Chothyola Mpweya cha EW7-2000

Kufotokozera kwa Zamalonda

EW7-2000 ndi choyatsira mpweya chomwe chimapangidwira ma netiweki ogawa a AC 50Hz, chokhala ndi ma current current kuyambira 200 mpaka 6300A komanso ma voltage ogwirira ntchito ovotera a 400V/690V. Chimagwiritsidwa ntchito makamaka kugawa mphamvu zamagetsi ndikuteteza mizere ndi zida zamagetsi ku zoopsa monga overload, under-voltage, short circuit, ndi single-phase ground failures. Chingathenso kugwira ntchito ngati solation switch. Kapangidwe kake kakugwirizana ndi miyezo ya IEC60947-2 ndi GB/T 14048.2, yokhala ndi chitetezo chosankha bwino kwambiri kuti tipewe kuzimitsa magetsi kosafunikira ndikuwonjezera kudalirika ndi chitetezo cha magetsi. Ma breaker omwe ali ndi ma 630A ndi pansi angagwiritsidwenso ntchito poyambitsa ma mota pafupipafupi.

Chotsekera ichi chili ndi mphamvu yothyoka kwambiri (mpaka 100kA), kung'anima kwa zero arc, kuvomereza kulowa kwa chingwe pamwamba ndi pansi, komanso kukula kochepa. Chili ndi chowongolera chanzeru chomwe chimapereka ntchito zambiri zoteteza kuphatikizapo kuchedwa kwa nthawi yayitali, kuchedwa kwa nthawi yochepa, chitetezo cha nthawi yomweyo, komanso choteteza cholakwika cha nthaka, chomwe chingakhazikitsidwe mu inverse-time kapena mode yeniyeni. Chowongolera (mitundu ya 3M/3H) chimayesanso ndikuwonetsa magawo monga voltage, frequency, ndi mphamvu. Mitundu yapamwamba (mitundu ya 2H/3H) imathandizira njira zolumikizirana za Modbus ndi Device-net kuti ziwunikire kutali komanso kuyang'anira mabasi ophatikizidwa. Pali ma interlock osiyanasiyana amakina ndi ma drawer locks kuti zitsimikizire chitetezo chogwira ntchito. Kugwira ntchito kwake kumatha kuchepetsedwa pamene kutentha kwa mlengalenga kukukwera.

Chotsekeracho chiyenera kuyikidwa pansi pa kutentha kozungulira kuyambira -5°C mpaka +40°C komanso pamalo okwera osapitirira mamita 2000, ndi chitetezo cha IP30/IP40 (ikayikidwa mkati mwa mpanda). Pakuyika, kuyima kwake sikuyenera kupitirira 5°. Zojambula zomwe zaperekedwa zomwe zikuwonetsa kukula kwakunja ndi miyeso yeniyeni yodulidwa ndi malo (monga, m'mimba mwake wa dzenje φ12) zomwe zimafunikira polumikizira mabasi a mabasi a mabala okhazikika a EW-2000 (200-2000A, 3-pole/4-pole), kupereka chitsogozo chomveka bwino cha makina okhazikitsa bwino komanso mawaya a mabasi mkati mwa switchgear.

Kukula kwa ntchito

Makhalidwe a malonda

Kuthamanga kwakukulu kwa kusweka, kuuluka kwa arc kulibe;

Ntchito yodzipatula yachitetezo;

Mizere yonse yolowera pamwamba ndi pansi ndi yovomerezeka.

Kakang'ono kukula;

Ntchito zozindikira ndi kuteteza mosankha zimathandiza kusankha zofunikira zosiyanasiyana.

Njira zolumikizira mawaya ndi zosiyanasiyana, kuphatikizapo mitundu yosakanikirana yopingasa ndi yowongoka, yomwe ndi yosavuta kuyiyika.

Ma controller a LCD a mtundu wa 3M ndi 3H omwe angoyambitsidwa kumene, kuwonjezera pa chiwonetsero ndi chitetezo chamakono, awonjezera ntchito zoyezera ndi kuteteza mphamvu yamagetsi, ma frequency, magawo, mphamvu, ndi zina zotero, zomwe zimapangitsa ntchito zawo kukhala zamphamvu kwambiri.

Chitetezo cha Regional Selective Interlocking (ZSI) chimachepetsa kwambiri dera lomwe lakhudzidwa ndi kuzima kwa magetsi chifukwa cha zolakwika, zomwe zimapangitsa kuti pakhale chitetezo chodalirika.

