50Kva 13.8Kv to 120V/240V Single Phase Pole Mounted Transformer
1. Product Description
The 50Kva 13.8Kv to 120V/240V Single Phase Pole Mounted Transformer is a standard oil-immersed single-phase distribution transformer engineered for overhead power grid systems, widely adopted in North American residential and rural power supply projects. Designed with a rated capacity of 50kVA, this pole-mounted power transformer efficiently steps down high 13.8kV primary line voltage to dual 120V/240V secondary working voltage, perfectly matching the low-voltage power consumption standards of civilian and light commercial electrical equipment.
Manufactured in full compliance with ANSI/IEEE C57 and IEC60076 international electrical standards, this step-down voltage transformer adopts a mature oil-immersed natural air cooling (ONAN) structure, with stable 50/60Hz operating frequency and standard 4% impedance. The winding supports pure copper or aluminum material customization, with low no-load loss and load loss, ensuring long-term continuous and stable operation in outdoor harsh environments. As a mainstream outdoor pole-mounted distribution transformer, it integrates insulation protection, voltage conversion and safety isolation functions, and is the core power conversion equipment for medium-voltage overhead power distribution networks.
2. Core Uses
This 50kVA single-phase voltage conversion transformer focuses on medium-to-low voltage power conversion and power distribution optimization, solving the voltage mismatch problem between 13.8kV high-voltage overhead lines and 120V/240V terminal electrical loads. Its core function is to safely and stably convert high grid voltage into usable low voltage for end users, while maintaining balanced voltage output and stable power supply during peak and off-peak electricity consumption periods.
As a dedicated rural power supply transformer and residential power distribution transformer, it undertakes centralized power distribution and voltage regulation tasks for decentralized power loads. It can effectively isolate high-voltage circuits to prevent high-voltage leakage risks, protect terminal electrical appliances from voltage surge damage, and improve the overall safety and stability of the overhead power supply system. In addition, this 13.8kV to 120/240V pole transformer can also balance grid load pressure, reduce line power loss, and optimize the power supply efficiency of regional distribution networks.
3. Application Scenarios
The 50Kva 13.8Kv to 120V/240V Single Phase Pole Mounted Transformer has strong environmental adaptability and installation flexibility, and is widely used in various outdoor overhead power distribution scenarios suitable for single-phase power supply.
3.1 Rural Residential Power Supply
It is the preferred power distribution equipment for rural scattered households and suburban residential areas. Most rural overhead power grids adopt 13.8kV medium-voltage power transmission, and this single-phase pole-mounted transformer can stably convert grid voltage into 120V/240V household electricity, meeting the daily power consumption needs of household lighting, electrical equipment and small household appliances for single-family and multi-family scattered residences.
3.2 Light Commercial Power Distribution
Suitable for small street shops, rural supermarkets, roadside service stations and other light commercial venues with low power load demand. The 50kVA rated capacity can fully cover the power consumption of commercial lighting, small office equipment and low-power commercial electrical appliances, providing stable single-phase power support for decentralized small commercial terminals.
3.3 Remote Area Power Supply
Ideal for remote mountainous areas, pastoral areas and off-grid decentralized power supply areas with sparse population and long power supply lines. The pole-mounted installation method eliminates the need for fixed indoor installation sites, adapting to the complex terrain of remote areas, and solving the power supply problem of remote residential and small public facilities.
3.4 Temporary Outdoor Power Projects
It can be used for temporary power supply of rural construction sites, outdoor engineering operations, rural road monitoring and outdoor public facilities. Its lightweight pole-mounted structure and stable voltage conversion performance can meet the short-term and long-term stable power demand of various outdoor low-power single-phase electrical equipment.
4. Product Features
4.1 Stable Voltage Conversion Performance
This 13.8kV step-down transformer adopts precision winding process and high-quality iron core materials, with accurate voltage conversion ratio, ensuring stable 120V/240V dual-voltage output. It has strong anti-interference ability, can resist voltage fluctuation and line surge of overhead grid, and maintains constant output voltage under full load and half load conditions, effectively avoiding equipment damage caused by unstable voltage.
