Precautions for installation of dry-type transformers

Dry-type transformers are widely used in various places, so we need to understand the installation precautions. The stable operation of dry-type transformers and its service life depend to a large extent on the reliability of transformer winding insulation. The editor tells you the installation precautions of dry-type transformers.

Reason: Poor installation of dry-type transformer will aggravate the vibration of the transformer and amplify the noise of the transformer.

Judgment method:

1) The foundation of the transformer is not firm or flat (one corner is floating), or the bottom plate is too thin.

2) Putting up the transformer with channel steel will increase the noise.

Solution:

1) The original installation method shall be modified by the installation unit.

2) Anti-vibration rubber pads are added under the power transformer trolley to solve some noise.

Influence of installation environment

Reason: The operating environment affects the noise of the transformer, and the unfavorable environment will increase the noise of the transformer by 3DB~7DB.

Judgment method:

1) The transformer room is very large and empty, there is no other equipment around, and there is an echo.

2) The dry-type transformer is too close to the wall, less than 1 meter away. The transformer is placed at the corner, and the noise reflected from the wall is superimposed with the noise of the transformer, which increases the noise of the transformer.

3) The oil transformer was used originally, and the noise of the transformer will be affected after the dry-type transformer is replaced. The reason is because the crude oil transformer room is relatively small, and there is an oil leakage chamber and an oil leakage hole. The dry-type transformer is like being placed on a speaker.

Solution: Some sound-absorbing materials can be properly installed indoors.

The installation precautions of dry-type transformers are very important, otherwise it will seriously affect the normal operation in the later stage, so we need technicians to install them.