Only limited to the following maintenance methods: 1. Check the four leakage phenomenon, surface, starting battery, oil and fuel of diesel generator;

2、清潔改善機房環境，定期更換三濾；

2. Clean and improve the environment of the machine room, and replace the three filters regularly;

3、每月進行空載，每半年進行加載試機等方面維護；

3. Carry out no-load maintenance every month and load test every half a year;

4、使用電源監控進行實時觀測電質量參數。

4. Use power monitoring to observe power quality parameters in real time.

5、現有維護手段局限性：

5. Limitations of existing maintenance methods:

現有維護中的加載測試也只是對后端現有用電設備的帶載測試，存在一定風險，并且功率較低；

The load test in the existing maintenance is only the load test of the back-end existing electrical equipment, which has certain risks and low power;

更換三濾或經過大修沒有科學依據；

There is no scientific basis for replacing the third filter or overhaul;

更換三濾或經過大修后，沒有專門負載進行加載試機，不清楚是否能達到預期目的；

After replacing the third filter or overhaul, there is no special load for load test run, and it is unclear whether the expected purpose can be achieved;

空載試機和小功率帶載產生的大量積碳。

Large amount of carbon deposit generated by no-load test run and low-power load.

柴油發電機在小負荷下運行，隨著運行時間的延續，會出現以下故障：

When the diesel generator operates under small load, the following faults will occur with the extension of operation time:

1、對于增壓式柴機組，由于低載、空載，增壓壓力低，容易導致增壓器油封（非接觸式）的密封效果下降。

1. For supercharged diesel units, due to low load, no-load and low pressurization pressure, it is easy to reduce the sealing effect of supercharger oil seal (non-contact type).

2、增壓器的增壓室內機油積聚到一定程度，就會從增壓器的結合面處滲漏出。

2. When the oil in the supercharger accumulates to a certain extent, it will leak from the joint surface of the supercharger.

3、上竄至汽缸的一部分機油參與燃燒，一部分機油不能完全燃燒，在氣門、進氣道、活塞頂、活塞環等處形成積炭，還有一部分則隨排氣排出。這樣，汽缸套排氣道內就會逐步積聚機油，也會形成積炭。

3. Part of the engine oil flowing up to the cylinder is involved in combustion, part of the engine oil can not be completely burned, and carbon deposits are formed at the valves, inlet ports, piston crown, piston rings, etc., and some are discharged with the exhaust. In this way, engine oil will gradually accumulate in the exhaust passage of cylinder liner, and carbon will also be formed.

4、長期小負荷運行，還會更嚴重的導致運動部件磨損加劇，發動機燃燒環境惡化等導致大修期提前的后果。

4. Long term low load operation will also lead to more serious consequences such as increased wear of moving parts and deterioration of engine combustion environment, leading to the advance of overhaul period.

因此，柴機組制造廠商無論對自然吸氣型還是增壓機型的使用都強調應盡量減少低載/空載運行時間，并規定更小負荷不能低于機組額定功率的25%—30%。

Therefore, the manufacturer of diesel generator set emphasizes to minimize the low load / no-load operation time regardless of the use of naturally aspirated or pressurized models, and stipulates that the minimum load shall not be less than 25% - 30% of the rated power of the unit.

柴油發電機長時間滿載運行，不但可以提高本身性能，找出安全隱患，還可以避免重大的事故。

Long time full load operation of diesel generator can not only improve its performance, find out potential safety hazards, but also avoid major accidents.

目前，市場上對燃氣發電機的的維保是指損壞維修和日常保養兩個方面：維修是指柴油發電機產生故障后，針對所出現的故障進行更換各種配件等手段或是對柴油發電機進行大修，清除機組內的積炭等；保養方面的主要從定期的換三濾來保證機組的各種性能指標良好。

At present, the maintenance of gas-fired generators in the market refers to two aspects: damage maintenance and daily maintenance: maintenance refers to the replacement of various accessories for the failure of diesel generators after the failure, or the overhaul of diesel generators to remove the carbon deposits in the units; In terms of maintenance, we mainly change the three filters regularly to ensure the good performance indexes of the unit.

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