Understand the electrical equipment used in one's own mine

需要了解的是用电设备的类别和主电机的功率、启动方式、启动规律等多种因素，这里需要特别说明的是矿山的设备一般单台电机的功率非常大，所以必须要选用比较优异的启动方式，否则选用发电机组的投资预算将成倍增加。

It is necessary to understand various factors such as the type of electrical equipment and the power, starting method, and starting law of the main motor. It should be noted that the power of a single motor in mining equipment is generally very high, so it is necessary to choose a relatively excellent starting method. Otherwise, the investment budget for choosing a generator set will increase exponentially.

另一方面矿山用的大电机都有一个共同特性，就是启动负荷大但是运行后负荷小的问题，如果核算不好或者选用的启动方式不佳，将会浪费很多的人力物力财力等成本。所以可以综合自身的投资预算多与设备厂家及发电机组厂家进行沟通，选定佳、适宜的方案。选定启动方式之后核算出所有设备的启动电流(恶劣工况时)及运行电流，终计算出需要配置多大功率的发电机组。

On the other hand, the large motors used in mines all have a common characteristic, which is the problem of high starting load but low load after operation. If the calculation is not good or the selected starting method is not good, it will waste a lot of manpower, material resources, financial resources and other costs. So it is possible to communicate with equipment manufacturers and generator manufacturers based on one's own investment budget and select the best and suitable solution. After selecting the starting method, calculate the starting current (under harsh working conditions) and operating current of all equipment, and finally calculate the required power of the generator set.

对环境因素的考虑

Consideration of environmental factors

矿山大家都知道使用环境非常恶劣，甚至有些地方处于高海拔地区，发电机组同人类一样，功率的承载能力是随着海拔的升高而降低的，所以需要特别留意的是必须要将此因素纳入考虑的范畴，否则会导致采购功率与实际运行功率相悖的弊端。

Everyone knows that the mining environment is very harsh, and some places are even located in high-altitude areas. Like humans, the power carrying capacity of generator sets decreases with the increase of altitude. Therefore, it is important to take this factor into consideration, otherwise it may lead to the disadvantage of purchasing power that contradicts the actual operating power.

根据适用功能进行选购

Choose according to applicable functions

对于专门从事矿山用的发电机组厂家会有一些特殊的配置，例如专门防风沙的重型过滤器、低温启动装置、定期提醒机组保养的预警装置等。矿山的发电机组多为数台并列运行，对于发电机组出现的重大故障征兆无法用声音或肉眼观测(例如异响、抖动、轻微的三漏等)而如果拥有报警装置可以有效的监测曲轴箱压力，可以大大的避免了发动机一些重大故障的产生(如对于发电机组而言致命的拉缸、拉瓦现象)。

For manufacturers specializing in mining power generation units, there may be some special configurations, such as heavy-duty filters specifically designed for wind and sand prevention, low-temperature starting devices, and warning devices for regular maintenance reminders. The generator sets in mines are mostly operated in parallel, and the signs of major faults in the generator sets cannot be observed with sound or the naked eye (such as abnormal noise, shaking, slight leakage, etc.). If an alarm device is equipped, it can effectively monitor the pressure of the crankcase, greatly avoiding the occurrence of some major engine failures (such as fatal cylinder pulling and bearing pulling phenomena for generator sets).

根据实际情况对台数的确定

Determine the number of units based on actual conditions

对于主用的矿山发电机组，必须要预留配置多一台套的机组进行长期备用，这样短期内看似投资会很大，但是只要是设备，终会有故障的时候，那么备多一台备用机组从长远看一定是非常有必要的。矿山发电机组需要对日常的易损件、易出现的故障点配件进行常规采购及库存，这样可以在故障突发的时候有备件进行应急。

For the main mining power generation unit, it is necessary to reserve an additional set of units for long-term backup. This may seem like a large investment in the short term, but as long as it is equipment, there will eventually be failures. Therefore, it is necessary to reserve an additional set of backup units in the long run. Mining power generation units require routine procurement and inventory of daily vulnerable parts and easily occurring fault point accessories, so that spare parts can be available for emergency response in case of sudden faults.