What certifications does the product have?

The transformer is certified under ISO9001 and CCC standards.

What is the installation height limit?

The installation height should be no more than 1000 meters above sea level.

Distribution Transformer with Oil Immersed

Name: 11kv/33kv/35kv Power/Distribution Transformer with Oil Immersed
Brand: Huainan Wantai Electric Co., Ltd.
SKU: 1932032585

Anhui, ChinaHuainan Wantai Electric Co., Ltd.

US$5,100.00

1-9 Pieces

US$5,000.00

10+ Pieces

Product profile

Customization

Available

Phase

Three

Core

Core-type Transformer

Model NO.

S11

Cooling Method

Oil-immersed Type Transformer

Winding Type

Two-winding Transformer

Certification

ISO9001, CCC

Frequency Characteristics

Power Frequency

Shape of Core

Ring

Brand

Wantai

Ambient Temperature

-40~40

Transport Package

Wooden Case

Specification

1380*930*1175mm

Trademark

Wantai

Origin

Huainan, Anhui, China

HS Code

8504210000

Production Capacity

10000

Key features

Fully Sealed Design: Corrugated tank eliminates oil conservator, preventing air and moisture ingress to maintain insulation performance.

High Efficiency Core: Cold-rolled silicon steel sheet with grain orientation ensures high conductivity and low energy loss.

Robust Winding Structure: Concentric coil with corrugated oil ducts and tight band binding for enhanced durability and cooling.

Comprehensive Protection: Equipped with pressure relief valves and optional gas relays with alarm and trip terminals for safety.

Wide Voltage Options: Available in 11kV, 33kV, and 35kV configurations to suit various power distribution needs.

Certified Quality: Manufactured under ISO9001 and CCC standards, ensuring reliability and compliance.

Low Maintenance: Vacuum oil injection process removes moisture, eliminating the need for regular oil sample tests.

Company profile

Huainan Wantai Electric Co., Ltd.

Anhui, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2009-09-02 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.86h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryHuainan Wantai Electric Co., Ltd. is a China-based limited company established in 2009, operating in mining electronics and related electrical equipment. The supplier reports ISO9001:2015, ISO14001:2015, and OHSAS18001:2007 certifications, three government-recognized R&D institutions, and 57 years of cumulative R&D engineer experience. Its stated capabilities include development, production, sales, and service, with products such as mine soft starters, feeder switches, lamps, automation systems, switch cabinets, and protection devices. Evidence also indicates a manufacturing plant of 41,708 m², regional sales coverage across multiple Chinese provinces, and dedicated sales and post-sales personnel. However, the provided information does not establish detailed financial strength, customer-specific case studies, or explicit customization processes.

Supplier typeThe supplier is identified as Huainan Wantai Electric Co., Ltd., a Chinese limited company based in Anhui. Its stated activities combine development, production, sales, and service for mining electronic and electrical products, although another record describes its company nature as a trading company.

CertificationsThe supplier explicitly reports ISO9001:2015 quality certification, ISO14001:2015 environmental certification, and OHSAS18001:2007 certification, with ISO9001 also referenced in its company description. These certifications support documented quality, environmental, and occupational health and safety management systems.

After-Sales capabilityThe supplier states that it has experienced sales and post-sales members and describes its business as integrating development, production, sales, and service. This supports the existence of after-sales resources, but no response-time, service-network, spare-parts, or technical-support metrics are provided.

R&D capabilityThe supplier reports three government-recognized R&D institutions and 57 years of total R&D engineer experience. Its stated product-development goal is to deliver safer, more energy-saving, and more efficient system solutions, indicating established R&D resources and innovation orientation.

Production capacityThe supplier reports 371 employees in one company record and 500 employees in a company description, a 41,708 m² manufacturing plant, and an integrated development and production operation. It also claims ready production facilities and broad mining-electronics product coverage, supporting substantial production capability, although verified capacity and output figures are not provided.

Product Q&A

Q:What is the cooling method of this transformer?

It uses an oil-immersed cooling method with a corrugated tank that acts as a heat sink and allows for 'breathing' to compensate for oil volume changes.

Q:What are the applicable voltage levels?

The transformer is available in 11kV, 33kV, and 35kV versions, suitable for AC 50Hz power systems with rated working voltages of 33kV and below.

Q:What protection devices are included?

Transformers up to 2000kVA include pressure relief valves. Gas relays with alarm and trip terminals can be installed according to user requirements.

Q:Why is regular oil sampling not necessary?

The vacuum oil injection process completely removes moisture, and the sealed design prevents oxygen and moisture from entering, preserving insulation performance.

Q:Can the tap voltage be adjusted?

Yes, the high voltage winding has taps connected to a tap changer on the box cover, allowing voltage adjustment after the power supply is cut off.