2025-01-23
How to Determine the Reasonable Capacity of the Transformer
First, conduct an investigation on the supply – voltage electrical components, the user’s actual load, and local conditions. Then, refer to the technical data marked on the transformer nameplate one by one. Generally, factors such as transformer capacity, voltage, current, and environmental conditions need to be considered. When it comes to capacity selection, it should be determined based on the capacity, nature, and required load – time of the user’s electrical equipment. The following principles can be used to select the appropriate transformer capacity: Under normal operating conditions, the transformer should carry an electrical load equivalent to 75% – 90% of its rated capacity. If the actual load borne by the transformer during operation is less than 50% of its rated capacity, a smaller – capacity transformer should be used instead. Conversely, if the load often exceeds the rated capacity, a larger – capacity transformer should be replaced immediately. Regarding voltage selection: For the primary – coil voltage of the transformer, it should be determined according to the power – line voltage. The secondary – coil voltage should be based on the requirements of the electrical equipment. It is advisable to choose a low – voltage...
