500 kVA Pole Transformer-4.16/0.6 kV | Canada 2024

The reliable choice, power uninterrupted – Single-phase pole-mounted transformer energizing every line.

01 General

1.1 Project Description

This 500 kVA Single Phase Pole Mounted transformer was delivered to Canada in 2024. It is a Platform type transformer, whose bottom has a platform to support it, The primary voltage is 4.16GrdY/2.4kV and the secondary voltage is 0.6kV. The capacity is larger than the normal one. Designed according to standard CSA C2.1. This 500 kVA Single phase transformer with a weight of 2150 kg is put on a platform. We designed it with our advanced technology and high quality winding material to achieve the on load loss 3 kW. The impedance is 4% with the ONAN cooling method.

The pole transformer is an important equipment used in the power system, which is mainly used to convert high-voltage electrical energy into low-voltage electrical energy to meet the needs of different voltage levels. It is usually installed on the poles of the electricity transmission and distribution grid, hence the name. The working principle of the pole mounted transformer can be simply summarized as electromagnetic induction. When the high voltage electrical energy flows through the high voltage coil, the resulting magnetic field creates a magnetic flux in the iron core. This magnetic flux will further induce the electromotive force in the low-voltage coil, thus converting high-voltage electrical energy into low-voltage electrical energy.

Pole mounted transformers are widely used in power transmission and distribution systems. They are usually installed on the poles of the power transmission and distribution grid and are used to convert high-voltage electrical energy into low-voltage electrical energy suitable for domestic, industrial and commercial use. Pole mounted transformers can also be used in power substations, industrial and mining enterprises, urban construction and other fields. The cylindrical transformer is small in size, light in weight and easy to install and maintain. Low cost, suitable for small and medium-sized power transmission and distribution systems. The conversion efficiency of the pole mounted transformer is high and the energy loss can be effectively reduced.

Our 500 kVA pole transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.

1.2 Technical Specification

500 kVA pole transformer specifications type and data sheet

1.3 Drawings

500 kVA pole transformer diagram drawing and size.

02 Manufacturing

2.1 Core

The materials used for rolled core are ultra-thin cold-rolled silicon steel sheet with high permeability and soft magnetic strip such as permalloy. The thickness of the silicon steel sheet is 0.18~0.30; The thickness of the Permalloy strip is 0.03~0.10mm. Taking small and medium-sized transformers as an example, the use of rolled core has the following advantages: 1) Under the same conditions, the no-load loss of the rolled core is reduced by 7% to 10% compared with the stacked core; No-load current can be reduced by 50%~75%. 2) The rolled core can be made of very thin high-permeability cold-rolled silicon steel sheets, which can produce transformers with lower losses. 3) The rolled core has good processability, no shearing waste, and the utilization rate is almost 100%. It can also adopt mechanized operation, eliminating the stacking process, and the production efficiency is 5 to 10 times higher than that of the stacking core. 4) The rolled coil core itself is a whole, does not need to be fixed by clamping support parts, and does not have a joint, so under the same conditions as the stacked core, the transformer noise can be reduced by 5~10dB. 5) The process coefficient of the rolled core single-phase transformer is about 1.1; Three-phase below 1.15; For stacking iron cores, the process coefficient of small capacity is about 1.45, and the process coefficient of large capacity is about 1.15. Therefore, the rolled coil core is particularly suitable for small and medium-sized transformers.

2.2 Winding

The flat structure of the low-voltage foil winding increases the surface area of the winding and helps to improve the heat dissipation efficiency. Therefore, under high load conditions, the transformer operates at a lower temperature, extending the service life of the equipment. The large section of the low-voltage foil winding can effectively reduce the current loss (I²R loss) and reduce the eddy current loss in the winding, improve the overall energy efficiency and optimize the transformer performance. Because of its planar structure, the low-voltage foil winding has higher short-circuit current resistance and can better withstand instantaneous current without overheating or damage, thus improving the safety and stability of the transformer. The design of foil winding can effectively suppress the noise during operation, especially in the state of high current, the noise control performance is more obvious, suitable for applications with noise requirements. The combination design of low-voltage foil winding and high-voltage wire winding makes the magnetic field distribution more uniform, reduces the phenomenon of magnetic leakage, enhances the electromagnetic compatibility of the transformer, and reduces the interference to the surrounding electrical equipment.

2.3 Tank

The cylindrical tank uses a reasonable geometry to effectively disperse internal and external pressure, enhance the structural strength of the tank, and reduce the risk of deformation and damage caused by temperature changes or load fluctuations. The cylinder design makes the oil flow more uniform and can effectively reduce local overheating in the oil. In this way, it can ensure that the insulating oil of the transformer is continuously circulated, so that the heat is more evenly distributed and dissipated, which helps to improve the overall reliability of the transformer. The cylindrical fuel tank has better seismic performance. Under the action of earthquakes or other external forces, the circular structure is relatively stable in mechanical performance, which can better protect the internal components and reduce the risk of transformer damage. The cylindrical tank design usually has an excellent sealing mechanism, which can effectively prevent the leakage of insulating oil. At the same time, it can also prevent the entry of external pollutants such as air and moisture, and maintain the quality and service life of the insulating oil.

2.4 Final Assembly

03 Testing

04 Packing and Shipping

05 Site And Summary

Thank you for your interest and support in our Single-Phase pole transformer! With its excellent performance, stable operation, and reliable quality, our product has become the ideal choice in the power transmission and distribution field. We will continue to uphold the principles of technological innovation and superior quality to provide you with safe and efficient power solutions. We look forward to working with you to create a brighter future together! If you have any inquiries or requirements, please feel free to contact us.