Tanaka Electric Tanaka Electric

Large Capacity Three Phase 33kv 11kv Hv to 0.4kv Step Down Cast Resin Dry Type Electric Power Distribution Compact Prefabricated Substation Transformer

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Product Description

Basic Information
Model NO.
SC(B)
Core
Core-type Transformer
Cooling Method
Dry-type Transformer
Winding Type
Two-winding Transformer
Certification
ISO9001-2000, ISO9001, CCC
Usage
Distribution Transformer
Frequency
High Frequency
Shape of Core
Ring
Cooling System
Nature Air + Fans
Connection
Delta / Star Connection
Impedence
6%
Enclosure
Optional IP20
Origin
China
HS Code
850433
Packaging & Delivery
Package Size
1440.00cm * 1035.00cm * 1130.00cm
Gross Weight
1274.000kg
Transport Package
Wooden Case
Product Description
Overview
SC(B) serie products are resin cast dry type transformers that are installed indoor with fire prevention functions. They are the first choice for places with limited spaces, close to the load center, or special place which has higher requirements of fire-proof.

SC(B) series transformers are widely used in various industries and applications because of their safety, reliability, and environmental benefits. Such as power station, hospitals, factories, buildings, commercial centers, airports, transportation tunnels, chemical plants, ships, etc.

They can operate in harsh conditions such as high humidity, fire risk, and seismic events without compromising their performance or posing any hazard to people or property.
Cast Resin Dry Type Transformer
Key Advantages
Low noise & low loss: advanced design and high quality grain oriented cold-rolled silicon steel
Low partial discharge: ensure transformer long-running safely
Strong capability resist to short-circuit: epoxy glass fiber mesh structure insulation & vacuum resin casting
Good impacting resistance and high level insulation and fire prevention
Transformer Detail 1
Transformer Detail 2
Transformer Detail 3
Technical Specification
Standards IEC60726, GB 1094.11-2022, GB/T10228-2023, GB20052-2020 Insulation Level LI75 AC35/AC5
Capacity Range 30~10,000kVA Partial Discharge ≤10PC
Voltage Class 10KV, 35KV Insulation Grade F
Tapping Range ±2x2.5% / ±5% Max. Heat Rise 100k
Voltage Regulation Non-excitation, or On-load Operation Condition Temp ≤40ºC, Altitude ≤1000m
Connection Dyn11 / Yyn0 Cooling AN (Air Nature) / AF (Air + Fan)
Protection IP00(No cover), IP20(indoor), IP23(outdoor)
Product Details View
Why Choose Our Dry Type Transformers
1. Safety: Enhanced by eliminating flammable or toxic liquids, reducing fire risks.
2. Maintenance-free: No oil changes, tests, or spill cleanups required.
3. Easy Installation: No special foundations needed; can be placed close to the load.
4. Environmentally Friendly: No harmful gas emissions.
5. Overload Handling: Superior heat dissipation and thermal endurance.
Safety Features
Seismic Resistance
6. Reduced Costs: No need for fire walls, extinguishers, or oil pits.
7. Seismic Performance: Rigid structure withstands vibrations and shocks.
8. No Fire Hazard: Self-extinguishing properties with no smoke production.
9. Short-circuit Resistance: High mechanical strength and low impedance.
10. Durability: High-quality insulation materials for long-lasting use.
Product Lines
We mainly produce and sell all kinds of distribution transformers with capacity from 30kVA to 2500kVA (or above) with voltage class of 10KV/35KV.

Our product series include dry-type transformers, oil-immersed transformers, underground transformers, rectifier transformers, prefabricated and combined transformers, wind power and photovoltaic transformers, as well as HV/MV/LV switchgears. Our annual production capacity exceeds 5 million kVA.
Product Line Overview
Factory Workshop
Established in 2007, we are a professional manufacturer of electric power equipment with integrated R&D, Production, Sales and Service departments.

We have more than 10,000 square meters of production plants and adopt the ISO9001: 2015 quality management system. We are recognized as a High & New Technology Enterprise certificated by the government.
Factory Workshop
Frequently Asked Questions
What are the primary benefits of SC(B) series dry-type transformers?
SC(B) series transformers offer high safety, low noise, and low loss. They are fire-proof, maintenance-free, and pollution-free, making them ideal for indoor environments and load centers.
Where are these transformers typically installed?
They are widely used in power stations, hospitals, high-rise buildings, commercial centers, airports, tunnels, chemical plants, and ships, especially where space is limited or fire safety is a priority.
Do these transformers require regular oil maintenance?
No, these are dry-type resin cast transformers. They do not use oil, which eliminates the need for oil changes, oil tests, and the risk of oil leaks.
What cooling methods are supported?
They support both Air Nature (AN) cooling and Air + Fan (AF) cooling systems to ensure optimal performance under different load conditions.
Can these transformers withstand harsh environmental conditions?
Yes, they are designed to operate reliably in high humidity, damp, and contaminated areas. They also have excellent resistance to seismic events and short-circuit currents.
What is the capacity range available?
The capacity range typically spans from 30kVA to 10,000kVA, covering a wide range of distribution and power needs.
FAQ Support

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