5kva 10 Kva 37.5kva 75kva 100kva 167 Kva 250kva Single Phase Pole Mounted Transformer
5kva 10 Kva 37.5kva 75kva 100kva 167 Kva 250kva Single Phase Pole Mounted Transformer
1. Product Description
This single phase pole mounted transformer covers a full series of mainstream capacity specifications including 5kva, 10kva, 37.5kva, 75kva, 100kva, 167kva and 250kva, serving as a standard oil-immersed overhead distribution solution tailored for global single-phase power grid systems. Designed exclusively for utility pole installation, this outdoor single-phase distribution transformer solves the load matching pain points of scattered power supply scenarios, covering ultra-small household loads all the way to medium-large residential and commercial centralized loads. It fully complies with ANSI/IEEE C57 industry standards and regional power grid specifications, being one of the most widely used power conversion equipment in rural electrification and suburban grid renovation projects.
Manufactured with mature industrial technology, the whole series of pole mounted single-phase transformers adopts high-quality low-loss silicon steel core and high-purity copper winding structure, equipped with traditional oil natural air natural cooling and fully sealed welded steel tank design. The complete capacity gradient from 5kva to 250kva allows precise load matching, avoiding the energy waste of oversized equipment and overload failure risk of undersized models. The optimized internal magnetic circuit structure effectively reduces magnetic flux leakage and no-load loss, ensuring stable voltage output and low power attenuation during long-term outdoor variable-load operation. Optional CSP completely self-protected configuration is available for enhanced on-site operational safety.
Different from pad-mounted and indoor transformers, this overhead single-phase power transformer features a lightweight integrated structure and dedicated pole mounting brackets, supporting rapid hoisting and installation on various utility poles without occupying ground land resources. Every capacity model from small 5kva/10kva to large 167kva/250kva undergoes strict factory full-load aging testing, insulation resistance detection and high-voltage withstand verification. With stable mechanical performance, excellent weather resistance and consistent power conversion accuracy, this full-range single-phase pole transformer adapts to long-term unattended operation of outdoor distribution networks in various regions.
2. Core Purpose
The core purpose of this full-capacity single phase pole mounted transformer is safe, efficient and low-loss medium-to-low voltage step-down and power distribution for single-phase overhead power grids. It mainly converts medium-voltage overhead line power into standard low-voltage single-phase power, providing compliant and stable power supply for residential households, agricultural facilities and small commercial equipment, and undertaking the basic power distribution task of decentralized power grid systems.
With graded capacity design ranging from 5kva to 250kva, this oil-immersed pole transformer achieves refined load matching for different power consumption scenarios. Low-capacity models target ultra-light scattered loads, while medium and large-capacity units adapt to dense centralized loads, effectively improving overall power grid operation efficiency. Its low-loss structural design significantly reduces no-load loss and line transmission loss in daily power distribution, helping power supply enterprises cut down long-term grid operation costs and optimize regional power quality.
In addition, the equipment provides reliable electrical isolation and fault protection for overhead power lines. The high-strength oil insulation structure blocks high-voltage surge and lightning interference, suppressing instantaneous current fluctuation and voltage flicker in single-phase grids. It can stably cope with frequent load switching and seasonal power consumption changes, ensuring continuous and safe power supply for outdoor decentralized power consumption points and improving the stability and reliability of rural and suburban power distribution networks.
3. Application Scenarios
3.1 Rural Household & Remote Area Power Supply
The 5kva and 10kva small-capacity single phase pole mounted transformers are the most common power equipment for single rural households, remote mountain residences and independent field buildings. These ultra-light capacity specifications perfectly match low daily power consumption of single-family households, supporting household lighting, small household appliances and basic living power demand. The pole-mounted installation method adapts to scattered rural building layouts, effectively solving the problem of difficult power supply and long-distance voltage drop in remote rural areas.
3.2 Agricultural & Pastoral Field Engineering
37.5kva and 75kva medium-capacity models are widely applied in farmland irrigation systems, pastoral breeding bases, rural agricultural machinery stations and field monitoring equipment power supply. Agricultural scenarios feature scattered loads and long-term intermittent operation, and the medium capacity can fully meet the power demand of water pumps, agricultural motors and field auxiliary electrical equipment. The outdoor anti-corrosion and weather-resistant design adapts to harsh field environments such as high humidity and strong sunlight, ensuring stable operation of agricultural power systems all year round.
3.3 Suburban Residential & Light Commercial Scenarios
100kva, 167kva medium-large capacity single-phase pole transformers are suitable for suburban villa clusters, multi-household centralized residential areas, street convenience stores and small community commercial facilities. These scenarios have relatively concentrated power loads and frequent load changes. The 100kva and 167kva specifications provide sufficient load margin to meet simultaneous power consumption of multiple households and commercial equipment, maintaining stable terminal voltage output and avoiding power supply instability caused by peak load surge.
