How to maintain dry-type test transformer?

Dry-type test transformers mainly rely on air convection cooling equipment. Therefore, it has good heat dissipation performance and excellent environmental usability. Therefore, simple dry-type transformers are generally introduced into every corner of people’s lives with their unique advantages. So, how can users maintain high-quality and reliable dry-type transformers to prolong their service life? The details are as follows:

GTB series dry-type test transformer
First: pay attention to iron core inspection
Users should pay attention to use clean compressed air and oxygen to purge the core of the equipment, the surface and gap of the fixture to effectively remove foreign objects in the equipment. In addition, users should also pay attention to carefully check the clamps of the equipment, whether the tension bolts, fixing bolts and inner screws are loose. If the core and surface coating of the clamp are damaged, the user needs to repair it with the same color paint in time
Second: pay attention to the maintenance of the coil
Users should pay attention to regularly check whether the lead insulation of weather-resistant dry-type transformers is intact, whether there is deformation, brittleness and lead-free lines. In addition, users should pay attention to testing the dry transformer leads and overheated joints, whether the lead connectors are reliable, when the user When it is found that the insulation layer of the coil is deformed and becomes brittle, it needs to be replaced in time
Third: pay attention to the electrical connection
According to research, during the operation of reliable dry-type transformers, users have a certain contact pressure in the electrical connections to ensure good electrical conductivity of the equipment. In addition, the user should carefully check the effective connection between the low-voltage lead-out wire of the dry-type transformer and the connecting busbar, high-voltage terminals and high-voltage cable terminals.
Of course, in addition to the above-mentioned problems that users need to pay attention to when using dry-type transformers, users also need to carefully check whether all equipped fans can be turned on and off at the same time. Moreover, the transformer recommended by the reactor manufacturer cannot be separated for a long time from manufacture to operation, so as to avoid the effect of equipment insulation and subsequent use.