The high-frequency transformer has no noise at all during operation. This is a normal phenomenon, but sometimes there will be a lot of noise, which means that you can judge whether the transformer is faulty by sound. Generally speaking, if there are several problems in the sound of the dry-type transformer, it means that the dry-type transformer has a fault and must be repaired. Let's take a look with the editor of the high-frequency transformer manufacturer:

1. The high frequency transformer has noise

If the sound of the transformer is larger than normal and there is obvious noise, but there is no obvious abnormality in the current and voltage, it may be caused by the loosening of the internal clamp or the screw pressing the iron core, which makes the vibration of the silicon steel sheet increase.

2. High-frequency transformer has discharge sound

If a partial discharge occurs inside or on the transformer, there will be a "crack" discharge sound in the sound. When this happens, if you can see blue corona or sparks near the bushing of the high-frequency transformer at night or under rainy weather, it means that the porcelain parts are seriously dirty or the equipment clamps are not in good contact; if the internal discharge of the transformer , It is the electrostatic discharge of ungrounded parts, or the discharge of the tap switch due to poor contact. At this time, the transformer should be further tested or disabled.

3. The high frequency transformer has the sound of boiling water

If the sound of the transformer is mixed with the sound of water boiling and the temperature changes sharply, and the oil level rises, it should be judged that the transformer winding has a short-circuit fault, or the tap switch has caused serious overheating due to poor contact. At this time, the transformer should be stopped immediately for inspection.

4. The high-frequency transformer has a popping sound

If there is an uneven popping sound in the sound of the transformer, it is the insulation breakdown inside or on the surface of the transformer. At this time, the transformer should be stopped for inspection immediately.

The above sound problem is a detail that cannot be ignored. Everyone should grasp it carefully, otherwise it will be detrimental to the high-frequency transformer. Not only the effect of the high-frequency transformer is not good, but the service life may be shortened!