Understand the electrical equipment used in one's own mine

需要了解的是用電設備的類別和主電機的功率、啟動方式、啟動規律等多種因素，這里需要特別說明的是礦山的設備一般單臺電機的功率非常大，所以必須要選用比較優異的啟動方式，否則選用發電機組的投資預算將成倍增加。

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.

另一方面礦山用的大電機都有一個共同特性，就是啟動負荷大但是運行后負荷小的問題，如果核算不好或者選用的啟動方式不佳，將會浪費很多的人力物力財力等成本。所以可以綜合自身的投資預算多與設備廠家及發電機組廠家進行溝通，選定佳、適宜的方案。選定啟動方式之后核算出所有設備的啟動電流(惡劣工況時)及運行電流，終計算出需要配置多大功率的發電機組。

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.

對環境因素的考慮

Consideration of environmental factors

礦山大家都知道使用環境非常惡劣，甚至有些地方處于高海拔地區，發電機組同人類一樣，功率的承載能力是隨著海拔的升高而降低的，所以需要特別留意的是必須要將此因素納入考慮的范疇，否則會導致采購功率與實際運行功率相悖的弊端。

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.

根據適用功能進行選購

Choose according to applicable functions

對于專門從事礦山用的發電機組廠家會有一些特殊的配置，例如專門防風沙的重型過濾器、低溫啟動裝置、定期提醒機組保養的預警裝置等。礦山的發電機組多為數臺并列運行，對于發電機組出現的重大故障征兆無法用聲音或肉眼觀測(例如異響、抖動、輕微的三漏等)而如果擁有報警裝置可以有效的監測曲軸箱壓力，可以大大的避免了發動機一些重大故障的產生(如對于發電機組而言致命的拉缸、拉瓦現象)。

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).

根據實際情況對臺數的確定

Determine the number of units based on actual conditions

對于主用的礦山發電機組，必須要預留配置多一臺套的機組進行長期備用，這樣短期內看似投資會很大，但是只要是設備，終會有故障的時候，那么備多一臺備用機組從長遠看一定是非常有必要的。礦山發電機組需要對日常的易損件、易出現的故障點配件進行常規采購及庫存，這樣可以在故障突發的時候有備件進行應急。

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.