電力直流系統(tǒng)中絕緣故障的分析研究

摘要：在電力系統(tǒng)當(dāng)中，直流電源應(yīng)用的場(chǎng)所是越來(lái)越多，不僅有變電站和發(fā)電廠，還有通信部門(mén)、計(jì)算機(jī)房、醫(yī)院、礦井、賓館以及高層建筑等。其主要作為直流控制保護(hù)電源和合閘操作電源使用，負(fù)荷種類較多，導(dǎo)致了整個(gè)直流系統(tǒng)網(wǎng)絡(luò)分布較廣和工作環(huán)境比較惡劣的特點(diǎn)，因此較易出現(xiàn)絕緣降低的問(wèn)題。本文就直流系統(tǒng)的絕緣故障展開(kāi)分析討論，并提出一些建議。 敘詞：直流電源 直流系統(tǒng) 絕緣 Abstract：The application of DC power supply is more and more in the power system. Not only in transformer substations and power plants, but also in communications, the computer rooms, hospitals, mines, guesthouses and high-rise buildings, etc. The DC power supply, whose loads types are so many, is used as control and protection power supply and used as switchin operational power supply. So the networks distribution is extensive of the total DC system, and whose working condition is poor. As a result, the insulation fault is easier to come out. This text gives a discussion and an analysis on the insulation fault of DC system, and it makes some suggestions. Keyword：DC Power supply, DC System, Insulation