Tanaka Electric Tanaka Electric

OEM Supplier 100 kVA Oil Immersion Dry Type Transformer Power Transformer 5000 kVA Large Power Transformer

Customization: Available
Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
Phase: Three

Product Description

📋 Basic Information
Core
Core-type Transformer
Cooling Method
Oil-immersed Type
Winding Type
Two-winding Transformer
Certification
ISO, CE
Usage
Power/Distribution Transformer
Frequency
50Hz / Low Frequency
Rated Capacity
30kVA ~ 2500kVA
Standard
IEC60076
⚙️ Product Description

Our oil-immersed transformers are widely used in residential communities, commercial complexes, industrial and mining enterprises, power stations, public facilities, and urban/rural power grid upgrading projects. They are suitable for 10kV / 20kV / 35kV distribution and transmission systems with stable performance in various load fluctuation conditions and harsh environments.

Oil Immersion Power Transformer

Key Technical Advantages

01
High-quality Silicon-steel Core: 45° multi-seam lamination ensures low no-load loss and minimal operational noise.
02
Fully-sealed Corrugated Tank: Prevents oxidation and moisture ingress, resulting in a maintenance-free extended service life.
03
Short-circuit Withstand: Reinforced structure provides excellent short-circuit tolerance and consistent quality.
04
High Overload Performance: Supports up to 2.0x rated capacity for 1 hour, ideal for peak season surges.
🖼️ Product Display
Transformer detail 1
Transformer detail 2
Technical Layout
📊 Specifications
Product Model Voltage Class Vector Group Capacitance Range Voltage Regulating Mode
35kV Power Transformer 35kV Yyn0, Dyn11 800~25000kVA On-load / No-excitation
20kV Distribution Transformer 20kV Yyn0, Dyn11 30~2500kVA No-excitation
10kV Distribution Transformer 10kV, 6kV Yyn0, Dyn11 30~3150kVA No-excitation
Amorphous Alloy Type 10kV, 6kV Yyn0, Dyn11 50, 100, 200kVA High Overload Support
🛠️ Customizable Options (OEM / ODM)

Our transformers can be tailored to meet global grid standards and specific project requirements:

  • 🔹 Voltage: 6kV to 35kV
  • 🔹 Frequency: 50Hz / 60Hz
  • 🔹 Material: Copper / Aluminum
  • 🔹 Efficiency: S11, S13, SH15
  • 🔹 Capacity: 30kVA to 25000kVA
  • 🔹 Tank Color: Grey, Green, Custom
📦 Packing & Delivery
Packing 1
Packing 2
Packing 3
Delivery Process
Frequently Asked Questions
Q: What is the typical lead time for an order?
A: Standard models usually ship within 15–30 days, while fully customized units require 30–45 days depending on the specifications.
Q: Do the transformers comply with international standards?
A: Yes, our products are designed and manufactured in accordance with IEC60076 standards and have passed ISO9001 and CE certifications.
Q: Can I customize the winding material?
A: Absolutely. We offer high-conductivity copper as standard, but aluminum windings are available as a cost-effective option for specific engineering projects.
Q: What are the benefits of the fully-sealed corrugated tank?
A: The sealed design isolates the oil from air, preventing oxidation and moisture. This makes the transformer virtually maintenance-free and significantly extends its operational life.
Q: How do you handle export documentation?
A: We provide a comprehensive export package including Commercial Invoices, Packing Lists, Bill of Lading, and Certificates of Conformity (COC).
Q: What cooling methods are used?
A: We primarily utilize Oil Natural Air Natural (ONAN) cooling for our oil-immersed distribution transformers to ensure reliable heat dissipation.

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