Understand the electrical equipment used in one's own mine

需要了解的是用電設(shè)備的類別和主電機(jī)的功率、啟動(dòng)方式、啟動(dòng)規(guī)律等多種因素，這里需要特別說(shuō)明的是礦山的設(shè)備一般單臺(tái)電機(jī)的功率非常大，所以必須要選用比較優(yōu)異的啟動(dòng)方式，否則選用發(fā)電機(jī)組的投資預(yù)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(jī)都有一個(gè)共同特性，就是啟動(dòng)負(fù)荷大但是運(yùn)行后負(fù)荷小的問(wèn)題，如果核算不好或者選用的啟動(dòng)方式不佳，將會(huì)浪費(fèi)很多的人力物力財(cái)力等成本。所以可以綜合自身的投資預(yù)算多與設(shè)備廠家及發(fā)電機(jī)組廠家進(jìn)行溝通，選定佳、適宜的方案。選定啟動(dòng)方式之后核算出所有設(shè)備的啟動(dòng)電流(惡劣工況時(shí))及運(yùn)行電流，終計(jì)算出需要配置多大功率的發(fā)電機(jī)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(duì)環(huán)境因素的考慮

Consideration of environmental factors

礦山大家都知道使用環(huán)境非常惡劣，甚至有些地方處于高海拔地區(qū)，發(fā)電機(jī)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(huì)導(dǎo)致采購(gòu)功率與實(shí)際運(yùn)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(jù)適用功能進(jìn)行選購(gòu)

Choose according to applicable functions

對(duì)于專門從事礦山用的發(fā)電機(jī)組廠家會(huì)有一些特殊的配置，例如專門防風(fēng)沙的重型過(guò)濾器、低溫啟動(dòng)裝置、定期提醒機(jī)組保養(yǎng)的預(yù)警裝置等。礦山的發(fā)電機(jī)組多為數(shù)臺(tái)并列運(yùn)行，對(duì)于發(fā)電機(jī)組出現(xiàn)的重大故障征兆無(wú)法用聲音或肉眼觀測(cè)(例如異響、抖動(dòng)、輕微的三漏等)而如果擁有報(bào)警裝置可以有效的監(jiān)測(cè)曲軸箱壓力，可以大大的避免了發(fā)動(dòng)機(jī)一些重大故障的產(chǎn)生(如對(duì)于發(fā)電機(jī)組而言致命的拉缸、拉瓦現(xiàn)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(jù)實(shí)際情況對(duì)臺(tái)數(shù)的確定

Determine the number of units based on actual conditions

對(duì)于主用的礦山發(fā)電機(jī)組，必須要預(yù)留配置多一臺(tái)套的機(jī)組進(jìn)行長(zhǎng)期備用，這樣短期內(nèi)看似投資會(huì)很大，但是只要是設(shè)備，終會(huì)有故障的時(shí)候，那么備多一臺(tái)備用機(jī)組從長(zhǎng)遠(yuǎn)看一定是非常有必要的。礦山發(fā)電機(jī)組需要對(duì)日常的易損件、易出現(xiàn)的故障點(diǎn)配件進(jìn)行常規(guī)采購(gòu)及庫(kù)存，這樣可以在故障突發(fā)的時(shí)候有備件進(jìn)行應(yīng)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.