Precautions when installing a combined box-type substation:
Oct 13, 2020
1. The combined substation mainly adopts natural air circulation cooling. Therefore, it is not allowed to stack items around, especially the door of the transformer room should not be blocked, and the attachments on the louver vents should be cleaned frequently to ensure that all electrical equipment does not exceed the allowable temperature.
2. The combined substation should be placed in a higher place, not in a low-lying place, so as not to pour rainwater into the box and affect the operation of the equipment.
3. The zinc oxide arrester is installed in the high-voltage power distribution room of the box-type transformer, and its installation method should be convenient for testing, disassembly and replacement.
4. The door of the combined substation should be opened outwards, with handles, concealed latches, locks, and concealed latches and locks shall be rust-proof.
5. The noise level of the box-type substation shall not be greater than the noise level specified by the transformer. Regardless of whether the box is made of metal or non-metal materials, the metal frame of the box should be well grounded with grounding terminals and marked with a grounding symbol.
6. The transformer room should be provided with natural ventilation, and the relationship between the internal temperature of the transformer and the output of the transformer should be given. The transformer room can be equipped with a room temperature monitoring device and a self-starting ventilation cooling device as required to ensure that the transformer runs at full load under the specified environmental conditions. The transformer should be able to enter and exit from the top of the box or the side door.
7. The box-type substation ground wire and neutral wire share a grounding grid. The grounding grid is usually driven by grounding stakes at the four corners of the foundation and then connected as a whole. The box-type substation and the grounding grid need to have two reliable connections.
