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

2、清洁改善机房环境，定期更换三滤；

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

3、每月进行空载，每半年进行加载试机等方面维护；

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

4、使用电源监控进行实时观测电质量参数。

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

5、现有维护手段局限性：

5. Limitations of existing maintenance methods:

现有维护中的加载测试也只是对后端现有用电设备的带载测试，存在一定风险，并且功率较低；

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;

更换三滤或经过大修没有科学依据；

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

更换三滤或经过大修后，没有专门负载进行加载试机，不清楚是否能达到预期目的；

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;

空载试机和小功率带载产生的大量积碳。

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

柴油发电机在小负荷下运行，随着运行时间的延续，会出现以下故障：

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

1、对于增压式柴机组，由于低载、空载，增压压力低，容易导致增压器油封（非接触式）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、增压器的增压室内机油积聚到一定程度，就会从增压器的结合面处渗漏出。

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

3、上窜至汽缸的一部分机油参与燃烧，一部分机油不能完全燃烧，在气门、进气道、活塞顶、活塞环等处形成积炭，还有一部分则随排气排出。这样，汽缸套排气道内就会逐步积聚机油，也会形成积炭。

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、长期小负荷运行，还会更严重的导致运动部件磨损加剧，发动机燃烧环境恶化等导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，柴机组制造厂商无论对自然吸气型还是增压机型的使用都强调应尽量减少低载/空载运行时间，并规定更小负荷不能低于机组额定功率的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.

柴油发电机长时间满载运行，不但可以提高本身性能，找出安全隐患，还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，市场上对燃气发电机的的维保是指损坏维修和日常保养两个方面：维修是指柴油发电机产生故障后，针对所出现的故障进行更换各种配件等手段或是对柴油发电机进行大修，清除机组内的积炭等；保养方面的主要从定期的换三滤来保证机组的各种性能指标良好。

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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