Chotsukira Mlandu Wopangidwa ndi MLM1 (DC/PV)

Kufotokozera kwa Zamalonda

Ma DC (PV) series PV-dedicated DC circuit breakers apangidwa kuti azigwiritsidwa ntchito pamagetsi akuluakulu a dzuwa, omwe amagwiritsa ntchito mphamvu ya DC yamagetsi amphamvu kuyambira 250V mpaka 1500V pa 63A-800A. Popeza ali ndi ziphaso ziwiri zovomerezeka ndi miyezo ya IEC 60947 ndi GB 14048, amaphatikiza zipinda zozimitsira arc kuti akwaniritse mphamvu ya 70kA short-circuit breakability (3P 1500V models). Ma breakers awa amapereka chitetezo chawiri kwa ma inverter: kuchedwa kwambiri kwa nthawi yayitali komanso short-circuit.

Kapangidwe kosinthika ka magetsi: Mayunitsi amodzi amathandizira kugwira ntchito kwa magetsi amitundu yonse kuyambira DC250V mpaka DC1500V (monga, mitundu ya 400A). Makina owonjezera a modular (ma shunt trip/alamu contacts) amathandizira kuyang'anira kutali. Ukadaulo wolumikizira mwachindunji wa Busbar (ma terminal a 40x8mm a mitundu ya 400A+) umachepetsa kutayika kwa impedance, pomwe mtunda wa arc wa ≤100mm umatsimikizira chitetezo m'malo okhazikika kwambiri. Ndi ma cycle ogwiritsira ntchito makina 20,000, ma breaker awa amatsimikizira kudalirika kwanthawi yayitali.

Mogwirizana ndi miyezo ya Gawo III ndi Kuyikira kwa Pollution Degree 3, zotchinga za gawo lophatikizidwa zimaletsa kufalikira kwa arc. Ma baseplate oteteza omwe angasinthidwe (mpaka 390x200mm) amawongolera kugwiritsa ntchito malo a makabati. Ovomerezeka kuti agwire ntchito kutalika kwa 2000m, njira ziwiri zolumikizira (ma waya a 16mm²-120mm² kapena mabasi) zimakwaniritsa zofunikira za fakitale ya PV yapadziko lonse lapansi.

1. Chidule

Chotsekera magetsi cha DC (PV) chapadera cha DC (PV) (chomwe chimatchedwa chotsekera magetsi) chimagwiritsidwa ntchito mu DC grid circuit yokhala ndi voltage yovomerezeka ya DC250V ~ DC1500V ndi current yogwira ntchito yovomerezeka ya 63A ~ 800A. Chotsekera magetsi chili ndi ntchito yochepetsa nthawi yayitali komanso kuteteza nthawi yomweyo. Chimagwiritsidwa ntchito kugawa mphamvu zamagetsi ndikuteteza mizere ndi zida zamagetsi ku zovuta zochulukirachulukira, short circuit ndi zina.

Chotsekera dera ichi chikutsatira miyezo iyi:

IEC 60947-1 IEC 60947-2

GB14048.1 Zida Zosinthira ndi Zowongolera Zotsika Gawo 1: Zonse

GB14048.2 Switchgear Yotsika ndi Giya Yowongolera - Gawo 2: Zophwanya Ma Circuit

2. Mikhalidwe yachizolowezi yogwirira ntchito

2.1. Kutalika kwa malo oikirako sikuyenera kupitirira 2000 m;

2.2. Kutentha kovomerezeka kwa malo ozungulira sikokwera kuposa + 50 ℃ ndipo sikotsika kuposa -5 ℃; (pogwiritsa ntchito kuchepetsa mphamvu yoposa + 40 ℃, wopanga ayenera kufunsidwa kuti amve zambiri).

2.3 Mkhalidwe wa mlengalenga: Pamene kutentha kwa mlengalenga kuli 40 ℃, chinyezi cha mlengalenga sichiyenera kupitirira 50%, ndipo chinyezi chapamwamba chimaloledwa pa kutentha kotsika, monga 90% pa 20 ℃, ndipo kuzizira pamwamba pa chinthucho chifukwa cha kusintha kwa kutentha kuyenera kuganiziridwa;

2.4 Giredi ya kuipitsidwa ndi Giredi 3;

2.5 Gulu lokhazikitsa ndi lachitatu;

2.6. Mphamvu ya maginito pamalo oikira siyenera kupitirira nthawi 5 ya mphamvu ya geomagnetic mbali iliyonse;

2.7 Mu sing'anga popanda ngozi yophulika, ndipo palibe mpweya ndi fumbi loyendetsa mpweya mu sing'anga zomwe zingawononge chitsulo ndikuwononga kutchinjiriza;

2.8 Kumene kulibe mphepo kapena chipale chofewa;

2.9 Mikhalidwe yokhazikitsa:
A) Ikhoza kukhazikitsidwa mopingasa komanso moyimirira;
B) Malo oyikapo sayenera kugwedezeka ndi kugwedezeka, ndipo sayenera kuyikidwa m'malo oyaka moto ndi ophulika.

3. Kufotokozera kwa mawonekedwe

1- Khodi ya Kampani;

2- Chotsekera ma circuit chotsekedwa ndi pulasitiki;

3-Nambala yotsatizana yopangidwa;

4- PV: PV yeniyeni; DC-dc yoperekedwa;

5- Chipolopolo cha chimango;

6- Njira yogwirira ntchito: Palibe - Ntchito yolunjika;
Z- Kugwira ntchito yozungulira chogwirira;
P- Kugwira ntchito kwa makina amagetsi

7- Nambala ya pole

8- Khodi Yolumikizira (onani tebulo ili m'munsimu kuti mudziwe zambiri);

9- Yoyesedwa pakali pano

10- Voltage yogwira ntchito

4. Magawo Aakulu Aukadaulo

Chiwonetsero cha malonda

5. Malo Olumikizira Oyendetsa Ma Conductor

Siyani Uthenga Wanu

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