50kVA-2500kVA 10kv Electrical Prefabricated Substation Electric Transformer for Outdoor Use

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Product Description

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Basic Information
Model NO.
S11
Core
Core-type Transformer
Cooling Method
Oil-immersed Type
Winding Type
Two-winding Transformer
Certification
ISO9001, CCC, Asta
Rated Capacity
50-4500kVA
High Voltage
6-36kv
Low Voltage
380-433V
Vector Group
Yyn0, Dyn11, Dyn5
Frequency
50/60 Hz
Oil Immersed Distribution Transformer

With over 35 years of experience in the power transmission and distribution equipment industry, we specialize in a comprehensive range of products including oil-immersed transformers and compact substations. Our products are widely deployed across power grids, railways, mining operations, shipping, and residential communities.

Transformer View 1
Transformer View 2
Transformer View 3
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Core Technology

Made of high permeability grain oriented cold-rolled silicon steel. The design boosts energy efficiency and load-handling capacity with miter joints convolution type iron core.

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Corrugated Tank

Automatic welding with zero leakage rate. Corrugated heat sinks increase contact area with air for efficient heat dissipation and insulation protection.

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High-Voltage Insulators

High-performance porcelain insulators ensure mechanical strength against bending and seismic forces, with resistance not less than 500 MΩ at 20 kV.

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Technical Specifications
(The value can be customized according to local demand!)
Capacity (kVA) High voltage (kV) Low voltage (V) Vector Group No-load loss (kW) Load loss (kW) No-load current (%)
506 / 10 / 11 / 15 / 20 / 33 / 36380 / 400 / 415 / 433Dyn11 / Yyn01048702.0
10016015001.8
25032030501.4
63064862001.1
1000920103001.0
25002376207000.4
Spec Chart
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Quality Certifications
Cert 1
Cert 2
Cert 3
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Packaging & After-Sales
Shipping Standard

Usually use a strong plywood case for protection. Delivery time is typically 15-20 days.

Technical Support

7×24-hour technical consulting with remote guidance for installation and commissioning.

Warranty

Standard 12-24 months warranty. Free repair or replacement for non-human damage.

Packing 1
Packing 2
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Manufacturing Excellence
Video Cover
Experience: 35+ years in power equipment technology and practice.
Solutions: Customized power system solutions with full-process support.
Global Reach: Deeply rooted in overseas markets with rich cross-border cooperation experience.
Frequently Asked Questions
Are you a manufacturer or a trading company?
We are a dedicated manufacturer specializing in customized transformers, switchgears, and power substations designed to meet various international standards.
How do you handle quality control?
All products undergo 100% checking and testing before delivery. We provide inspection videos or reports to customers to ensure transparency and quality.
How long does it take to get a price quote?
Standard inquiries are quoted within 1 hour. For customized designs, we provide detailed specifications and pricing within 12 hours.
What is the product warranty period?
Every product comes with a 2-3 year quality warranty, provided the equipment is used correctly according to specifications.
What payment methods do you accept?
We primarily accept T/T (30% deposit, 70% balance against BL copy) and L/C at sight.
Do your products have international certifications?
Yes, our products carry CE, 3C, and CQC certificates. We can also assist in applying for other specific regional certificates if required.

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