4 Signs That Diesel Generator Sets Require New Excitation Rotor

The exciter rotor is a key component in diesel generator sets, which is crucial for generating the magnetic field required for power generation. Their working principle is to convert mechanical energy into magnetic energy.

When the exciter rotor rotates inside the diesel generator set, this process begins. As it rotates, it generates a magnetic field around it, which pushes electrons through the diesel generator set and generates current.

Over time, this important component of the industrial diesel generator set will wear out, and here are some signs you may notice when you need to replace the exciter rotor with a new one.

Abnormal vibration

If you notice abnormal vibration in the diesel generator set, it may indicate that the exciter rotor is worn. When the rotor rotates at high speed, defects or damage may cause imbalance and vibration. If left uncontrolled, these vibrations may lead to further damage and even forced power outages. If you notice vibration, it is best to have a professional inspect your diesel generator set and replace the components of the industrial diesel generator set if necessary.

Unbalanced voltage

When a diesel generator set is working properly, it should generate smooth and uniform electricity, which means that all electricity leaving the diesel generator set is balanced - just like the two sides of a balance are equal, but sometimes you may find that the electricity generated by the diesel generator set is uneven or unbalanced.

This is called unbalanced voltage, which may indicate that your exciter rotor must be replaced. If the exciter rotor is not working properly, the magnetic field may not be stable enough to generate uniform electricity, resulting in voltage imbalance. If you notice this warning signal, you must immediately address it to avoid further problems with the diesel generator set.

Diesel generator set continues to overheat

Diesel generator sets are designed to operate within a specific temperature range. If your diesel generator set continues to overheat, it may indicate a problem with its components, including the exciter rotor. As mentioned earlier, the exciter rotor generates a magnetic field by converting mechanical energy into magnetic energy.

However, if the rotor winding is damaged or worn, it may cause excessive heat and a burnt smell. This clearly indicates that there is a problem with the diesel generator set and it may be necessary to replace the exciter rotor.

Engine sound changes

If the engine sound of your diesel generator set sounds different from usual, it may indicate a problem, which may be related to the diesel generator set itself or a specific component called the exciter rotor.

When the engine sounds tense, it indicates that it is not running smoothly, which may indicate that the exciter rotor is worn and must be replaced. The worn exciter rotor may cause problems with the magnetic field of the diesel generator set, which is necessary for power generation.

If you find that the engine is tightened, it is best to have a professional inspect and replace any faulty components, such as the exciter rotor.

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