Dry transformer three -phase temperature

2022-12-16 14:27:31

35次

The three -phase temperature of the dry transformer is its important characteristic performance. Only the three -phase temperature of the dry transformer is more secure and stable. Therefore, in the use of dry transformers, the three -phase temperature needs to be balanced, but sometimes what is the increasing temperature difference between temperature differences? Let's analyze it below:

1. First of all, it is necessary to determine how to get the 30 degree temperature difference. The measurement method must be determined first. This is the prerequisite for everything.

2. This situation is likely that the load of A phase is heavier, and the C -phase load is lower. If this is the case, it is normal for 10 degrees.

3. If the three -phase load is balanced, the difference is 30 degrees. Then check the external conditions of the transformer first, such as the heat dissipation environment, including ventilation, whether the thermometer temperature probe is inserted, and so on.

4. If everything is normal, it is 30 degrees. This requires further inspections.

5. First of all, under the premise of the short point, the position of the temperature meter temperature test (such as the A phase of the A to the C phase) may be the problem of the thermometer.

6. If there is still a temperature difference, check the situation of the coil. A: Whether the insulation resistance of the transformer is qualified; B: Measure the DC resistance of the transformer to see if there is a short circuit between turbida.

7. The last reason is that the iron core of the transformer is not working properly. This is only theoretically possible, and in fact, it is almost not encountered. If other possibilities are excluded, it can only be updated to the transformer.

The above is the analysis of the cause of the three -phase temperature difference between dry transformers. In the operation of the dry transformer, we should pay attention to the operating temperature of the transformer to ensure the stability and safety of the dry transformer operation.

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