Dry transformer SC(B)9-10kV

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Description

 

The SC(B)9-10kV dry-type transformer is a cast resin distribution transformer designed for 10kV power systems. Unlike oil-immersed models, this transformer uses solid insulation and air cooling, making it fire-safe, environmentally friendly, and low maintenance—ideal for indoor and environmentally sensitive installations.

The SC(B)9 series is well-known for its reliable performance, low partial discharge, and high mechanical strength, making it a top choice for industrial, commercial, and utility-scale power distribution.

Ideal for:

  • Industrial plants and manufacturing workshops
  • Power supply in commercial complexes and high-rise buildings
  • Underground substations and tunnels
  • Hospitals, data centers, and airports
  • Renewable energy integration (wind, solar)
  • Petrochemical and offshore platforms
  • Metro stations and railway substations

 

We developed SC9,SCB9 series and SC10,SCB10 series padding thin-insulation dry-type distributing transformer whose winding is sealed up with epoxy, therefore the resin insulating dry-type transformer is flame-retardant, explosion-proof, free from maintenance and pollution, and it is compacted and can go deep into load center.

 

Besides, with scientific and reasonable design and coating craft work, it has advantages of low partial discharge capacity, low noise, good heat dispersion and it can run over a long time with 125% rated load in the circumstance of cold wind. It applies intelligent thermal controller and has the functions that it will alarm when there is fault or the temperature is exceeded and switch off as well as the function of ”black box”. It can be monitored and controlled by connecting it to the computer through its RS485 serial interface.

 

Model Description:

S———————————three-phase

C———————————solidification forming (epoxy resin cast)

B———————————LV foil coil

9———————————performance code

□———————————rated capacity (KVA)

□———————————rated voltage (HV KV)

Parameters

 

Working conditions:

  1. Altitude: ≤2000m in indoor or outdoor use
  2. Maximum environmental temperature: +40℃, maximum daily average temperature: +30℃
  3. Maximum annual average temperature: +20℃, minimum temperature: -25℃
  4. Customized products are available.

 

Performance characteristics:

  1. The iron core is produced with high quality grain orientated cold rolled silicon steel sheet, thickness: ≤ 0.3 mm, 45°full oblique ladder type lap. Core surface is packed with protective resin to be well protected against moisture and rust
  2. Low voltage winding usually adopts copper foil winded cylindrical structure except of using copper conductor for small capacity ones;High voltage winding uses multi-layer cylindrical structure, which makes a balance ampere-turns distribution, small magnetic-leakage loss, strong mechanical strength and good anti-short circuit ability.
  3. The transformer can be configured with bass air cooling device, realizing automatic fan on and off through temperature controller operation.
  4. We can start and close fan or give warnings and breaking circuit via temperature sensing element and sensor system buried in low voltage winding, to protect the transformer.
  5. IP20: Avoid things with diameter > 12 mm into the shell. IP23: Avoid water with ≤60°vertica angle into the shell. The protection case can plays a role of preventing small animals into then causing short-circuit faults, as well as protecting human safety.
  • The no-load loss of SC(B)9 is the same as that of GB/T10228-2008.
  • The load loss of SC(B)9 is the same as that of GB/T10228-2008.
  • The no-load loss of SC(B)10 is 10% less than that of GB/T10228-2008.
  • The load loss of SC(B)10 is 5% less than that of GB/T10228-2008.

 

SC(B)9 vs Oil-Immersed Transformers: Key Differences

Criteria SC(B)9 Dry-Type Oil-Immersed Transformer
Cooling Medium Air Mineral insulating oil
Fire Risk None – self-extinguishing Requires fire barriers & safety systems
Maintenance Low – no oil checks or leak risks Requires oil testing and sealing checks
Installation Location Indoor/outdoor without containment pits Needs containment and ventilation
Environmental Impact Environmentally friendly Potential oil leakage hazards
Noise Level Low Moderate

SC(B)9 is ideal for modern green buildings, safe environments, and sensitive industrial applications.

 

Why Choose SC(B)9-10kV Transformers for Your Industrial Project?

  • Safe and silent operation for urban and indoor environments
  • Easy installation without special foundations or oil pits
  • Eco-friendly solution aligned with sustainable development goals
  • Lower operating costs over the transformer’s 20+ year lifespan
  • Fully customizable for your voltage, frequency, or insulation class requirements

 

Order SC(B)9-10kV Dry-Type Transformers for Industrial Use

We provide SC(B)9 cast resin dry-type transformers with robust, certified designs for a wide range of industrial and commercial applications.

  • ISO/IEC-compliant transformers with factory test reports
  • Available in standard and customized models
  • Fast delivery and technical support for installation and integration
  • OEM/ODM services available for EPC and infrastructure projects

Solutions

 

METTZ Group stands as a consortium of Chinese electrical firms, renowned for its expertise in manufacturing electrical equipment. We are specialized in crafting a comprehensive suite of transmission and distribution equipment, covering a wide voltage range from 0.4 to 40.5 kV. Our commitment lies in delivering reliable and stable products to our clientele, encompassing vacuum circuit breakers (VCB), gas-insulated switchgear modular units (RMU), solid insulated switchgear (SIS) panels, air insulated switchgear (AIS) panels, and dry compressed air insulated switchgear panels (DIS).

Since our inception, METTZ Group has been at the forefront of adopting international cutting-edge technologies and equipment. We pride ourselves on our extensive collaboration and dialogue with leading experts in the electrical technology sector, both within China and internationally. Our offerings are tailored to meet the specific needs of our clients, including Original Equipment Manufacturer (OEM) services, customization of products to unique parameters and dimensions, all in alignment with our customers’ specifications.

METTZ Group is dedicated to innovation, quality, and customer satisfaction, ensuring that we remain a preferred partner for electrical equipment solutions worldwide.

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