Yakaderera-voltage uye yepakati-voltage switchgear inoshandira nzvimbo dzakasiyana mumagetsi-kugovera sisitimu, saka vatengi havafanire kusarudza pakati pavo sekunge vari mamwe saizi kabati. Midziyo yepakati-voltage inogamuchira, inochinja uye inodzivirira simba rekugovera pamberi peiyo nhanho-pasi transformer kana paMV network node. Low-voltage midziyo inogovera simba mushure mekushandura kune yakadzika mafeeders, mota, zvivakwa, majaja kana zvimwe zvinotakura. Sarudzo chaiyo inotevera dhayagiramu-mutsara, zita uye yepamusoro-soro system voltage, nhanho yekukanganisa, pasi, huzivi hwekudzivirira, hurongwa hwekuremerwa, gadziriso yeshanduko, tambo dzekubatanidza, nharaunda uye inoshanda mwero. Mapurojekiti mazhinji anoda ese ari maviri. Basa rekutenga nderokutsanangura muganho wemagetsi egungano rega rega uye humbowo-kwete kusarudza kana LV kana MV iri "nani."
Ndeupi Musiyano Unoshanda Pakati peLV neMV Switchgear?
Low-voltage switchgear inobata masekete padivi rakadzika-voltage yehurongwa hwekugovera. Mabasa ayo anogona kusanganisira vanotambira mari, zvikamu zvemabhazi, vanobuda kunze, kudzora mota, metering nekudzivirira. Medium-voltage switchgear inoshanda padivi rekushandisa kana kugovera-voltage uye inogona kugamuchira nekugovera mafeeder, chinja ma transformer kana kuita chikamu chemhete kana radial network.
Iyo terminology inofanirwa kutevedzera kutonga kweprojekiti uye mwero. Chiratidzo chekutengesa hachina kukwana. Iyo imwe-mutsara dhizaini inofanirwa kuratidza voltage pabhazi rega rega uye mudziyo, nepo dhizaini yemidziyo ichitaura chiyero chinoshanda uye zviyero.
Tanga neiyo-Mutsara-Mutsara Dhiyagiramu uye Transformer Position
Tsvaga nzvimbo yekushandisa, MV inopinda feeder, MV switchgear, transformer, LV main assembly uye yakadzika mitoro. Kana iyo purojekiti ikagamuchira epakati voltage uye ichishandura panzvimbo, inowanzoda MV switching / dziviriro pamberi peiyo transformer uye LV kugovera mushure mayo. Nzvimbo diki inopihwa yakananga pa low voltage ingangoda iyo LV package.
Usatenga kubva kurodha list chete. Iyo SLD inofanirwa kuratidza yakajairwa uye mamwe masosi, mabhazi akabatikana, dhizaini ratings, jenareta kana renewable connections, kwazvakarerekera uye kurongeka kwepasi, mapoinzi emamita uye miganhu yekuzviparadzanisa nevamwe.
Ndeapi Variables Vanofanira Kuenzanisa Nevatengi?
| Sarudzo Variable | Low-Voltage Ongororo | Medium-Voltage Ongororo | Buyer Evidence |
| Sistimu chinzvimbo | Mushure me transformer, pedyo nemitoro | Pamberi petransformer kana paMV node | Yakabvumidzwa SLD |
| Voltage | LV bhazi uye kushandiswa kwemagetsi | Nominal uye yepamusoro MV system voltage | Utility/project data |
| Mhosva basa | Anotarisira LV pfupi-yedunhu ikozvino | MV pfupi-nguva uye peak inomira basa | Kutadza kudzidza |
| Dziviriro | Breaker/feeder coordination | Relay, CT/VT uye breaker/switch philosophy | Dzidzo yekudzivirira |
| Kurongeka kwebhazi | Vanopinda, zvikamu, vanodyisa, MCC | Radial, mhete, chikamu chebhazi uye transformer feeder | SLD uye chirongwa chekudyisa |
| Cable interface | LV saizi, yekupinda uye yekumisa nzvimbo | MV tambo mhando, kumisa uye bvunzo kuwana | Cable schedule/madhirowa |
| Environment | Kamuri, kufefetera, IP uye kuwana | Indoor / kunze, urefu, kusvibiswa uye arc-ngozi yekudzora | Data data |
| Standard | Inoshanda IEC 61439 chikamu kana mutemo weprojekiti | Inoshanda IEC 62271 chikamu kana mutemo weprojekiti | Hurongwa hwekutevedzera |
Sei Voltage uye Fault Level Ari Sarudzo Yakaparadzana?
Nominal voltage inozivisa iyo system kirasi, asi haitsanangure iyo yakazara switchgear chiyero. Vatengi vanofanirwawo kupa frequency, zvinodiwa zvekudzivirira, zvinotarisirwa zvenguva pfupi, nguva yekukanganisa uye kurongeka kwepasi. Mapurojekiti maviri panguva imwechete yemagetsi anogona kuda akasiyana michina nekuti simba retiweki uye nguva yekudzivirira-yekuchenesa inosiyana.