4.2 Outdoor Weather Resistance & Durability
As a professional outdoor pole-mounted distribution transformer, the whole machine adopts anti-corrosion, rust-proof and waterproof coating treatment, and the sealed oil-immersed structure can effectively resist rain, snow, high temperature, low temperature and ultraviolet erosion. It adapts to -40℃ to 45℃ extreme temperature environment, with excellent weather resistance and environmental adaptability, and the service life can reach more than 20 years under normal operating conditions.
4.3 Convenient Pole-Mounted Installation
The product is designed with integrated pole-mounted fixing brackets, with compact overall structure and reasonable weight distribution. It is suitable for standard power pole installation, with simple and fast installation process, no need for complex foundation construction and indoor equipment room, greatly reducing installation cycle and engineering cost. The overhead installation method also avoids ground waterlogging and collision damage, improving equipment operation safety.
4.4 High Energy Saving & Low Loss
Complying with DOE 2016 energy-saving standards and IEEE industry specifications, this energy-saving single-phase transformer has extremely low no-load loss and load loss. The optimized magnetic circuit and winding structure effectively reduce reactive power loss during long-term standby and operation, greatly improving power utilization rate, reducing grid operation energy consumption, and meeting the energy-saving and consumption reduction requirements of modern power distribution systems.
4.5 Safe & Reliable Operation
Equipped with perfect insulation protection, overvoltage protection and oil pressure safety protection devices, the product can effectively prevent short circuit, overload and leakage faults. The fully sealed oil tank structure avoids insulating oil deterioration and moisture ingress, ensuring stable insulation performance. It has passed strict factory high-voltage withstand test and aging test, with low failure rate and high operation safety, suitable for long-term unattended outdoor operation.
4.6 Standardized & Customizable Design
The product strictly follows international general specifications, with universal interface and size, strong compatibility with mainstream 13.8kV overhead power grid systems and terminal 120V/240V electrical equipment. Meanwhile, it supports personalized customization of winding materials, impedance parameters and protection configurations according to user site conditions, meeting the differentiated power supply needs of different regional power grids and application scenarios.
5. Frequently Asked Questions (FAQ)
Q1: What is the maximum continuous load capacity of the 50Kva 13.8Kv to 120V/240V Single Phase Pole Mounted Transformer?
A: This 50kVA single-phase pole transformer is rated for continuous full-load operation with a maximum stable load capacity of 50kVA. In actual use, it can bear 1.1 times overload for a short time (within 2 hours) to cope with instantaneous peak power consumption of household and commercial equipment. For long-term stable operation, it is recommended to control the operating load within 80% of the rated capacity to extend the service life and avoid equipment aging caused by long-term full-load operation. The 120V/240V dual-output design can flexibly match single-phase load power distribution of different powers.
Q2: Is this 13.8kV to 120/240V pole mounted transformer suitable for coastal high-humidity and salt-fog environments?
A: Yes, it can adapt to coastal high-humidity and salt-fog working environments. The shell of this outdoor distribution transformer adopts multi-layer anti-corrosion electrostatic spraying process, and the internal structural parts are treated with rust and salt-fog resistance. The fully sealed oil-immersed structure can completely isolate external humid air and salt-fog from invading the interior, preventing insulation dampness and metal corrosion. For severe coastal industrial salt-fog areas, we can also provide enhanced anti-corrosion customized versions to further improve environmental adaptability.
Q3: What are the key maintenance items for the oil-immersed pole-mounted transformer in daily operation?
A: Daily maintenance of this energy-saving single-phase transformer is simple and low-cost. The key maintenance items include: regularly checking whether the transformer shell is deformed, rusted or leaking oil; observing the oil level and oil color of the insulating oil to ensure the oil quality is clear and free of turbidity and precipitation; checking the firmness of pole-mounted fixing parts and the tightness of wiring terminals to avoid loose wiring and poor contact; regularly testing the insulation resistance to ensure the insulation performance meets industry standards. It is recommended to conduct a comprehensive professional inspection every year, and replace the insulating oil every 5-8 years according to the operating environment to ensure long-term stable operation.
