• Product advantages
• Product parameters
• Ordering instructions

Product advantages

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1. Advanced Winding & Magnetic Circuit Technology

2. Precision-Manufactured Durable Shell

Precision CNC and laser processing ensure strict shell dimensional accuracy. ABB robotic automatic welding and full laser inspection deliver a 99.99998% leakage-proof pass rate. The electrostatic sprayed coating features 50-year durability and outstanding corrosion resistance. Equipped with ANSI-standard pressure relief valve and NEMA mounting brackets, the fully sealed structure enables tool-free maintenance and a 30+ year service life.

3. Premium Core & Winding Materials, Reliable Insulation

Adopting high-grade Baosteel & Wisco silicon steel sheets, the iron core achieves low loss and low noise. High/low voltage windings use premium copper wires with professional cable paper and polyurethane enamel insulation. Interlayer adhesive paper integrates coils as a whole, delivering superior insulation performance and structural stability against vibration and extrusion during operation and transportation.

4. High-Grade Auxiliary Materials & Complete Safety Configuration

All core materials are sourced from reputable suppliers, including high-purity anaerobic copper and CNPC Kunlun premium transformer oil for stable conductivity and heat dissipation. Equipped with high-strength bushings, full-copper tinned terminals, built-in current-limiting fuses and surge arresters, the transformer provides comprehensive safety protection and stable long-term operation.

Why Choose Hengfengshuai Electric’s  25 kva Single-Phase Pole Mounted Transformer?

Hengfengshuai Electric is a professional distribution transformer manufacturer with 30 years of industry experience. We specialize in the R&D and production of single-phase pole-mounted transformers, with mature production workflows and strict full-process quality control systems, accumulating rich experience in global power distribution projects.
Different from ordinary manufacturers, we adopt independent core technology, high-standard raw material selection and intelligent precision production. All products comply with IEEE, ANSI and IEC international standards, featuring high efficiency, energy saving, strong environmental adaptability and durability. Our maintenance-free design effectively reduces customers’ long-term operation and maintenance costs.
We support customized voltage specifications and bulk standardized supply. Driven by quality-first and customer-oriented principles, we provide reliable products and professional after-sales service. Our single-phase pole-mounted transformers have gained worldwide recognition and are widely used in urban and rural grid renovation and overhead power distribution projects.

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