First of all, it is necessary to determine the lightning protection mode of the generator set, mainly according to the generator capacity, the strength of local lightning activity and the requirements for power supply reliability.

理論和實踐證明，經(jīng)過變壓器再與架空輸電線連接的發(fā)電機組，只要可靠地保護了變壓器，一般就不需要對發(fā)電機組再采取防雷保護措施，在多雷區(qū)，無架空直配線的特別重要的發(fā)電機組，為防止變壓器高壓側(cè)的雷電波經(jīng)過變壓器危及發(fā)電機的絕緣，宜在發(fā)電機的出線上裝設(shè)一組磁吹避雷器。

Theory and practice have proved that as long as the transformer is reliably protected, the generator set connected with the overhead transmission line after passing through the transformer generally does not need to take lightning protection measures for the generator set. In the lightning area, the particularly important generator set without overhead direct wiring, in order to prevent the lightning wave on the high-voltage side of the transformer from endangering the insulation of the generator through the transformer, A set of magnetic blow arresters should be installed on the outgoing line of the generator.

直接與架空配電線路連接的發(fā)電機組必須進行防雷保護，應(yīng)根據(jù)國家標準設(shè)計規(guī)范的規(guī)定，按不同情況對發(fā)電機組絕緣采取不同的防雷保護措施。保護高壓旋轉(zhuǎn)電機用的避雷器，一般采用磁吹避雷器，避雷器宜靠近發(fā)電機組。在一般情況下，避雷器可裝在電機出線處；

The generator set directly connected to the overhead distribution line must be protected against lightning, and different lightning protection measures shall be taken for the insulation of the generator set according to different conditions according to the provisions of the national standard design code. The lightning arrester for protecting high-voltage rotating motor generally adopts magnetic blowing lightning arrester, and the lightning arrester should be close to the generator set. In general, the lightning arrester can be installed at the outgoing line of the motor;

如接在每一組母線上的發(fā)電機不超過兩臺，或單機容量不超過500kw，且與避雷器的距離不超過50m時，避雷器也可裝在每一組母線上當直配電機中性點能引出且未直接接地時，應(yīng)在中性點上裝設(shè)磁吹或普通閥型避雷器。戶外使用發(fā)電機組一定要注意防雷，確保人身安全。

If there are no more than two generators connected to each group of bus, or the single unit capacity is not more than 500kW, and the distance from the lightning arrester is not more than 50m, the lightning arrester can also be installed on each group of bus. When the neutral point of direct distribution motor can be led out and is not directly grounded, magnetic blowing or ordinary valve type lightning arrester shall be installed on the neutral point. Pay attention to lightning protection when using generator sets outdoors to ensure personal safety.

很多客戶購買柴油發(fā)電機組作為備用電源，一年才會用上幾次。如果柴油發(fā)電機組處于長期停運狀態(tài)不進行正確保養(yǎng)，將會導(dǎo)致需要使用時卻發(fā)現(xiàn)發(fā)電機啟動不了。那么柴油發(fā)電機組處于長期停運狀態(tài)，有什么需要注意的事項呢？

Many customers buy diesel generator sets as standby power supply, which can only be used several times a year. If the diesel generator set is in a long-term shutdown state and is not properly maintained, it will lead to the failure of the generator to start when it needs to be used. So what should we pay attention to when the diesel generator set is in a long-term shutdown state?

一、封存前

1、 Before seal

1、在柴油發(fā)電機組使用后，在熱態(tài)下放盡柴油發(fā)電機組潤滑油，包括機油濾清器中的機油。因冷卻液具有防銹功能，不需要排放。向曲軸箱內(nèi)加入合格的規(guī)定容量的封存油，起動柴油發(fā)電機組至怠速，運轉(zhuǎn)1-1.5min即行停車，然后從油底殼中放出封存油。發(fā)動機內(nèi)部封存油為經(jīng)脫水的CF級15W/40潤滑油。

1. After the last use of the diesel generator set, drain the lubricating oil of the diesel generator set in hot state, including the oil in the oil filter. Because the coolant has anti rust function, it does not need to be discharged. Add qualified sealed oil with specified capacity into the crankcase, start the diesel generator set to idle speed, stop after running for 1-1.5min, and then drain the sealed oil from the oil pan. The sealed oil inside the engine is dehydrated CF grade 15W / 40 lubricating oil.

2、清理干凈柴油發(fā)電機組表面，檢查無可見的臟物、油污、銹跡、水跡等，然后用壓縮空氣吹干；用毛刷將防銹油均勻涂在所有柴油發(fā)電機組金屬表面機加工表面（即未噴漆的機加工表面）上；注意橡膠件、塑料件及纖維織物類零件表面禁止涂防銹油或防銹油接觸。

2. Clean the surface of diesel generator set, check that there is no visible dirt, oil stain, rust, water stain, etc., and then dry it with compressed air; Apply the antirust oil evenly on the metal surface and machined surface (i.e. unpainted machined surface) of all diesel generator sets with a brush; Note that the surfaces of rubber parts, plastic parts and fiber fabric parts shall not be coated with antirust oil or contacted with antirust oil.

注意：附件驅(qū)動帶輪表面需采取一定防銹措施。

Note: certain anti rust measures shall be taken for the surface of accessory drive pulley.

發(fā)動機外部封存推薦使用FD615脫水防銹油或滿足下面性能要求的防銹油。

Fd615 dehydrated antirust oil or antirust oil meeting the following performance requirements is recommended for external storage of the engine.

3、斷開蓄電池連接線，清潔端子，涂上一層薄油脂，給蓄電池充電。

3. Disconnect the connecting wire of the battery, clean the terminal, apply a thin layer of grease and charge the battery.

4、使傳動膠帶松弛

4. Loosen the drive belt

5、將所有外露氣管、水管或油管管口用防潮紙或氣相防銹紙或聚乙烯塑料薄膜膠帶進行封口或包扎，整個空氣濾清器也應(yīng)由防潮紙封口或包扎。

5. All exposed air pipes, water pipes or oil pipe orifices shall be sealed or wrapped with moisture-proof paper or vapor phase antirust paper or polyethylene plastic film tape, and the whole air filter shall also be sealed or wrapped with moisture-proof paper.

二、保存期間

2、 Save period

每月進行蓄電池充電。檢查蓄電池液面，需要時，添加，然后進行充電。每月用盤車工具盤動曲軸3-4圈。

Charge the battery every month. Check the battery level, add if necessary, and then charge. Turn the crankshaft 3-4 times a month with the turning tool.