Features of Single Phase Pole Mounted Distribution Transformer

1.1 Use less material

The single phase pole mounted distribution transformer of the same capacity uses 20% less iron and 10% less copper than the three-phase transformer. Especially when the wound iron core structure is used, the no-load loss of the transformer can be reduced by more than 15%, which will make the manufacture of single-phase transformers. Costs and operating costs are reduced at the same time, resulting in optimal life cycle costs.

1.2 Low line investment

Using a single-phase power supply system in the power grid can save 33% to 63% of wires. Calculated by economic current density, it can save 42% of wire weight. Calculated by mechanical strength, it can reduce wire consumption by 66%. Therefore, it can reduce the cost of the entire transmission line. Construction Investment. This is very meaningful in terms of street lighting and residential electricity consumption in the vast rural and urban areas of our country.

1.3 Conducive to modern production

Due to its simple structure, single phase pole mounted distribution transformer are suitable for large-scale modern production, which is conducive to improving product quality and efficiency. It is suitable for introducing new technologies, new materials, and new processes to obtain technical bonus points. In the theoretical calculation of line loss, it can be found that 80% of line losses occur on 20% of the main lines, so shortening the distance of low-voltage main lines can greatly reduce Low-voltage line loss, because the single-phase transformer is light in weight, it can be flexibly installed on the pole for use, which is convenient for going deep into the load center, reducing power supply nearby, and improving the quality of power supply. Generally, single-phase transformers supply power in a small range, and the fault spread is small, which is conducive to improving the reliability of power supply. At the same time, because the single-phase transformer is light in weight, easy to install and maintain, and flexible to use, it can be used in single-phase or three-phase transformers.

1.4 Less investment in construction

The construction of single-phase power supply system in light-load areas can reduce construction investment. The transformation of the single-phase power supply system in large-load areas must have greater economic investment. First, in order to reduce the line loss of the low-voltage main line, the high-voltage line should be introduced into the load center, and the investment in the construction of the high-voltage line should be increased. Second, the no-load loss and load loss after using multiple small-capacity transformers are more than the original single large-capacity transformer. Third, the purchase capital of multiple small-capacity transformers is also larger than that of a single large-capacity transformer. In foreign countries, due to the large amount of electricity used by residents, several or each of them use a single phase pole mounted distribution transformer. Although the investment is large, it is generally worthwhile for them.