Ili ndi mitundu yosiyanasiyana ya maloko olumikizirana amakina (mtundu wa lever ndi mtundu wa chingwe chachitsulo), maloko otsegulira ma drawer, maloko olumikizirana a zitseko ndi maloko otsekedwa otetezedwa kuti ma circuit breakers atseke.

Olamulira anzeru a mtundu wa 2H ndi 3H ali ndi ntchito zolumikizirana komanso zowunikira. Amatha kugwiritsa ntchito njira za Mod bus ndi Device-net, zomwe zimathandiza kuyendetsa bwino mabasi. Amatha kukwaniritsa kuwongolera kutali, kuyeza kutali, kuyika chizindikiro kutali komanso kusintha kutali.

Chiwonetsero cha malonda

Deta Yaukadaulo & Magwiridwe Antchito

1. Kuwerengera kwa Circuit Breaker Current

2. Chotsekereza magetsi chili ndi mphamvu yotha kusweka kwa magetsi yafupiafupi, mphamvu yokhazikika yokhazikika kwa nthawi yochepa, ndipo chimapereka mphamvu yoteteza kuwala kwa arc popanda kutsekereza kwakunja kunja kwa chotsekereza magetsi chamagetsi.

Dziwani: Mphamvu zosweka zomwe zili patebulo ndi zofanana pa ma terminals onse okwera ndi otsika (osayang'ana mbali).

3. Chotsekereza magetsi chili ndi mphamvu yokwanira ya 360 W pansi pa mikhalidwe yogwiritsidwa ntchito yovoteledwa, ndipo mphamvu yake yopitilira yovoteledwa imachepa kutengera kutentha kwa malo ozungulira.

Dziwani: Chiŵerengero cha kusokonekera kwa chimango cha 2500A ndi pamwambapa ndi 0.9. Pa chimango cha 6300A, chiwerengero cha 4000A sichifuna kusokonezeka.

4. Wolamulira Wanzeru Wogwiritsa Ntchito Mphamvu Zambiri: Makhalidwe ndi Ntchito Zoteteza

Makhalidwe Oteteza Wowongolera Wopitilira Muyeso

a. Zokonda m'magulu mwanzeru & Kulekerera

Dziwani: Pamene magawo onse atatu a chitetezo atsegulidwa nthawi imodzi, makonda awo omwe alipo sayenera kusakanikirana kuti zitsimikizire kuti zinthu zikuyenda bwino.

b. Nthawi yogwirira ntchito ya ma overcurrents mkati mwa (1.05 mpaka 2.0) x Ir1 yaperekedwa mu Table 5.
Kulekerera nthawi: ± 15%.
Zindikirani: TL imasonyeza nthawi yokhazikika yoti munthu agwe pa ​1.5 x Ir1; tL imasonyeza nthawi yeniyeni yogwirira ntchito.

c. Chitetezo Chopitirira Muyeso Cha Nthawi Yaifupi
Chitetezo cha nthawi yochepa chochedwa kwambiri chimasinthasintha kukhala chogwira ntchito nthawi yeniyeni, koma chimapereka mawonekedwe a nthawi yosinthira (kutsatira Ts = 8·Ir/ts·I) pa ma multiples ≤8xIr1 pakafunika; pamwamba pa 8xIr1 imasintha yokha kukhala chogwira ntchito nthawi yeniyeni monga momwe tafotokozera mu Table 6, ndi kulekerera nthawi ±15%.

EW-2000 3P/4P In=200-2000A Kukula kokhazikika kwa chotsegula ma circuit ndi miyeso yakunja

EW7-2000 Fixed Standard Busbar Horizontal Wiring (Standard configuration) (KUMANJA)
Kulumikiza kwa Busbar Yokhazikika Yowonjezera ya EW7-2000 (Kukonzedwa Kwapadera) (KUMANJA)

EW7-2000 3P/4P Mu=200-2000A Kukula kwa chotsegulira dera chotsegulira ma drawer ndi miyeso yakunja

EW7-2000 Mtundu wa Chitseko cha Mabasi Chokhazikika Chopingasa (Kapangidwe kokhazikika) (KUMANJA)
EW7-2000 Busbar yofanana ndi chitoliro cha mawaya opingasa (Kukonzedwa Kwapadera) (KUMANJA)

Siyani Uthenga Wanu

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