Yini Imojuli yokushaja? Imiphi Imisebenzi Yokuvikela enayo?

 Imojula yokushaja iyimojula yokumisa ebaluleke kakhulu yokunikezwa kwamandla. Imisebenzi yayo yokuvikela ibonakala ezicini zokufakwayo okungaphezulu/ngaphansi kokuvikela i-voltage, okukhiphayo ngaphezu kokuvikelwa kwamandla kagesi/ngaphansi kwe-alamu ye-voltage, ukuhoxiswa kwesekethi emfushane, njll. Umsebenzi”.

1. Ithini imojuli yokushaja?

I-1) Imojula yokushaja yamukela indlela yokukhipha ukushisa ehlanganisa ukuzipholisa kanye nokupholisa umoya, futhi iqhuba ukuzipholisa ekulayisheni okulula, okuhambisana nokusebenza kwangempela kwesistimu yamandla.

2) Iyimojula yokumisa ebaluleke kakhulu yokuphakelwa kukagesi, futhi isetshenziswa kabanzi ekunikezeni amandla eziteshini ezincane ukusuka ku-35kV ukuya ku-330kV.
2. Umsebenzi wokuvikela wemojula yokushaja okungenantambo

1) Faka ngaphezulu/ngaphansi kokuvikelwa kwamandla kagesi

Imojula inomsebenzi wokufaka ngaphezulu/ngaphansi kokuvikela i-voltage. Uma i-voltage yokufaka ingaphansi kuka-313±10Vac noma ingaphezu kuka-485±10Vac, imojuli ivikelekile, akukho okukhiphayo kwe-DC, futhi inkomba yokuvikela (ephuzi) ivuliwe. Ngemuva kokuthi i-voltage ibuyele phakathi kuka-335±10Vac～460±15Vac, imojula iqala kabusha umsebenzi ngokuzenzakalelayo.

2) I-alamu yokukhishwa kwe-overvoltage/undervoltage

Imojula inomsebenzi wokuvikela i-overvoltage ephumayo kanye ne-alamu ye-undervoltage. Uma i-voltage ephumayo ingaphezu kuka-293±6Vdc, imojuli ivikelekile, akukho okukhiphayo kwe-DC, futhi inkomba yokuvikela (ephuzi) ivuliwe. Imojula ayikwazi ukululama ngokuzenzakalelayo, futhi imojuli kufanele ivalwe bese ivulwa futhi. Uma i-voltage ephumayo ingaphansi kuka-198±1Vdc, ama-alamu emojula, kukhona okukhiphayo kwe-DC, kanye nenkomba yokuvikela (ephuzi) ivuliwe. Ngemuva kokuthi i-voltage ibuyiselwe, i-alamu ye-module yokukhishwa kwe-undervoltage iyanyamalala.

3. Ukuhoxiswa kwesiyingi esifushane

Imojula inomsebenzi wokuhoxisa isiyingi esifushane. Uma okukhiphayo kwemojula kufinyezwa isikhashana, okukhiphayo akukukhulu kuno-40% wamanje olinganiselwe. Ngemuva kokuthi i-short circuit factor isusiwe, imojula ibuyisela ngokuzenzakalelayo okukhiphayo okujwayelekile.

4. Ukuvikelwa kwesigaba sokulahlekelwa

Imojuli inomsebenzi wokuvikela ukulahleka kwesigaba. Uma isigaba sokufaka singekho, amandla emojula anomkhawulo, futhi okukhiphayo kungase kulayishwe uhhafu. Lapho i-voltage ephumayo ingu-260V, ikhipha i-5A yamanje.

5. Ukuvikelwa ngaphezu kwezinga lokushisa

Lapho i-air inlet ye-module ivinjiwe noma izinga lokushisa le-ambient liphezulu kakhulu futhi izinga lokushisa ngaphakathi kwemojuli lidlula inani elibekiwe, imojula izovikelwa ekushiseni okweqile, inkomba yokuvikela (ephuzi) kuphaneli yemojuli izoba ivuliwe. , futhi imojula ngeke ibe nokuphuma kwamandla kagesi. Lapho isimo esingavamile sisusiwe futhi izinga lokushisa ngaphakathi kwemojuli libuyela kokujwayelekile, imojula izobuyela ngokuzenzakalelayo ekusebenzeni okujwayelekile.
6. Ukuvikelwa kwe-overcurrent ohlangothini oluyinhloko

Esimeni esingavamile, i-overcurrent ivela ohlangothini lokulungisa lwemojuli, futhi imojuli ivikelekile. Imojula ayikwazi ukululama ngokuzenzakalelayo, futhi imojuli kumele ivaliwe bese ivulwa futhi.