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.

Single and Double Winding Three-Phase Integrated Zero-Sequence Current Transformer

Name: Single and Double Winding Three-Phase Integrated Zero-Sequence Current Transformer
Brand: Zhejiang Dahu Electric Co., Ltd.
SKU: 2165264375

Zhejiang, ChinaZhejiang Dahu Electric Co., Ltd.

US$1,500.00-3,000.00

1 Piece

Sample price:US$1500.00/piece.Request sample

Product profile

Application

Power, Electronic, Instrument

Phase

Three

Core

Core-type Transformer

Model NO.

LSY3-10/107

Cooling Method

Oil-immersed Type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001-2000, ISO9001

Usage

Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Dahu

Transport Package

Wooden Box

Trademark

DAHU

Origin

Wenzhou

HS Code

8547909000

Production Capacity

20000 Sets/Year

Key features

OEM and ODM Services: Full customization, minor customization, and flexible customization options available.

100% Quality Inspection: All finished products undergo visual and functional inspection before delivery.

Fast Lead Time: Peak and off-peak season lead times are both within 15 working days.

ISO9001 Certified: Manufacturing process certified under ISO9001-2000 and ISO9001 standards.

Multi-Winding Design: Features multi-winding transformer structure for versatile power applications.

Versatile Application: Suitable for rectifier, combined, power, and distribution transformer uses.

Ring Core Shape: Core-type transformer with a ring shape for efficient magnetic performance.

Established Manufacturer: Operating since 2006 with 17 years of export experience and 6000 sqm plant area.

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: ≤4.94h

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 and 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).