Single Phase Pole Mounted Transformer 34.5Kv to120V/240V

Single Phase Pole Mounted Transformer 34.5Kv to120V/240V

1. Technical Parameter

2. Product Description

Single Phase Pole Mounted Transformer 34.5Kv to120V/240V is a high-voltage oil immersed single-phase distribution transformer customized for North American and international 34.5kV overhead power grid systems. As a professional outdoor pole-mounted power conversion device, this high-voltage single-phase transformer solves the voltage conversion pain point of ultra-high medium-voltage power grids, stably stepping down 34.5kV high-tension line power to standard 120V/240V split-phase low voltage that meets civil and small commercial power consumption standards.

Manufactured with premium CRGO silicon steel core and high-conductivity oxygen-free copper windings, this 34.5kV pole mounted transformer minimizes magnetic flux leakage and idle power loss, achieving industry-leading energy-saving performance that fully complies with DOE energy efficiency regulations. Adopting classic ONAN passive oil cooling technology, the internal insulating mineral oil or environmentally friendly ester oil circulates naturally to dissipate heat evenly, ensuring stable thermal balance even during long-term full-load standby and continuous operation. The fully sealed welded steel tank undergoes multi-layer anti-corrosion and weather-resistant spraying treatment, effectively resisting outdoor rain erosion, ultraviolet aging, frost and wind impact.

This 34.5kV to 120/240V step-down transformer supports flexible no-load voltage tap adjustment to adapt to regional grid voltage deviation and seasonal load fluctuations. The dual low-voltage output design can independently supply 120V low-power voltage and 240V high-power voltage, covering diverse terminal power consumption needs. All finished oil immersed distribution transformers pass strict factory tests including lightning impulse withstand test, power frequency voltage resistance test, temperature rise detection and short-circuit impact test. With compact pole-mounted structure, high insulation safety and low failure rate, this single-phase power transformer is the core supporting equipment for high-voltage remote power distribution and scattered load power supply projects.

3. Core Product Features

3.1 High Voltage Withstand & Superior Insulation Performance

Equipped with 150kV ultra-high basic insulation level, this 34.5kV single phase pole mounted transformer has excellent lightning strike resistance and grid surge tolerance. It can stably cope with instantaneous voltage impact and abnormal grid fluctuations in high-voltage power distribution networks, effectively avoiding insulation breakdown and equipment burnout. The high-grade insulating oil and compact winding isolation structure ensure long-term stable insulation performance in complex outdoor environments, greatly improving the safety and reliability of high-voltage power distribution systems.

3.2 Dual Split-phase Voltage Output & Strong Adaptability

Different from single-voltage output transformers, this oil immersed pole transformer provides 120V and 240V dual independent output. The 120V voltage is suitable for household lighting, small electronic devices and low-power socket loads, while the 240V output matches high-power equipment such as household air conditioners, water heaters and small commercial machinery. The flexible dual-voltage design perfectly fits North American standard power supply modes, realizing one machine for multiple purposes and improving the utilization rate of power distribution equipment.

3.3 Low Loss Energy-saving & Eco-friendly Operation

Optimized core lamination technology and high-purity copper winding layout greatly reduce no-load loss and load operation loss, meeting international energy-saving and emission reduction standards. Optional FR3 environmentally friendly ester oil replaces traditional mineral oil, achieving non-toxic, pollution-free and fire-resistant operation, which is more suitable for ecological protection areas and densely populated residential areas. Long-term low-power-consumption operation effectively reduces grid operation costs and user electricity expenses, with outstanding economic and environmental benefits.

3.4 Excellent Outdoor Weather Resistance & Structural Stability

Designed exclusively for overhead pole-mounted installation, the fully sealed integrated tank structure features waterproof, dustproof, anti-rust and anti-ultraviolet properties. It can operate stably in extreme temperatures from -30℃ to +45℃ and resist strong wind speeds up to 35m/s, adapting to harsh outdoor working conditions such as mountainous areas, coastal zones and rural open environments. The reinforced mechanical structure enhances short-circuit impact resistance and seismic performance, ensuring stable operation in unattended outdoor scenarios all year round.

3.5 Easy Installation & Minimal Maintenance

The lightweight compact body supports fast pole hoisting and installation, with simple on-site wiring and short construction cycle. The fully enclosed oil immersed design avoids frequent insulating oil replacement and daily trivial maintenance. Optional CSP fully self-protected structure integrates overcurrent, overvoltage and overload protection functions, realizing automatic fault protection without additional external protection devices. Daily operation only requires regular visual inspection, greatly reducing later operation and maintenance labor and equipment management costs.

