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在开动多台钻机施工的钻探矿区，以柴油发电机组并车驱动多台钻机（简称并机电站）较之单台柴油发电机组驱动单台钻机有较明显的经济效益，而并机电站容量设计问题直接影响着该种驱动方式的经济性。例如，一部金刚石千米钻机施工，所需功率约47千瓦（钻机30瓩，水泵13千瓦，搅拌机3千瓦，照明1千瓦），矿区开动5部钻机，并机电站容量如设计为47×5=235千瓦，显然这是一极大的浪费。因为5部钻机同时施工，并不一定都同时处于满负荷状态，因此实需动力远低于235千瓦，据我们的供电实践，
In the drilling and mining area where multiple drilling rigs are started, the use of diesel generator sets to drive multiple drilling rigs together (referred to as parallel machine stations for short) has obvious economic benefits compared to single diesel generator sets driving single drilling rigs, while the capacity of parallel-connected power stations is designed. The problem directly affects the economics of this type of drive. For example, for a diamond-kilometer drilling rig construction, the required power is about 47 kilowatts (30 rigs for drilling rigs, 13 kilowatts for pumps, 3 kilowatts for mixers and 1 kilowatt for lighting), and 5 drilling rigs are started in the mining area. The capacity of the power station is designed to be 47×5. = 235 kilowatts, obviously this is a great waste. Because the simultaneous construction of 5 drilling rigs is not always at full load at the same time, the actual demand power is much lower than 235 kilowatts. According to our power supply practice,