75kVA 1 Phase Pole Mounted Transformer 4.16kV 120V Quiet Pole Distribution
Leilang Electric's 75kVA single phase distribution transformer is professionally engineered for reliable 4.16kV to 120V voltage conversion, featuring two core competitive advantages: comprehensive safe protection and ultra-quiet operation. Fully compliant with ANSI, IEEE, IEC, and DOE standards, it meets strict reliability and safety requirements, making it ideal for residential communities, commercial buildings, public facilities, and light industrial distribution scenarios.
Equipped with multi-layer safety protection mechanisms, it effectively prevents short circuits, overloads, overvoltage, and insulation failures, ensuring the safety of equipment and personnel. Its optimized structural design and low-noise core technology minimize operating noise to below 50dB, making it perfectly suitable for noise-sensitive areas such as residential districts, hospitals, and office parks.
| 10kva-500kva Single-phase oil immersed transformer | ||||||
| Rated Cap acity(kVA) | High | Low Voltage(v) | Connection Symbol | Standard | Short-circuit impedance(%) | Efficiency |
| Voltage(v) | (%) | |||||
| 10 | 4160 7200 12000 12470 13200 13800 19920 24940 34500 |
110 220 230 400 480 |
II0,II6 | IEEE/ANSI/ DOE/CSA | 1.0-4.5% | 98.7 |
| 15 | 98.82 | |||||
| 25 | 98.95 | |||||
| 37.5 | 99.05 | |||||
| 50 | 99.11 | |||||
| 75 | 99.19 | |||||
| 100 | 99.25 | |||||
| 167 | 99.33 | |||||
| 250 | 99.39 | |||||
| 333 | 99.43 | |||||
| 500 | 99.49 | |||||
Integrated with multiple safety protection components to eliminate potential operational risks: built-in high-voltage current-limiting fuse, low-voltage circuit breaker, and overvoltage protection device, which automatically trip to cut off power in case of short circuit, overload, or overvoltage, preventing transformer burnout and equipment damage.
The fully sealed oil-immersed structure is equipped with a pressure relief valve to release internal pressure in case of abnormal temperature rise, avoiding tank deformation or leakage. High-creepage porcelain bushings with anti-pollution and anti-rain flashover design enhance insulation safety, while an anti-biological protection cover prevents small animals from entering and causing short circuits.
Adopts high-quality cold-rolled oriented silicon steel core with step-lapped lamination technology and special noise reduction treatment, minimizing hysteresis and eddy current noise generated during operation. The winding is fixed with shock-absorbing insulation materials to reduce vibration noise, and the tank is filled with low-noise insulation oil to further dampen sound transmission.
The overall operating noise is controlled below 50dB, which is equivalent to the sound of normal conversation, ensuring no interference to surrounding environments—ideal for noise-sensitive areas.
Optimized winding turns ratio and precision winding process ensure accurate voltage conversion from 4.16kV high voltage to 120V low voltage, with excellent load regulation performance. Even under fluctuating loads, it maintains stable output voltage, avoiding voltage surges or drops that damage electrical equipment, and meeting the power demand of single-phase distribution systems.
Designed with 75kVA rated capacity, it is suitable for medium-scale power distribution scenarios, capable of supporting continuous operation of multiple electrical devices in residential communities, commercial complexes, and light industrial facilities. It has strong overload capacity, able to withstand 120%-150% short-term load impact, adapting to the peak power demand of distribution systems.
Designed for direct mounting on standard utility poles, with pre-installed brackets and clearly labeled terminals for quick on-site installation. The compact structure saves space, requires no large-scale civil engineering, and is suitable for various distribution network scenarios, including urban and rural areas.
| Item | Value |
|---|---|
| Rated Capacity | 75kVA |
| High Voltage | 4160V |
| Low Voltage | 120V (customizable to 120/240V split-phase) |
| Efficiency | ≥99.19% |
| Cooling Type | ONAN (Oil-Immersed Self-Cooled) |
| Operating Temp Range | -40°C ~ +55°C |
| Operating Noise | ≤50dB |
| Standards | ANSI, IEEE, IEC, DOE |
- Comprehensive Safe Protection - Built-in multiple protection mechanisms (short circuit, overload, overvoltage) to ensure the safety of equipment and personnel, complying with strict industrial safety standards.
- Ultra-Quiet Operation - Noise ≤50dB, suitable for noise-sensitive areas such as residential districts, hospitals, and office parks, ensuring a comfortable environment.
- 75kVA Stable Capacity - Ideal for medium-scale single-phase distribution, supporting continuous operation of residential, commercial, and light industrial loads.
- Precise 4.16kV/120V Conversion - Stable voltage output, avoiding fluctuations and protecting connected electrical equipment.
- High Efficiency & Durability - Low-loss design and fully sealed structure ensure long service life and low operating costs, complying with global energy-saving standards.
- Residential communities, high-rise buildings, and villa districts requiring quiet and safe power supply.
- Public facilities such as hospitals, schools, office buildings, and shopping malls (noise-sensitive areas).
- Light industrial facilities, small workshops, and commercial stores with medium-scale power demand.
- Urban and rural single-phase power distribution networks, street lighting, and landscape power systems.
- Noise-sensitive projects such as nursing homes, cultural centers, and residential supporting facilities.
This 75kVA single phase distribution transformer is produced under the ISO 9001 quality management system, with each unit undergoing strict factory testing (no-load test, load test, withstand voltage test, insulation test, and noise test) before delivery. It fully complies with ANSI, IEEE, and DOE standards, meeting the safety and efficiency requirements of global distribution projects.
We provide customized voltage configurations (such as 120/240V split-phase) and accessory options, along with professional technical support and 24-hour after-sales service. Spare parts supply and on-site maintenance services ensure stable operation throughout the product's long service life, minimizing downtime and maximizing user benefits.
It is equipped with comprehensive safety protection, including built-in high-voltage current-limiting fuse, low-voltage circuit breaker, overvoltage protection, pressure relief valve, and anti-biological protection cover. These components automatically respond to short circuits, overloads, overvoltage, and other abnormalities to cut off power and prevent equipment damage or safety hazards.
The transformer adopts noise reduction design, with operating noise controlled at ≤50dB, which is equivalent to the sound of normal conversation. It will not cause noise interference to surrounding environments, making it suitable for residential areas, hospitals, and other noise-sensitive places.
It is specifically designed for 4.16kV high voltage input and 120V low voltage output, which is perfectly matched with single-phase power distribution systems. We also support customization to 120/240V split-phase to meet different project requirements.
Yes. The 75kVA capacity is ideal for medium-scale scenarios, such as residential communities, office buildings, shopping malls, and small workshops, which can stably support the power demand of multiple electrical devices.
Absolutely. The noise reduction design (low-noise core, shock-absorbing insulation, and low-noise oil) ensures that the operating noise remains ≤50dB even under full load, maintaining a quiet environment.
When a short circuit, overload, or overvoltage occurs, the built-in fuse and circuit breaker will automatically trip to cut off the power supply; if the internal temperature rises abnormally, the pressure relief valve will release pressure to avoid tank damage, comprehensively protecting the transformer and connected equipment.
Yes. It adopts a fully sealed oil-immersed structure with anti-corrosion coating and weatherproof bushings, which can withstand rain, salt spray, extreme temperatures, and other outdoor environments, ensuring stable operation.
Yes. We support customization of primary and secondary voltages, such as adjusting the low voltage to 120/240V split-phase, to meet the unique voltage requirements of different distribution projects.
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