Name: China Customized 3 Phase Overhead Transformer Manufacturers Suppliers Factory - Good Price - Transpower
Brand: Trans
SKU: 246724683

Transpower Electrical Equipment Co., Ltd. is one of the most reliable manufacturers and suppliers of 3 phase overhead transformer in China. Welcome to buy high quality customized products at competitive price from our factory. Contact us for quotation.

3 Phase Overhead Transformer

3 phase overhead transformer Description

3-phase overhead transformer is a vital component in power distribution systems, designed to step down high-voltage electricity from transmission lines to a lower voltage suitable for industrial, commercial, and residential use. Mounted on utility poles, these transformers are particularly efficient in delivering balanced power across three phases, ensuring stable and reliable energy supply for large-scale applications. Typically, they are oil-filled, which provides effective insulation and cooling to the internal components, thereby enhancing durability and performance in various environmental conditions. The transformer consists of three primary and three secondary windings, each corresponding to one of the three phases, and a laminated core to reduce energy losses. The 3-phase configuration allows for the transmission of large amounts of power with minimal voltage drop and improved efficiency over long distances. This makes them essential in areas requiring high power density, such as factories, commercial buildings, and large residential complexes. With their robust construction and ability to handle significant loads, 3-phase overhead transformers are a cornerstone in modern electrical infrastructure.

Pole Mounted Transformer

Key attributes
Industry-specific attributes
Product	Single Phase Oil Filled Pole Mounted Transformer
Phase	Single
Coil Number	Autotransformer
Other attributes
Place of Origin	Zhejiang, China
Model Number	Single phase transformer
Rated capacity	From 10kva to 333kva
High Voltage	34.5kV and below
Low Voltage	120/240/277/480V
Frequency	50/60Hz
Standard	IEC, ANSI, IEEE, CSA
Vector group	Ii0, Ii6
Material	Aluminum/Copper
Application	Rural power grid, Remote mountainous areas, scattered villages, Agricultural production, lighting, Power consumption, Railway, Urban power grid
Type	Oil-immersed Transformer
Feature	Low Loss

The following table is the standard parameter of the conventional pole mounted transformer. If you need other capacity and voltage levels, please contact the TRANSpower to obtain accurate technical parameters and offers.

Below specs are ONLY For Reference.

CAPACITY (kVA)	η(%)	ε(%)	Io(%)	CORE LOSS (W)	COPPER LOSS (W)	DIMENSION(MM)			OIL (L)	TOTAL W.T (kg)
CAPACITY (kVA)	η(%)	ε(%)	Io(%)	CORE LOSS (W)	COPPER LOSS (W)	W	D	H	OIL (L)	TOTAL W.T (kg)
10	97.2	3	1.9	45	180	440	520	940	30	100
15	97.3	3	1.8	58	215	450	530	970	30	130
25	97.5	2.8	1.7	82	295	500	580	980	40	180
37.5	97.7	2.6	1.6	110	400	520	600	1000	40	220
50	98.1	1.9	1.5	140	490	540	630	1060	45	280
75	98.2	1.8	1.4	200	700	590	670	1100	55	380
100	98.3	1.7	1.3	260	900	680	680	1120	60	450
167	98.4	1.6	1.2	450	1500	710	800	1190	80	580
250	98.5	1.5	1.1	650	2250	980	950	1350	215	980
333	98.6	1.4	1	800	3000	1040	960	1400	240	1100

Test Item

√ Winding Resistance Test

√ Insulation Resistance Test

√ Voltage Ratio Error Test

√ Short-circuit Impedance Test

√ No-load Loss (Wattage) Test

√ Load Loss (Wattage) Test

√ Induced Voltage Withstand Test

√ Separate Source Voltage Withstand Test

√ Pressure Integrity Test Test

25kVA Single Phase Oil Filled Pole Mounted transformer dimensions and weight details

product-750-528

75kVA Single Phase Oil Filled Pole Mounted transformer dimensions and weight details

product-750-527

167kVA Single Phase Oil Filled Pole Mounted transformer dimensions and weight details

product-750-528

Single Phase Oil Filled Pole Mounted transformer Diagram

product-750-635

Pole Mounted Transformer Pictures

Pole Mounted Transformer Packaging

product-750-562

Frequently Asked Questions (FAQ)

Q: How are pole-mounted transformers installed?

A: Pole-mounted transformers are typically installed on wooden or metal utility poles. The installation process involves:Mounting: The transformer is hoisted and secured onto the pole using metal brackets.Wiring: The primary side of the transformer is connected to the high-voltage distribution lines, and the secondary side is connected to the lower-voltage lines that supply electricity to end users.Grounding: Proper grounding is essential to prevent electrical faults and ensure safety.

Q: What materials are used in pole-mounted transformers?

A: Core: Made of laminated grain-oriented silicon steel to minimize energy losses.Windings: Usually made of copper or aluminum, insulated with materials like enamel or paper.Tank: Made of steel, coated to resist corrosion and protect the internal components.Insulating Oil: Mineral oil is commonly used for cooling and insulation in liquid-filled transformers.

Q: How do pole-mounted transformers handle temperature and cooling?

A: Pole-mounted transformers rely on natural air cooling or oil cooling, depending on the type:Air-Cooled (Dry-Type): These transformers dissipate heat into the air, relying on convection. They are generally used in smaller or less demanding applications.Oil-Cooled (Liquid-Filled): The oil circulates within the transformer, absorbing heat from the core and windings. The heated oil then transfers this heat to the walls of the tank, where it is dissipated into the surrounding air.

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