37.5 kVA Transformers On Telephone Pole-34.5/0.12*0.24 kV | Canada 2024

Single-phase pole-mounted transformer: Stable energy, lighting up every kilowatt of the future.

01 General

1.1 Project Description

This 37.5 kVA Single Phase Pole Mounted transformer was delivered to Canada in 2024. The rated power of the transformer is 37.5 kVA with ONAN cooling. The primary voltage is 34.5 kV with ±2*2.5% tapping range (NLTC), the secondary voltage is 0.24/0.12kV, they formed a vector group of Ii6. Pole mounted transformer is a kind of transformer installed on the pole of the power line, which is mainly composed of primary coil, secondary coil and iron core. It uses the principle of electromagnetic induction to change the AC voltage, which is used for voltage transformation, current transformation, impedance transformation and isolation of power system. The working principle of pole mounted transformer is based on electromagnetic induction, when the AC current in the primary coil changes, magnetic flux is generated in the core, and the magnetic flux cuts the secondary coil. This generates an induced electromotive force in the secondary coil. By changing the ratio of turns between the primary coil and the secondary coil, different voltage transformations can be achieved. 50KVA and below are suitable for areas with small loads such as rural, mountain and pastoral areas, and 1000KVA is suitable for areas with small installation space and large load demand.

1.2 Technical Specification

37.5 KVA transformer specifications type and data sheet

1.3 Drawings

37.5 KVA pole mounted transformer diagram drawing and size.

02 Manufacturing

2.1 Core

The single-phase pole-mounted transformer with a wound core offers enhanced efficiency and reliability for overhead distribution networks. Its compact, robust design reduces no-load losses and noise, making it an ideal choice for utility applications demanding superior performance and energy savings in a space-saving configuration.

2.2 Winding

The low voltage foil coil has a large surface area, which can effectively reduce the resistance of the winding and reduce the energy loss. High-voltage wire winding generally uses a smaller section, so that the design can achieve higher insulation strength, this combination can take into account the advantages of both, improve the overall electrical performance. The combination design between low and high voltage windings can reduce electromagnetic interference. The foil-wound structure of the low-voltage winding can evenly distribute the current and reduce the electromagnetic noise caused by the uneven distribution of the current, thus improving the reliability and stability of the equipment. The foil-wound structure has better heat dissipation performance than the traditional round wire winding. The large contact area is conducive to the rapid dissipation of heat, and the combination of high-voltage wire winding makes the entire system maintain a low temperature under load conditions, improving the safety and service life of the equipment. Low-voltage foil winding provides higher electrical conductivity and current carrying capacity in the same mechanical space, while the combination of high-voltage wire winding allows the entire design to remain compact, allowing efficient use of available space. This makes the equipment design more flexible and adaptable to the space and weight requirements of modern equipment.

2.3 Tank

The cylindrical tank shape provides a large surface area to facilitate convection and heat dissipation of the transformer oil. This design helps to rapidly dissipate heat under load conditions, ensuring that the transformer maintains a low temperature under various working conditions, improving operating efficiency and safety. The cylinder shape can effectively disperse the internal pressure, reduce the stress concentration phenomenon, and avoid the deformation or rupture of the tank under high temperature and high pressure. This design improves the structural strength and durability of the tank and extends the service life of the transformer. The design of the cylinder tank is usually equipped with easy access to the maintenance port and inspection interface, which makes the inspection and maintenance of the oil and components inside the transformer more convenient. This helps to reduce maintenance costs and improve system reliability in practical applications. The design of the cylinder tank is usually equipped with easy access to the maintenance port and inspection interface, which makes the inspection and maintenance of the oil and components inside the transformer more convenient. This helps to reduce maintenance costs and improve system reliability in practical applications. Cylindrical tanks typically have a compact design that helps reduce the overall space taken up. This is especially important for systems with limited installation sites to improve transformer compatibility and convenience. The cylindrical design naturally reduces noise transmission compared to other shapes. The vibration and noise generated by the transformer during operation can be controlled by the resonance characteristics of the circular structure, thus reducing the impact on the surrounding environment.

2.4 Final Assembly

03 Testing

04 Packing and Shipping

05 Site And Summary

Thank you for your interest in our single-phase pole-mounted transformer! As a key component in power transmission, it delivers high efficiency, low losses, and exceptional stability, ensuring the smooth operation of power systems. With customer needs at the core, we continuously pursue technological innovation and quality improvement to provide you with more reliable power solutions and support. Moving forward, we look forward to working with you to build a smarter and more sustainable energy future together!