3.4 Municipal Public & Large-Scale Decentralized Power Projects
The 250kva large-capacity single phase pole mounted transformer is tailored for urban rural junction power grid upgrading, rural centralized residential communities, rural road lighting systems and large-scale decentralized public power supply projects. It can undertake high-density single-phase load power distribution tasks, effectively solving insufficient power supply capacity of old rural grids, and supporting stable operation of municipal public facilities and large-area rural living power consumption.
4. Product Features
4.1 Full Graded Capacity Coverage & Precise Load Matching
This single-phase pole transformer series covers complete industry mainstream capacities of 5kva, 10kva, 37.5kva, 75kva, 100kva, 167kva and 250kva, realizing full coverage from ultra-small scattered loads to medium-large centralized loads. Users can select the most appropriate capacity according to actual on-site power consumption, which effectively avoids long-term overload operation of small-capacity equipment and idle energy waste of large-capacity equipment. The refined capacity grading greatly improves project matching accuracy and comprehensive cost performance of power distribution engineering.
4.2 Low-Loss Oil-Immersed Structure & Energy-Saving Operation
Adopting high-permeability low-loss silicon steel core and high-purity copper winding, the equipment minimizes magnetic flux leakage and internal resistance loss. The mature oil-immersed natural cooling system ensures uniform heat dissipation during long-term continuous operation, effectively reducing operating temperature rise and no-load loss. Compared with traditional old-fashioned single-phase transformers, this series of pole mounted transformers has higher power transmission efficiency, lower daily operation energy consumption, and more prominent energy-saving and consumption-reducing effects, which is in line with modern power grid energy-saving operation standards.
4.3 Outdoor All-Weather Weather Resistance & High Durability
Designed specially for overhead outdoor operation, the whole machine adopts fully sealed welded steel tank and anti-aging insulating oil. The multi-layer electrostatic anti-rust and anti-corrosion shell resists ultraviolet erosion, rainwater corrosion, high temperature and low temperature temperature alternation. It has excellent waterproof, dustproof and moisture-proof performance, adapting to complex and changeable outdoor working environments. It can operate stably for a long time without frequent maintenance, with strong environmental adaptability and long service life.
4.4 Flexible Pole-Mounted Installation & Wide Applicability
Equipped with standardized dedicated mounting brackets and reserved wiring interfaces, this single phase pole mounted transformer supports fast installation on various specification utility poles. The overhead installation method saves valuable land resources, eliminates the need for foundation pouring and indoor space layout, and greatly shortens on-site construction cycle. The compact and lightweight structure is convenient for transportation and hoisting, suitable for various rural, suburban and street decentralized power distribution scenarios.
4.5 High Safety & Low Maintenance Cost
Optional CSP self-protected design integrates overload, overcurrent and lightning surge protection functions, which can automatically cut off faulty circuits when grid abnormalities occur, protecting terminal equipment and line safety. The fully sealed structure avoids insulating oil deterioration, leakage and dust accumulation, requiring almost no daily routine maintenance. The stable internal structure has low failure rate in long-term operation, greatly reducing later operation and maintenance workload and comprehensive engineering cost.
5. Frequently Asked Questions (FAQ)
5.1 How to select the correct capacity among 5kva to 250kva for different scenarios?
For single remote households and independent small equipment with low power consumption, 5kva and 10kva small-capacity models are the most cost-effective choice. For conventional rural households and small agricultural equipment power supply, 37.5kva and 75kva medium-capacity transformers are recommended. 100kva and 167kva specifications are suitable for multi-household residential clusters and street small commercial scenarios with medium concentrated loads. The 250kva large-capacity model is specially used for large-area rural centralized power supply and suburban grid upgrading projects with high load density. Scientific capacity selection can ensure stable operation and extend transformer service life.
5.2 What are the core advantages of single phase pole mounted transformers compared with three-phase transformers?
Single phase pole mounted transformers are targeted at scattered single-phase power supply scenarios, with simpler structure, lower procurement cost and faster installation speed than three-phase distribution transformers. They are more suitable for rural households, agricultural facilities and small commercial loads that do not require three-phase power. With diversified capacity options from 5kva to 250kva, they can achieve more refined load matching, effectively avoiding resource waste. Meanwhile, the overhead installation method is more adaptable to decentralized rural power grid layouts, making it the mainstream equipment for rural electrification projects.
5.3 Does this series of oil-immersed pole transformers require regular daily maintenance?
This full-range single phase pole mounted transformer adopts fully sealed oil-immersed structure, which isolates internal windings and insulating oil from external air and dust. Under normal operating conditions, it does not need frequent oil replacement and daily maintenance. Users only need to conduct regular visual inspections of pole mounting firmness and line connection status. The optional self-protected structure further reduces on-site failure risks, featuring low maintenance cost and high operational reliability for long-term outdoor unattended operation.
