What is a Distribution Transformer?

Unlike a power transformer, distribution transformers serve for circulation purposes. They bring down the voltage and incidental level of a power transmission line to a predetermined scale for end-user safety.

What is the voltage range for this transformer?

The voltage range varies between 33kV to 430V.

Does the product support customization?

Yes, we offer customization from samples, designs, full customization, minor customization, and flexible customization.

3 Phase 20kv 35kv to 400V Oil Type Power Electrical Transformer S11

Name: 3 Phase 20kv 35kv to 400V Oil Type Power Electrical Transformer S11
Brand: Zhejiang Dahu Electric Co., Ltd.
SKU: 1961076772

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

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

Warranty

12months

Frequency

50/60Hz

Transport Package

Wooden Box

Specification

Standard or customization

Trademark

DAHU

Origin

China

Production Capacity

20000 Sets/Year

Key features

Oil Immersed Cooling: Utilizes oil-immersed type cooling for efficient heat dissipation.

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

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

12 Months Warranty: Comes with a 12-month warranty coverage for peace of mind.

OEM & ODM Services: Offers flexible customization including samples, designs, and full customization.

Low Magnetic Losses: Designed with low magnetic losses for improved efficiency.

Easy Installation: Compact size and design allow for easy installation in various settings.

Wide Voltage Range: Operates within a voltage range of 33kV to 430V for diverse needs.

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).