HONEYWELL 51401081-200公用段電源進(jìn)線開關(guān)
HONEYWELL 51401081-200 6KV公用段電源進(jìn)線開關(guān)合閘時需啟動備用變壓器220KV斷路器先合。當(dāng)6KV開關(guān)處于檢修/試驗(yàn)狀態(tài)時,則閉鎖自動取消。
8)低壓廠用變壓器6KV/380V開關(guān)、380VPC分段開關(guān)
·低壓廠用變壓器380V開關(guān)合閘時需6KV開關(guān)先合。
.380VPC段進(jìn)線開關(guān)和分段開關(guān),三者之間必須滿足三取二的關(guān)系,即當(dāng)其中的開關(guān)有二個閉合時,第三個開關(guān)不允許合閘。由于大機(jī)組輔機(jī)電動機(jī)冗余配置且分別接于二段母線,所以當(dāng)某段母線進(jìn)線開關(guān)事故跳閘后,分段開關(guān)一般不聯(lián)動合閘,以防止事故擴(kuò)大,而通常采用手動合閘方式。
·當(dāng)380V開關(guān)處于檢修/試驗(yàn)狀態(tài)時,則閉鎖自動取消。
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