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Fengguang Transformer
Type SG(B) Dry-Type Transformer — Fengguang Transformer Dry-Type Power Transformer

Standards

GB / IEC 60076

Testing

Routine report

Origin

China

Dry-Type Power Transformers

Type SG(B) Dry-Type Transformer

Dry-Type Power Transformer

The structural design of the dry-type transformer is well-crafted. The windings are arranged in an orderly manner, and multi-colored wires such as yellow, green, and red clearly distinguish the phases, facilitating installation and maintenance. It adopts a modular component layout, with tight connections between various parts. This not only ensures the reliability of electrical connections but also provides convenience for later maintenance. The overall structure achieves a good balance between stability and operability.

Quick answer. Type SG(B) Dry-Type Transformer is a Dry-Type Power Transformer. Typical applications include Data centres and telecom rooms, Hospitals and laboratories, Commercial buildings and shopping malls. It is designed to GB 1094.1 and IEC 60076, with routine tests recorded against the approved datasheet.
Product type
Dry-Type Power Transformer
Rated capacity
30-2,500 kVA
Voltage class
10 kV / 20 kV / 35 kV
Insulation
Cast epoxy resin, Class F/H
Cooling
AN / AF
Winding
Copper or aluminium (project-specific)

Final ratings, losses, impedance and dimensions are confirmed on the approved datasheet. Website values are for family selection.

  • Routine test report with the unit
  • English GA drawing and O&M manual
  • Copper or aluminium winding options
  • 50 Hz / 60 Hz and harsh-site options
GB 1094.1· GB/T 6451· IEC 60076· ISO 9001 / 14001 / 45001· CE where applicable

Product overview

Structural Design and Process Features

The structural design of the dry-type transformer is well-crafted. The windings are arranged in an orderly manner, and multi-colored wires such as yellow, green, and red clearly distinguish the phases, facilitating installation and maintenance. It adopts a modular component layout, with tight connections between various parts. This not only ensures the reliability of electrical connections but also provides convenience for later maintenance. The overall structure achieves a good balance between stability and operability.

Core Performance and Technical Advantages

This dry-type transformer has excellent electrical performance, high mechanical strength, and strong short-circuit resistance, which can effectively cope with impact loads in the power system. At the same time, it has the characteristics of low loss and low noise, with significant energy-saving effects. The matched heat dissipation components can help the equipment operate stably under high-load conditions. With good thermal stability and small partial discharge, the reliability and service life of the transformer are strongly guaranteed.

Applicable Scenarios and Value Manifestation

Due to its advantages of safety, fire resistance, no pollution, and low maintenance workload, this dry-type transformer is widely used in places with strict requirements for fire and explosion protection, such as large commercial buildings, hospitals, and chemical enterprises. In addition, its small size and light weight can also reduce installation space and costs, efficiently adapting to high-load power consumption scenarios and providing solid support for the stable and efficient operation of the power system.

Design features

What the design is built around

Cast-resin insulation

Epoxy resin encapsulation protects windings from dust, humidity and accidental contact.

Fire-safe design

No insulating oil is used, making the unit suitable for indoor and fire-sensitive buildings.

Low partial discharge

Vacuum casting and controlled curing keep partial discharge low over the service life.

Low noise

Core and clamping design reduce structure-borne noise for hospitals, offices and data centres.

Typical specification

Specifications to confirm on the datasheet

Product type Dry-Type Power Transformer
Rated capacity 30-2,500 kVA
Voltage class 10 kV / 20 kV / 35 kV
Insulation Cast epoxy resin, Class F/H
Cooling AN / AF
Winding Copper or aluminium (project-specific)
Standards GB 1094.1, GB/T 6451, IEC 60076-11
Testing Routine tests, partial discharge and temperature-rise type tests

The table is a family-level starting point. The approved datasheet fixes the guaranteed values, drawing dimensions and test plan for the specific order.

Typical applications

  • Data centres and telecom rooms
  • Hospitals and laboratories
  • Commercial buildings and shopping malls
  • Industrial plants with fire restrictions
  • Metro, airport and public infrastructure

Confirm before ordering

  • Rated capacity, voltage ratio and tap range
  • Impedance, fault level and parallel operation
  • Ambient temperature, altitude and enclosure
  • Winding material, losses and efficiency class
  • Terminations, protection and monitoring
  • Tests, inspection, packing and shipping limits

Buyer questions

FAQ for Type SG(B) Dry-Type Transformer

What is Type SG(B) Dry-Type Transformer best used for?
This model is specified at the required capacity and 10 kV / 20 kV / 35 kV. It is used where the site load, fault level and environmental conditions match the approved datasheet. Share the load profile, ambient temperature, altitude and grid code and the design can be checked against the application.
What is the typical lead time for Type SG(B) Dry-Type Transformer?
Standard distribution units typically ship in 25-40 days after drawing approval. Large power transformers and integrated stations are scheduled by design review, core and winding production, tanking, testing and packing. The exact date is confirmed in the quotation.
Which standards and tests apply to dry-type transformers?
Dry-type units follow GB 1094.1, GB/T 6451 and IEC 60076-11. Routine tests cover winding resistance, ratio, impedance, no-load and load loss, insulation resistance and power-frequency withstand. Partial-discharge and temperature-rise type tests are available.
Can a dry-type transformer be installed outdoors?
A standard cast-resin unit is intended for indoor, well-ventilated rooms. For outdoor use an IP enclosure, anti-condensation heaters and a corrosion class must be specified. In many coastal or dusty sites an oil-immersed or prefabricated station is a better fit.
How do I choose between copper and aluminium windings?
Copper gives higher short-circuit strength and a more compact winding; aluminium can reduce first cost for lightly loaded units. The choice depends on fault level, load profile, loss evaluation and the buyer's specification. Both are available.

Project inquiry

Tell us what the transformer has to do.

Load, voltage class, site conditions, standards and required documents are enough to start. We reply through the inquiry thread.

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