenga mano maviri.

Muenzaniso: maererano igumburwe munyonga ari mufananidzo, dunhu mudariki iC60 Schneider Electric Acti 9 (munyonga C, iyo yavose sezvavakatarirwa kwazvino 20 A) disables kuitika 100 A (kureva 5x yavose sezvavakatarirwa pari In) kuti:
• zvinenge 2 masekonzi;
• vaifanira mumasekonzi 7.

Time iyezvino unhu

Kusarudza nguva ano unhu anofanira ouschestvlyatsya maererano mhando anodzivirira gadziriro sezvo kuchengetedza magetsi acho zvinodiwa nguva dzose dzakasiyana. Nezvenyaya iyi, iri midziyo yose vari 6 makakombama zvakasiyana.

munyonga B

Decoupling: 3 5 In (yavose sezvavakatarirwa iyezvino) IEC 60898
Mwari akaronga zvikurukuru kudzivirirwa emagetsi uye umo hapana yepamusoro inrush iyezvino

munyonga C

Decoupling: 5 kusvika 10 (yavose sezvavakatarirwa iyezvino) IEC 60898
Mwari akaronga kuti kudzivirira wiring munyaya vakawanda chinangwa

Munyonga D uye K

Decoupling: 10 kusvika 14 (yavose sezvavakatarirwa iyezvino) IEC 60947,2
Mwari akaronga kuti kudzivirira nematunhu rurefu pokutangira kuitika, uye kudzivirira imennoo transformers uye Motors.

munyonga Z

Decoupling: kubva 2.4 kusvika 3,6 In (yavose sezvavakatarirwa iyezvino) IEC 60898
Akagadzirirwa zvikurukuru kuti kudzivirira zvemagetsi michina.

munyonga MA

Decoupling: 12 (yavose sezvavakatarirwa iyezvino) IEC 60898
Yakagadzirirwa kudzivirira chete triggering mano sezvo pano hapana chafariz igumburwe mudziyo.

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