What payment terms are accepted?

Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, Small-amount payment, and Money Gram.

Is the transformer suitable for outdoor use?

Yes, it is widely used in outdoor places such as urban power grid reconstruction, residential districts, factories, high-rise buildings, mining factories, hotels, shopping malls, airports, railways, oil fields, wharves, and highways.

S11-M Series Three-Phase 1250kVA Full-Sealed Oil-Immersed Distribution Transformers

Name: S11-M Series Three-Phase 1250kVA Full-Sealed Oil-Immersed Distribution Transformers
Brand: WENZHOU JUNKE ELECTRIC CO., LTD.
SKU: 2152646375

Zhejiang, ChinaWENZHOU JUNKE ELECTRIC CO., LTD.

US$6,000.00

1 Piece

Sample price:US$6000.00/piece.Request sample

Product profile

Customization

Available

Application

Power

Phase

Three

Model NO.

S11-M 1250kVA

Core

Cold-Rolled Silicon Sheet

Cooling Method

Oil-immersed Type Transformer

Winding Type

Multi-winding Transformer

Usage

Single-phase Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Power Frequency

Shape of Core

Brand

Junke

Altitude

<1000m

Coil

Oxygen-Free Copper

Frequency

50/60Hz

Capacity

30kVA-2000kVA

Applicable Environment

+40/-25degrees Centigrade

Transport Package

Wooden Package

Trademark

JUNKE

Origin

Wenzhou

Production Capacity

1000PCS/Month

Key features

Full-Sealed Design: Vacuum oil filling and sealed structure eliminate oil conservator, reducing height and maintenance needs.

High Efficiency: No-load loss reduced by 30% and no-load current by 70-85% compared to S9 series.

Extended Service Life: Retarded oil ageing and reduced temperature rise allow over double the service life of S9 series.

Low Noise Operation: Operating noise reduced by 2-4 dB on average for quieter performance in various environments.

Overload Capability: Capable of running for long periods even under 20% overload conditions.

Customizable Parameters: Winding, capacity, voltage, frequency, color, and tap changer can be customized per customer needs.

Quality Materials: Core made of cold-rolled silicon sheet; coil made of quality oxygen-free copper.

Wide Application: Suitable for urban grids, residential areas, factories, airports, railways, and outdoor installations.

Company profile

WENZHOU JUNKE ELECTRIC CO., LTD.

Zhejiang, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2010-10-01Nearest Port: NINGBO, SHANGHAI, QINGDAOAverage Response Time: ≤10.16hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CIF, DDP, EXW

AI-Powered supplier vetting

SummaryWenzhou Junke Electric Co., Ltd. is a China-based limited company identified as both a trading company and manufacturer/factory. Established in 1992, it states that it conducts R&D, manufacturing, distribution, sales, and customer support for low- and high-voltage switchgear and related electrical products. The supplier reports ISO 9001 and ISO 14001 certifications, 6–10 R&D engineers, 11–20 quality-control staff, and 10 production lines. Its listed annual product capacities range from 100,000 to 150,000 pieces across several product categories, and it exports to multiple regions, with exports representing 41%–50% of total sales. It claims to provide customized solutions and close customer service, but the available evidence does not independently verify service performance, customization outcomes, financial strength, or a broad customer portfolio. Recent trade records show transactions with buyers in the Philippines and Sri Lanka.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, with its own R&D, production, sales, and customer-support facilities. Its product portfolio covers electrical equipment such as automatic transfer switches, circuit breakers, meters, capacitors, and distribution panels.

CertificationsThe supplier reports ISO 9001 and ISO 14001 management-system certifications and states that some products have been approved by CE and IEC certificates. The evidence supports certification holding, although it does not provide certificate numbers, validity dates, or coverage details.

R&D capabilityThe company states that it specializes in research and design and maintains its own R&D facilities, with 6–10 years of total R&D-engineer experience reported. This supports an established product-development function, but no patents, new-product records, testing programs, or R&D achievements are provided.

Production capacityThe supplier reports its own manufacturing facilities, 10 production lines, and stated capacities of 100,000 pieces for automatic transfer switches and power capacitors, 150,000 pieces for meter sockets/meters, and 110,000 pieces each for soft starters/inverters and circuit breakers. It also reports 11–20 quality-control staff, indicating substantial stated production and quality resources.

Customization capabilityThe company explicitly describes its service as designing, manufacturing, and delivering customized solutions, and says it can help clients research electrical sources for panels. The evidence confirms a stated customization offering, though it does not provide specific customized projects, engineering scope, or delivery examples.

Client casesThe supplier identifies export markets across South America, the Middle East, Southeast Asia, Eastern Asia, Oceania, and Africa, and reports export activity beginning in 2010. Trade records show transactions involving ENEX ELECTRIC PHILS INC in the Philippines and MICRO POWER ENGINEERING PVT LTD in Sri Lanka, but the records shown are limited to individual transactions and do not establish a broad or independently verified customer track record.

Product Q&A

Q:What is the warranty period?

The product features a fully sealed structure that is maintenance-free, and the service life is more than doubled compared to S9 series.

Q:Can the transformer capacity be customized?

Yes, the capacity can be customized according to customer needs, with a customizable range from 30kVA to 2000kVA.

Q:How does the S11-M series compare to the S9 series in terms of efficiency?

Compared to the S9 series, the S11 series reduces no-load loss by 30% on average, decreases no-load current by 70-85%, reduces average temperature rise by 10K, and lowers operating noise by 2-4 dB.

Q:What standards does this transformer conform to?

The performances of the model S11-M series full-sealed oil-immersed distribution transformers conform to IEC standards.

Q:What is the lead time for delivery?

The peak season lead time is one month, while the off-season lead time is within 15 workdays.