• Product advantages
• Product parameters
• Ordering instructions

Product advantages

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Core Product Advantages & Advanced Technology

Adopting industry-leading manufacturing technology and structural design, our 50KVA single-phase distribution transformers outperform conventional products of the same specification in lightning resistance, short-circuit resistance, operational stability, and service life, perfectly meeting the standard operating conditions of 50KVA power distribution.

Optimized Winding Technology

Equipped with exclusive optimized winding technology, the transformer features extremely low magnetic leakage and high mechanical strength, greatly improving lightning resistance and short-circuit resistance to ensure safe and stable operation in complex outdoor power grid environments. The iron core adopts a 45° full oblique joint step-laminated structure, which effectively reduces operating loss, vibration, and noise while improving overall power conversion efficiency.

High-Precision Fully Sealed Shell Structure

To guarantee superior quality and long-term durability, the transformer shell is processed with sophisticated industrial and intelligent manufacturing techniques. We adopt Mitsubishi laser cutting machines, CNC punching and bending equipment to achieve micron-level processing accuracy. All welding procedures are completed by ABB automatic welding robots with full laser inspection, achieving a product qualification rate of 99.99998% and zero welding leakage.
The shell is treated with professional electrostatic spraying, providing a 50-year anti-corrosion coating lifespan. The coating passes 100-hour salt spray corrosion resistance tests with a surface hardness of ≥0.4. The transformer adopts a cylindrical fully sealed structure equipped with an ANSI-standard self-sealing manual pressure relief valve and standard NEMA hanger brackets (each unit is fitted with a pole support plate). The fully sealed maintenance-free design ensures a service life of over 30 years under normal operating conditions.

Low-Loss High-Efficiency Iron Core

The iron core is made of high-quality grain-oriented cold-rolled silicon steel sheets with mineral oxide insulation, sourced from top-tier domestic manufacturers including Baosteel and Wisco. By precisely controlling the cutting and stacking process of silicon steel sheets, we minimize no-load loss, no-load current, and operating noise, realizing energy-saving and high-efficiency power operation and reducing long-term operational costs for customers.

High-Reliability Insulation Winding Design

All windings are manufactured with premium materials to ensure excellent insulation performance and structural stability. Low-voltage windings adopt high-quality cable paper covered wires, while high-voltage windings adopt high-quality polyurethane enameled round copper wires. Interlayer dot adhesive paper bonding integrates the coils into a fixed integral unit with excellent insulation resistance. This professional winding structure effectively prevents coil deformation and damage during long-term operation and long-distance transportation, ensuring stable and reliable overall transformer structure.

Premium Raw Materials & Strict Quality Control System

To maintain top-tier product performance, all core raw materials are sourced from reputable brand suppliers with stable quality and certified performance:

- Silicon Steel Sheet: High-quality genuine materials from Baosteel and Wisco

- Conductor Material: High-quality domestic oxygen-free copper

- Transformer Oil: CNPC Kunlun 25# high-grade dedicated transformer oil

Complete Configuration & Operational Safety Assurance

Our single-phase pole-mounted transformers come with complete standard protective configurations to enhance operational safety and environmental adaptability. Optional accessories include high-strength polymer low-voltage bushings and high & low voltage porcelain bushings. Each unit is equipped with full-copper tinned ring terminals, current-limiting fuses, and lightning arresters. The comprehensive safety configuration effectively prevents damage caused by overcurrent, lightning strikes, and grid fluctuations, ensuring long-term safe and stable operation of outdoor power distribution equipment.
 

Why Choose Hengfengshuai Electric 50KVA Single-Phase Pole Transformer?

With 30 years of dedicated experience in transformer manufacturing, Hengfengshuai Electric specializes in producing high-standard 50KVA single-phase pole-mounted distribution transformers and full-series single-phase power distribution equipment. Complying with IEEE, ANSI, and IEC international standards, our 50KVA models feature energy efficiency, low noise, corrosion resistance, maintenance-free performance, and ultra-long service life. Supporting standard and customized voltage specifications, our transformers are widely applied in urban and rural grid renovation, outdoor overhead power distribution, residential community power supply, and small industrial & commercial power distribution scenarios. We deliver cost-effective, high-reliability power transmission and distribution solutions for global clients.

Product parameters

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  - Input volt：34.5kv-19.92kv/13.8kv-7.957kv/13.2kv-7.62kv/12.47kv-7.2kv or others
  - Output volt： 120-240/240-480/347/600V or others
  - Capacity：20-160KVA,The maximum voltage is 36kV and the maximum capacity is 315KVA
  - Remark：Voltage, capacity, frequency, connection group and loss can be customized according to customer requirements

Tachnical Data for Single-Phase Pole Mounted Distributation Transformer
Power (KVA)	High Voltage (V)	Low Voltage (V)	Loss(W)		Dimension  (mm)			Weight  （kg）
			No-load Loss	On-load Loss	W	D	H
5kva	34500/ 19920 13800/ 7957 13200/ 7620 12470/ 7200 or others	120-240       240-480         347 600	19	75	465	485	855	92
10kva			36	120	500	525	885	150
15kva			50	195	520	565	905	210
25kva			80	290	560	590	935	258
37.5kva			105	360	610	625	935	340
50kva			135	500	635	675	1035	395
75kva			190	650	745	840	1035	480
100kva			210	850	770	965	1135	530
167kva			350	1410	795	890	1335	680

 

Ordering instructions

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- Main parameters of transformer (voltage, capacity, loss and other main parameters) 
 - Transformer use environment (altitude, temperature, humidity, place, etc.) 
 - Other customized requirements (tap switch, color, oil pillow, etc.) 
 - The minimum order quantity is 1 set, global delivery within 7 days 
  - The normal delivery period is 30 days, with fast delivery worldwide