Usabvunze mutengesi kuti atore mhosva kubva kune transformer kVA chete. Cable impedance, parallel sources, transformer impedance uye kumusoro kunetiweki mupiro zvinogona kuchinja mhedzisiro. Shandisa chidzidzo chekukanganisa kweprojekiti kana kutaurwa zvakajeka dhizaini.
Dziviriro uye Kudzora Philosophies Inosiyana Sei?
Magungano eLV anowanzo batanidza anotambira uye anodyisa madhiraivha edunhu, kudzivirira mota, metering uye kutonga. MV masisitimu anowanzo kuda kuchengetedza relay, ikozvino uye magetsi ekushandura, kupindirana, nzendo maseketi, masaini ari kure uye kurongeka pamwe nerubatsiro kana chengetedzo yeshanduko.
Musiyano hausi wekungoti MV ine "imwe dziviriro." Imwe neimwe sisitimu inodzivirira midziyo yakasiyana uye nzvimbo dzekukanganisa. Mutengi anofanira kuburitsa mabasa ekudzivirira, CT/VT zvinodiwa, mapoinzi ekutaurirana, control voltage uye rwendo logic. Madhirowa evanopa anofanirwa kuratidza kuti mabasa iwayo anoitwa sei.
Ndeipi Iyo Project Inoda Zvese LV uye MV Switchgear?
Fekitori, hubhu yekuchaja, yekutengeserana yakaoma kana microgrid inogamuchira yepakati-voltage yekupa uye kugovera yakaderera-voltage simba kazhinji inoda cheni yakasanganiswa: MV kugamuchira / kugovera, transformer uye LV kugovera kukuru. Iwo mapakeji anogona kupihwa nebato rimwe chete kana akati wandei, asi iwo mainterface anofanirwa kuve nechando.
Makiyi ekubatanidza anosanganisira transformer tambo kana bhazi kubatana, kuchengetedza kurongeka, metering muridzi, simba rekubatsira, masaini ekudzora, pasi uye kuisa mutoro. Kutenga pasuru yega yega pasina hurongwa hwekushandisa kunogona kugadzira mapeji kunyangwe kabhiniti yega yega ichitevedzera.
Ndeupi Musiyano Uripo Pakati PeSwitchgear uye Switchboard?
Aya mazwi dzimwe nguva anoshandiswa zvakasiyana nematunhu nevagadziri. Vatengi vanofanira kudzivisa kusarudza nemavara. Tsanangura kuvakwa kwegungano, kupatsanurwa, kudzivirira-chishandiso rudzi, kuwana, kuchengetedza, mukati-arc chinodiwa pazvinoshanda, chiyero chebhazi, pfupi-yedunhu rating uye chiyero chekutonga.
Kana chirevo chichishandisa mazwi ese ari maviri, kumbira chinyorwa chetemu uye chirongwa chemidziyo. Zita rekutengesa harifanire kudarika mabasa emagetsi anoratidzwa paSLD.
Ndeapi Maitiro Anofanirwa Kuiswa Nevatengi muRFQ?
Kune yakaderera-voltage switchgear uye controlgear magungano, vatengi vanowanzo ongorora zvikamu zvinoshanda zveIEC 61439 nhevedzano. Medium-voltage simbi-yakavharirwa switchgear inowanzogadziriswa kuburikidza neyakakodzera IEC 62271 zvinodiwa. Icho chaicho chikamu, edition, kutorwa kwenzvimbo uye kugadzirisa kweprojekiti kunofanirwa kutaurwa.
Usashandise IEC 60439-1 senge yazvino referensi nekuti inoonekwa pane yekare chigadzirwa tsananguro; yakatsiviwa neIEC 61439 chimiro. Mutengesi anofanirwa kudzosera clause kana hurongwa hwekuteerera hunoratidza kutsauka. Miyero yenyika inogona kuverengerwa painoda purojekiti, asi haifanirwe kutsiva chinyararire zvinongedzo zvemutengi.
Vatengi Vanofanira Kuongorora Sei MNS Yakaderera-Voltage Switchgear?
The Dingsheng yemagetsi midziyo chikamu inosanganisira LV kugovera, switching-chiteshi uye prefabricated-substation zvigadzirwa. Kune yakaderera-voltage purojekiti, iyo MNS yakaderera-voltage switchgear musangano peji inotangisa modular dhirowa-rudzi mhuri inoitirwa yakaderera-voltage kugovera uye mota-yekudzora mabasa, ine zvigadziriso zvakasarudzwa zvakatenderedza mapurojekiti anodyisa uye zvikamu.
Peji yacho haitsananguri musangano wakakwana weprojekiti. Vatengi vanofanira kuramba vachipa voltage, bhazi razvino, chiyero chekukanganisa, anotambira uye anodyisa hurongwa, dziviriro, metering, chimiro chekuparadzanisa, tambo yekupinda, yakavharirwa, zviyero uye zvinyorwa. Iyo yakaburitswa inonongedza masisitimu ari pazasi 4000 A muganho wemhuri, kwete simbiso yekuti yega kabhineti yakataurwa ine 4000 A rating.
