Product Description

The single-phase power distribution transformer produced by ZHEJINAG ROOQ ELECTRIC CO.,LTD is simple in structure, small in size, and low loss, small iron loss. It is suitable for application and promotion in low-voltage distribution networks with low load density. At present, the single-phase power distribution transformers produced by our company are not only used in the domestic low-voltage distribution network, but also exported to the Philippines, Thailand, Venezuela, Ecuador, Argentina and other countries.

D9-M-5～100/10 series is a single-phase oil-immersed distribution transformer, single-phase single-frame double-pillar structure. The core material is DQ-133-30 (type 9), 30ZH120 (type 11), 23ZH90 (type 13) and other cold-rolled silicon steel sheets. The core material used in actual production is not less than the drawing requirements. The allowable deviation width of the longitudinal slit of the core piece is 0.2mm, and the shear burr is less than 0.03mm.

The 10KV single-phase distribution transformer uses a fully sealed corrugated oil tank structure. The transformer oil does not contact the surrounding air, so the transformer oil does not absorb external moisture and thus does not reduce the insulation strength. In addition, because oxygen cannot enter the oil tank, the insulation material is avoided The aging of the product increases the service life of the product.

Service Environment

1. Attitude: no more 1000M

2. Ambient temperature: the highest temperature:+40°C, the highest monthly mean temperature +30°C, the lowest temperature -60°C, the hight yearly mean temperature +20°C,

3. Installation environment: inclination of installation place<3, no obivious dirt and corrosive or flammable gas.

4. Customization is acceptable.

Compared with three-phase transformers, single-phase transformers of the same capacity use 20% less iron and 10% less copper. Especially when the wound core structure is adopted, the no-load loss of the transformer can be reduced by more than 15%, which will enable the manufacture of single-phase transformers. Cost and use cost are reduced at the same time, so as to obtain the best life cycle cost.

Using a single-phase power supply system in the power grid can save 33% to 63% of wires. Calculated by economic current density, 42% of wire weight can be saved. Calculated by mechanical strength, wire consumption can be reduced by 66%. Therefore, the entire transmission line can be reduced Construction Investment.

Due to its simple structure, single-phase transformers are suitable for mass modern production, which is beneficial to improve product quality and efficiency. In the theoretical calculation of line loss, it can be found that 80% of the line loss occurs on 20% of the main line. Therefore, shortening the distance of the low-voltage main line can greatly reduce the low-voltage line loss. Because the single-phase transformer is light in weight, it can be flexibly installed on the pole It is convenient to go deep into the load center, step-down power supply nearby, and improve power supply quality. Generally, single-phase transformers supply power in a small area, and the fault spread is small, which helps to improve 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 in use, it can be used in single-phase or three-phase transformers.

11KV series single phase oil immersed distribution transformer