Tanaka Electric Tanaka Electric

50kVA 100kVA 200kVA 800kVA 1000kVA High Voltage Hv 11kv 33kv to 0.4kv Industrial Threep Hase Step Down Oil Immersed Power Distribution Transformer

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Product Description

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Basic Information

Model NO. S11/S13/S20/S22 Core Core-type Transformer
Cooling Method Oil-immersed Type Winding Type Two-winding Transformer
Certification ISO9001, CCC Usage Power, Distribution Transformer
Frequency High Frequency Shape of Core Ring
Cooling System Nature Air + Fans Connection Delta or Star Connection
Winding Material Copper Impedence 4%
Installation Pole Mounted / Outdoor HS Code 850433
Production Capacity 50,000 PCS/Year Origin China
Package Size 1440.00cm * 1035.00cm * 1130.00cm
Package Gross Weight 1274.000kg

Product Description

The S11 series is an advanced upgrade designed to enhance performance compared to former transformer models. It features a compact structure that significantly reduces the installation space required. Operating noise has been lowered, and the overloading capacity has been substantially enhanced.

Compared to the S9 series, S11 series products decrease no-load loss by 30%, and the no-load current has declined by 45-80%.

Power Distribution Transformer
Key Features:
  • Low loss and small current in no-load condition with low noise levels.
  • No oil conservator required, saving installation space.
  • New Oil Gauge design ensures maximum safety during operation.
  • Corrugated oil tank provides excellent cooling performance and flexibility.
  • Cost-effective, long-lasting service life, and easy to maintain.
Transformer View 1
Transformer View 2
Transformer View 3

Technical Specification

Standards IEC60076, GB 1094, GB/T6451-2023, GB20052-2020 Insulation Level LI75 AC35/AC5
Capacity Range 30 ~ 20,000kVA Insulation Grade A
Voltage Class 10KV, 35KV Max. Heat Rise 65K
Tapping Range ±2x2.5% / ±5% Cooling ONAN, Mineral Oil cooling system
Connection Dyn11 / Yyn0 Condition Temp ≤40ºC, Altitude ≤1000m
Product Details

Our Advantages

01
Large Capacity Range: Choice from 30KVA to 2500KVA or above.
02
Heat Dissipation: Superior cooling via oil system and corrugated tanks.
03
Low Noise: Significantly lower operating sound compared to high-rating units.
04
Energy Efficiency: Complies with higher standards for power conservation.
05
Durability: Longer life span and high impulse/surge handling capability.
06
Sustainable: Core coil assembly is easily recyclable.
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Product Lines & Workshop

Our production covers all types of distribution transformers with capacities from 30kVA to 2500kVA+ and voltage classes of 10KV/35KV. The product line includes dry-type transformers, oil-immersed transformers, rectifier transformers, and prefabricated combined units for wind and photovoltaic power.

Product Lines

With more than 10,000 square meters of production plants, we adopt the ISO9001:2015 quality management system. Our annual production capacity exceeds 5 million kVA, supported by professional R&D and advanced manufacturing departments.

Factory Workshop
Manufacturing
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Frequently Asked Questions

What are the main advantages of oil-immersed transformers?
Oil-immersed transformers offer excellent heat dissipation, higher impulse handling capability, and a generally longer service life. They are also more cost-effective for outdoor and high-voltage applications.
Can these transformers be used in outdoor environments?
Yes, our oil-immersed transformers are specifically designed for outdoor installations, featuring rugged corrugated tanks that withstand various weather conditions.
What international standards do your products meet?
Our products comply with IEC60076 standards, as well as ISO9001 and CCC certifications, ensuring global compatibility and safety.
Do you offer customization for specific project requirements?
Yes, we provide both OEM and ODM services to tailor capacity, voltage classes, and connection types to meet your specific technical needs.
How is the no-load loss reduced in the S11 series?
The S11 series utilizes advanced core materials and optimized winding structures to reduce no-load loss by approximately 30% compared to older S9 models.
What is the typical lead time for large orders?
With an annual capacity of 50,000 units, we can handle high-volume demands efficiently. Lead times depend on the specific customization and quantity requested.

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