4. Core Purpose & Application Scenarios

4.1 Core Purpose

The core function of Single Phase Pole Mounted Transformer 34.5Kv to120V/240V is to complete safe and efficient step-down conversion from 34.5kV high-voltage overhead grid power to standard 120V/240V single-phase low-voltage power. As a key terminal power distribution device in high-voltage single-phase power systems, it undertakes decentralized power distribution, voltage stabilization, electrical isolation and power loss reduction tasks. It solves the problem of voltage mismatch between long-distance high-voltage transmission lines and terminal civil and commercial equipment, ensuring stable, safe and energy-saving terminal power supply for scattered small-load scenarios.

4.2 Typical Application Scenarios

Remote Rural & Mountainous Area Power Supply: Widely used for electrification projects in remote villages, mountainous residential areas and pastoral areas covered by 34.5kV high-voltage grids. It solves the problems of long-distance power transmission loss and unstable terminal voltage in remote areas, realizing stable civil power supply for scattered rural households.

North American Standard Residential Power Distribution: Ideal for suburban villa clusters, single-family independent residences and rural residential communities in North American power grid areas. The 120/240V dual output fully conforms to local power supply standards, meeting the mixed power consumption demand of household low-power and high-power electrical equipment.

Outdoor Remote Equipment Power Supply: Suitable for field communication base stations, outdoor monitoring systems, scenic spot service facilities, highway roadside equipment and meteorological monitoring stations. The weather-resistant and unattended design adapts long-term outdoor operation, providing continuous and reliable power guarantee for remote terminal equipment.

Small Commercial & Field Operation Scenarios: Applied to remote small shops, field construction temporary power distribution points, gas stations and mini service outlets. It provides safe and standardized single-phase power support for small commercial loads and temporary engineering equipment, with flexible installation and strong scene adaptability.

High-voltage Grid Terminal Matching & Renovation: Used for upgrading old high-voltage power distribution equipment in 34.5kV grid systems, replacing outdated high-loss transformers, improving terminal power supply quality and grid operation efficiency, and optimizing the overall structure of regional high-voltage power distribution networks.

5. FAQ (Frequently Asked Questions)

5.1 What are the unique advantages of a 34.5kV pole mounted transformer compared with conventional 13.8kV single-phase transformers?

This 34.5kV high-voltage single phase pole mounted transformer is designed for long-distance high-voltage power transmission scenarios that conventional medium-voltage transformers cannot adapt to. The 34.5kV higher input voltage effectively reduces current and power loss during long-distance overhead line transmission, greatly expanding the power supply coverage radius of a single power distribution point. Compared with 13.8kV models, it features higher insulation grade, stronger lightning resistance and more stable operation in remote and complex grid environments. It is the preferred equipment for long-distance power supply in mountainous, pastoral and remote rural areas, with more outstanding power supply economy and coverage advantages.

5.2 What is the difference between CSP self-protected type and conventional type of this 34.5kV oil immersed transformer?

The conventional 34.5kV to 120/240V pole transformer requires external matching overload and short-circuit protection devices, suitable for centralized substation management scenarios. The optional CSP completely self-protected model integrates built-in overcurrent protection, overload protection and temperature protection modules, which can automatically cut off power supply in case of grid faults or equipment overload, avoiding equipment burnout and power supply accidents. The CSP type eliminates the need for additional auxiliary protection equipment, simplifies on-site installation and wiring, and is more suitable for unattended outdoor pole-mounted operation scenarios with higher safety requirements.

5.3 How to carry out daily maintenance for outdoor long-term operation of this high-voltage single-phase transformer?

This fully sealed oil immersed pole transformer has low daily maintenance pressure for outdoor operation. Daily routine work only includes visual inspection to check for tank oil leakage, shell corrosion and loose high-low voltage terminals, and ensuring no debris blocks the heat dissipation area. It is recommended to test the dielectric strength and water content of insulating oil every 3 to 5 years, and conduct a comprehensive insulation performance test and electrical parameter calibration every 5 years. Avoid long-term overload operation and operation beyond the rated temperature and altitude limit. Standard regular inspection can effectively maintain stable operation and extend the 30-year design service life of the equipment.