Reasons for Abnormal Oil Level of Diesel Generators

When the diesel generator is running, you should pay more attention to the oil level. The actual operating technician of the diesel generator should check the mark of the oil level gauge on time. When the oil level is too high (such as in summer), the oil should be drained immediately; when the oil level is too low (such as in winter), the oil should be replenished immediately to maintain the normal oil level and ensure the safe and reliable operation of the transformer. If the oil level of the diesel generator transformer is too high or too low, it will directly interfere with the normal operation of the diesel generator. Let's learn the corresponding solutions for the high or low oil level.

Oil level too high. The oil level is higher than the high oil level line due to the high oil temperature, and sometimes there is even a situation where the oil level is at the end and the oil level cannot be seen clearly. The reason why the oil level is too high may be: the abnormal operation of the transformer cooler makes the oil temperature of the transformer high, and the oil expands when heated, resulting in an increase in the oil level; when the transformer is refueled, add more oil, if the working temperature rises significantly, it will cause oil level too high. If the oil level is too high, it is caused by abnormal operation of the cooler.

Starlight Power Generation Equipment recommends users to check whether the surface of the cooler is blocked by dust, whether the upper and lower valves of the oil pipe can be opened, whether the pipeline is blocked, whether the fan and submersible pump are operating normally and scientifically, and whether the temperature of the cooling medium is suitable, whether the flow is sufficient. If the oil level is too high due to excessive refueling, the oil should be drained to an appropriate relative height. If the oil level cannot be seen clearly, it should be identified where the high oil level line is, and then the oil should be drained to an appropriate relative height.

Oil level too low. When the oil level of the transformer is significantly lower than the oil level corresponding to the oil temperature at that time, and the oil level is below the minimum standard oil level line or cannot be seen clearly, it should be determined that the oil level is too low. The reason that the oil level is too low may be: transformer oil seepage; the original oil level of the transformer is not high, and the oil level is too low when the transformer load suddenly decreases or the external working temperature decreases significantly; strong oil water-cooled transformer oil Long time flowing into the oil cooler will also make the oil level too low.

Too low oil level can cause light gas maintenance behavior, and in the case of a float relay, heavy gas maintenance trips. When the oil is obviously lacking, the transformer core and winding will be exposed in the air, which will not only easily absorb moisture and reduce the working capacity of the insulation resistance, but may also cause the breakdown of the insulation resistance. Therefore, if the oil level of the transformer is too low or the oil level is significantly reduced, the oil should be replenished to the normal oil level as soon as possible. If the oil level is significantly reduced due to oil seepage, it is strictly forbidden to change the gas maintenance from trip to signal to eliminate oil seepage and restore the oil level to normal. If a large amount of oil seeps, the oil level drops below the gas relay or continues to decrease, stop using the transformer immediately.

Fake oil level. The reasons for the false oil level may be: when the non-capsule-sealed oil pillow oil standard pipe is blocked, the respirator is blocked or the air hole of the explosion-proof pipe is blocked, there will be a false oil level. When there is a corresponding total amount of air in the capsule-sealed oil pillow, the capsule is blocked and the breathing is not smooth, the capsule is installed in an unreasonable position, and the capsule bag is ruptured, etc., false oil levels can also be caused. To solve the problem, you need to cancel the heavy gas maintenance first.

Starlight Power was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to sales@dieselgeneratortech.com we will pay highly attention on your question.