论文部分内容阅读
我厂是生产内燃机配件的厂家,其中各种型号的汽缸套年产量约四十万只以上。缸套毛坯的生产采用工频感应炉熔炼,离心浇注,共有两台一吨半无芯工频感应炉,总容量为900千瓦,分别由两台630KVA变压器供电,用电量占全厂用电量的三分之二以上。因此,节约用电的潜力主要在此。 无芯工频感应炉是单相负载,接到三相电路里需要配备相平衡装置,才能使三相电路达到平衡。一般的相平衡法为容抗平衡法（我厂现用的也是容抗平衡法）,即用平衡电容器和平衡电抗器,与感应炉接成三相平衡电路（图1）。
I plant is the production of internal combustion engine parts manufacturers, including various types of cylinder liner annual output of about 400,000 or more. Cylinder blank production using frequency induction furnace melting, centrifugal casting, a total of two one and a half tons of coreless frequency induction furnace, a total capacity of 900 kilowatts, respectively, by the two 630KVA transformer power supply, the electricity consumption of the whole plant electricity More than two thirds of the volume. Therefore, the main potential to save electricity here. Coreless induction furnace is a single-phase load, received three-phase circuit needs to be equipped with phase balancing device, in order to balance the three-phase circuit. The general phase balance method for the capacitance balance method (our factory is also used capacitance balance method), that is, with balanced capacitors and balance reactor, induction furnace and then into a three-phase balanced circuit (Figure 1).