Yepakati-Voltage Equipment Inofanirwa Kuongororwa Sei?
Dingsheng's XGW-12 peji inotsanangura yekunze bhokisi-mhando switching-chiteshi mhuri inoshandiswa kugamuchira uye kugovera epakati-voltage simba, kusanganisira ring-network uye transformer-feeder application. Izvi zvinotsigira kunzwisisa kwedivi reMV.
Kune chaiyo MV inopihwa, simbisa yakayerwa voltage, insulation level, yakajairwa ikozvino, yenguva pfupi inomira, switching mudziyo, kuchengetedza relay, CT/VT, yemukati-arc chinodiwa, interlocks, earthing switch, kumisa tambo, yekubatsira rubatsiro, yakavharirwa uye bvunzo humbowo. Usambofa wakaendesa chiyero kubva kune imwe mhuri yeMV kuenda kune imwe.
Ndeupi Humbowo Hunofanira Kutsigira Kubvumidzwa Kwehunyanzvi?
Kumbira iyo yakatenderwa SLD, kurongeka kwese, chirongwa chekudyisa, bhazi uye mudziyo ratings, chikamu rondedzero, wiring dhayagiramu, dziviriro uye metering chirongwa, tambo-yekupinda ruzivo, gadziriro yepasi uye matrix yekuteerera. Mutengi anofanirwa kuona kuti magwaro ese anoreva kudzokororo imwechete uye mutsara wemidziyo.
Tsanangura dhizaini dhizaini, yenguva yekusimbisa, FAT uye saiti bvunzo zvinoenderana neinotonga yakatarwa. Chitupa kana katarogu haitsivi madhirowa akanangana neodha. Kutsauka kunofanirwa kuramba kwakavhurika kusvika kwagamuchirwa neinjiniya ane basa.
Ndedzipi Dzakajairwa Kusarura Zvikanganiso Zvinogadzira Ngozi?
- Kusarudza nezita remagetsi chete: mhosva yebasa uye kuchengetedzwa zvinoramba zvisina kutsanangurwa.
- Kuregeredza chinzvimbo chetransformer: MV uye LV mapakeji miganhu inova isina kujeka.
- Kushandisa "switchboard" uye "switchgear" zvakasiyana: kuvaka uye bvunzo zvinotarisirwa zvinosiyana.
- Kutora kubva kune isina kupera SLD: feeder count uye ratings inoshanduka mushure mekunge engineering yatanga.
- Kushandisa yakasakara kana isina kukwana mwero referensi: vatengesi mutengo wakasiyana verification scopes.
- Kuenzanisa mitengo yekabati: zvikamu, kuchengetedzwa, metering uye zvinyorwa hazvina kujairika.
Chii Chinofanira Kusanganisira LV/MV Switchgear RFQ?
- SLD uye system inoshanda uzivi
- Nominal/yepamusoro voltage uye frequency
- Kwakabva uye transformer data
- Bus uye feeder ratings
- Mhosva nhanho uye nguva
- Earthing system
- Dziviriro, metering uye kutaurirana
- Incomer, coupler uye feeder purogiramu
- Zvido zvechikamu
- Cable yekupinda uye kupera
- Indoor/outdoor environment
- Enclosure, kupatsanura uye arc zvinodiwa
- Miyero inoshanda uye editions
- Dhirowa, verification uye FAT
- Kuisa/kutuma muganhu
- Huwandu, kwekuenda uye chirongwa
Tumira magwaro eprojekiti kuburikidza ne Dingsheng switchgear chirongwa chekukumbira fomu uye inoda Yakasimbiswa, Kutsauka, Imwe nzira kana Mutengi Input Inodiwa kutarisana nendima yese yezvinhu.
Mibvunzo Inowanzo bvunzwa
Yepakati-voltage switchgear inogara iri kumusoro kweLV switchgear?
Mune yakajairwa pa-saiti nhanho-pasi system, hongu, asi purojekiti SLD uye utility yekubatanidza inotsanangura iyo chaiyo kurongeka.
Ko MNS cabinet inogona kutsiva yepakati-voltage switchgear here?
Kwete. MNS imhuri yegungano yakaderera-voltage uye haigone kutsiva midziyo inodiwa pane yepakati-voltage network point.
Ko bhazi repamusoro razvino rinoita LV switchgear yakakodzera MV?
Kwete. Current rating uye voltage class zvakaparadzana. Insulation, switching, dziviriro uye kuyedza zvinodiwa zvakasiyana.
Chii chinofanira kugarwa nevatengi kutanga?
Isai iyo SLD, voltage, sosi / shanduko yedata, chikanganiso nhanho, pasi, huzivi hwekudzivirira uye chirongwa chekudyisa pamberi pekupedzisira einjiniya yemidziyo.
