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由于国产RW5-35型跌落式熔断器能够直接切合长度为20公里及以下的35千伏空载线路的电容电流和5600千伏安变压器的空载励磁电流,额定断流容量大(800兆伏安),并且与DW-35型油断路器相比较,具有结构十分简单,体积小,重量轻(130:1),大大节省铜和钢材,且不需要变压器油,易于制造,性能良好等优点,因此在工矿企业35千伏中小型降压变电所设计中已经引起普遍重视和优先采用。经验证明,此种简易变电所,占地少,投资省,基建快,维护方便。若正确的选择熔断器的熔丝,就能够安全可靠地向井下一级负荷供电。
As the domestic RW5-35 drop-out fuse can directly meet the length of 20 km and below the 35 kV no-load line current capacity and 5600 kVA transformer no-load excitation current, rated breaking capacity (800 MV And compared with DW-35 type oil circuit breaker, it has the advantages of simple structure, small size, light weight (130: 1), great saving of copper and steel, no need of transformer oil, easy manufacture and good performance , So in industrial and mining 35 kV small and medium-sized step-down substation design has attracted widespread attention and priority. Experience shows that this simple substation, covering less, investment, fast infrastructure, easy maintenance. If the correct choice of fuse fuse, you can safely and reliably down to a load power supply.