It is necessary to carry out investigation on the power supply voltage of specific power consumption sites, synthesize the specific electricity consumption of customers and the regional standards, and then select one by one referring to the technical data information marked on the transformer factory nameplate. Generally, the transformer capacity, working voltage, current volume and natural environment standards should be considered comprehensively, in which the volume selection should be based on the customer's electricity consumption machine design The volume, characteristics and service time of the standby are used to determine the load required, so the volume of dry-type transformer is selected.
Secondly, in the whole process of normal operation of dry-type transformer, the power consumption borne by dry-type transformer should be 75-90% of the short-circuit capacity of dry-type transformer. In operation, when the specific load of dry-type transformer is less than 50%, the small capacity product transformer should be removed and replaced. If it is lower than the short-circuit capacity of the transformer, the large transformer should be replaced immediately.
Naturally, the line switching power supply determines the working voltage value of the primary coil of the dry-type transformer. The working voltage value of the secondary coil is selected according to the power consumption machinery and equipment, and the best choice is the bottom voltage three-phase four wire power supply system. That can produce additional driving power consumption and general lighting electricity.
The above content is about the selection method of dry-type transformer capacity. It can be said that the selection of dry-type transformer capacity should be carried out in a comprehensive and specific way as far as possible. Only in this way can we ensure the selection of transformer products that can consider specific requirements.
Service