论文部分内容阅读
由于油库区域环境、用电负荷性质的特殊性,要求油库在设计、改造、扩建中必须注意以下几个问题: 1.变压器的合理选用问题 商业石油库用电负荷是间断不定的,且设备功率相差较大,不同时运行的设备多,设备利用率低。据1986年全省供电用电设备调查证实,一般二级站油泵房年设备利用率不到20％、变压器容量偏大或过大的占50％,空载损耗严重。究其原因有:计算方法不当;选用计算系数不合理;变压器容量及数量调配不合理。为此,今后在商业石油库的用电负荷计算中,应该用“需用系数法”计算。油泵机组的需用系数为0.5～0.7,低压
Due to the particularity of the regional environment and the nature of the electricity load in the depot, it is necessary to pay attention to the following problems in the design, renovation and expansion of the depot: 1. The rational selection of transformers The commercial power load of commercial depots is intermittent and the power of equipment Large difference, not the same time running more equipment, equipment utilization is low. According to a survey conducted by the province’s power supply equipment in 1986, it was confirmed that the utilization rate of annual equipment at a general second-class station oil pump room was less than 20%, that the transformer capacity was too large or too large, accounting for 50% of the total load loss. The reasons are: improper calculation method; selection of the calculation coefficient is unreasonable; the allocation of capacity and quantity of transformers unreasonable. To this end, the future calculation of the electricity load in commercial oil depots should be calculated using the “coefficient of need-to-use” method. Pump unit demand factor of 0.5 to 0.7, low pressure