25kVA Single Phase Pole Mounted Transformer 6900V To 120V ANSI/IEEE Standards Oil Filled Distribution Transformers

Price	$1000-$10000
MOQ	1unit
Delivery Time	30days
Brand	WINLEY
Place of Origin	CHINA
Certification	UL,cUL,CE,ISO
Model Number	D-25/10
Packaging Details	Plywood case
Payment Terms	T/T
Supply Ability	5000set/month

Product Details

Product Specification

Place of Origin	CHINA	Phase	Single Phase
Winding Material:	Copper	Packaging Details	Plywood case
Secondary Voltage	120V (L-N)	Model Number	D-25/10
Secondary BIL	30 KV	Supply Ability	5000set/month
Certification	UL,cUL,CE,ISO	capacity	25 KVA
Brand Name	WINLEY	Payment Terms	T/T
Type	Overhead Distribution Transformer, Conventional Type	Temperature Rise	65°C
Price	$1000-$10000	Delivery Time	30days
Minimum Order Quantity	1unit	Cooling Class	ONAN; Self-Cooled
Efficiency Standard(s)	Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards	Frequency	60 Hz
Primary Voltage	6900V	Primary BIL	75 kV

Product Description

25kVA Single Phase Pole Mounted Transformer 6900V Delta To 120V ANSI/IEEE Standards

Winley Electric 25kVA single-phase pole-mounted transformer is UL/cUL certified, engineered to meet ANSI/IEEE and DOE 2016 efficiency standards for reliable overhead power distribution in North America.

This liquid-filled, conventional-type unit steps down 6900V delta primary voltage to 120V secondary power, featuring a 5-position external tap changer, ONAN self-cooling, and high-purity copper windings. Equipped with non-PCB mineral oil insulation and dedicated lightning arrester mounting provisions, it delivers durable, low-maintenance performance for residential, rural, and small commercial applications.

Production Photo

Technical drawings

Key Feature

25kVA Compact Overhead Distribution

Single-phase pole-mounted design steps down 6900V Delta primary to 120V secondary, ideal for residential, rural, and small commercial utility networks.

Full North American Compliance

UL/cUL certified, fully meeting ANSI/IEEE and DOE 2016 efficiency standards for utility-grade safety and performance.

Robust Liquid-Filled Construction

Conventional-type overhead design with ONAN self-cooling, built to withstand harsh outdoor weather and extreme temperature conditions.

Precise External Voltage Regulation

5-position tap changer with external operating handle (2.5% tap range) for easy, on-site voltage adjustment.

Premium Copper Windings

High-purity copper windings with Ii6 vector group for low loss, high efficiency, and long-term reliability.

Flexible Installation Design

Dedicated mounting provisions for lightning arresters, compatible with both copper and aluminum conductors for simplified field installation.

Applications

This 25kVA single‑phase pole‑mounted transformer is engineered for reliable overhead power distribution in North American utility, residential, and small commercial systems. Typical applications include:

Rural residential neighborhoods, small housing developments, and remote home power supply
Agricultural operations, small farm irrigation systems, and rural electrification projects
Small commercial facilities, retail stores, community buildings, and street lighting systems
Utility overhead distribution networks and temporary power installations

Specifications

Rated Capacity (kVA)	High voltage (kV)	No Load Loss (W)	On load Loss (W)	Height (mm)	Depth (mm)	Width (mm)	Weight (kg)
Rated Capacity (kVA)	High voltage (kV)	No Load Loss (W)	On load Loss (W)	Height (mm)	Depth (mm)	Width (mm)	Weight (kg)
15 kVA	34.5/19.92 13.8/7.96 13.2/7.6 12.47/7.2 or others	50	195	840	740	610	294
25 kVA		80	290	840	740	610	362
37.5 kVA		106	360	840	760	610	476
50 kVA		135	500	840	810	610	553
75 kVA		190	650	840	860	610	672
100 kVA		280	1010	910	1200	965	714
167kVA		435	1530	1000	1200	965	913
250 kVA		550	2230	1250	1300	1430	1106

Rigorous Quality Testing

Every WINLEY transformer undergoes a full suite of rigorous factory tests to ensure compliance with ANSI/IEEE, DOE 2016, and CSA standards, guaranteeing long-term reliability and safety:

Winding Resistance Test: Verifies winding integrity and material consistency
Insulation Resistance Test: Ensures reliable insulation performance to prevent breakdown
Voltage Ratio Error Test: Confirms accurate voltage transformation per design specifications
Applied & Induced Voltage Withstand Tests: Validates dielectric strength under overvoltage conditions
No-Load & Load Loss Tests: Measures iron and copper losses to meet DOE 2016 efficiency requirements
Short-Circuit Impedance Test: Assesses short-circuit withstand capability for grid safety
Seal Test: Guarantees leak-proof tank construction for outdoor operation