What is a Distribution Transformer?

Unlike a power transformer, distribution transformers serve for circulation purposes. Such equipment will, therefore, bring down (step down) the voltage and incidental level of a power transmission line to a predetermined scale. This predefined level is also referred to as the end-user safety level, either for domestic consumers or for industrial purposes. Though similar in stature to a power transformer, a distribution transformer's voltage range varies between 33kV to 430V.

Three Phase High Quality Oil-Immersed Distribution Transformers -Cu-Al Winding 12.47kv for Office Lighting

Name: Three Phase High Quality Oil-Immersed Distribution Transformers -Cu-Al Winding 12.47kv for Office Lighting
Brand: Zhejiang Dahu Electric Co., Ltd.
SKU: 2235278395

Zhejiang, ChinaZhejiang Dahu Electric Co., Ltd.

US$50.00

1 Piece

Product profile

Application

Electronic, Instrument

Type

Con Type & Csp Type

Phase

Three

Model NO.

TPOI-distribution transformers

Operation Condition

Outdoor

Usage

Protection, Measurement

Winding Form

Other

Insulating Medium

Other

Installation

Other

Magnetic Circuit Structure

Other

Voltage Transformation Principle

Electromagnetic Type

Applicable Standard

ANSI C57.12.20

Frequency

60Hz /50Hz

Core

C.R.G.O Core

Winding

Cu-Cu; Cu-Ai ; Ai-Ai

Product Scope

kVA: 15-75kVA

Name

Three-Phase Oil-Immersed Distribution Transformers

MOQ

1 Piece

Warranty

1 Year/12 Months

Hv

12-13.2/23kv

LV

400V

Transport Package

Wooden

Specification

GB/T20840, ISO9001, IEEE, IEC

Trademark

DAHU

Origin

China

HS Code

850431

Production Capacity

8000PCS/Mouth

Key features

High Efficiency Design: Utilizes high permeability silicon steel sheets and optimized winding structure for low losses.

Safe and Reliable Operation: Core and windings immersed in oil for excellent insulation, heat dissipation, and moisture isolation.

Compact and Lightweight: Features corrugated fin or tube radiators to save installation space and facilitate transport.

Strong Overload Capacity: Capable of withstanding short-term overload operations to adapt to network load fluctuations.

Low Noise Level: Adopts stepped joints and special clamping structures for quiet operation.

Wide Voltage Range: Voltage range varies between 33kV to 430V suitable for various distribution networks.

Flexible Customization: Offers full, minor, and flexible customization from samples or designs.

Comprehensive Warranty: Includes a 1-year warranty covering mechanical defects.

Company profile

Years of Export Experience

Zhejiang Dahu Electric Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 17 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.80h

AI-Powered supplier vetting

SummaryDaHu Electric demonstrates broad customization, 3D design, ODM, OEM, and SDK-related capabilities, supported by stated R&D and technical personnel. It operates three production lines, reports transformer output of 500,000 sets annually, and states lead times of within 15 working days in both peak and off-peak seasons. Service processes, corrective/preventive actions, complaint handling, finished-product inspection, and subcontractor contracts are documented and followed. The supplier has inventory capability and export experience of 17 years, with Europe among its export markets. However, the provided information does not establish certifications, customer case references, or a complete assessment of after-sales execution. The supplier also states that it had no new products during the past year, which limits evidence of recent innovation activity. Overseas warehouse and showroom capabilities are explicitly unavailable.

Supplier typeThe supplier provides manufacturing and design-related services, including 3D software design, customization, ODM, and OEM for popular brands. It operates three production lines, has inventory capability, and has exported goods for 17 years, indicating an experienced manufacturing-oriented supplier with international service exposure.

After-Sales capabilityThe supplier states that it has written procedures and followed records for service-capability assessment, corrective and preventive actions, and customer complaint handling. Its company description also identifies customer service, consulting, and technical support, although specific after-sales response metrics or service coverage are not provided.

Production capacityProduction evidence includes three production lines, stated transformer output of 500,000 sets, documented finished-product inspection instructions, valid contracts with associated subcontractors, inventory capability, and lead times within 15 working days in both peak and off-season periods. These details support established production and fulfillment capability.

Customization capabilityThe supplier explicitly supports customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also provides 3D software design and ODM services, providing strong direct evidence of broad customization capability.

Product Q&A

Q:Which transformer is used in an electrical distribution system?

A step-down transformer is used in an electrical distribution system.

Q:What is the difference between distribution & power transformer?

The power transformer is used in transmission networks with high voltages whereas a distribution transformer is used in low voltage distribution networks.

Q:What are the types of transformers?

The different types of transformers are step up, step down, power, distribution, instrument, potential, comprising current, single-phase, 3-phase, auto, etc.

Q:Why transformers are rated in kVA?

Because they do not change the power factor (PF) of their output power.

Q:What is the formula for kW to kVA?

Apparent power (kVA) = Actual power (kW) / power factor (pf).