SZ11-200～2000/10 Three-phase oil-immersed on-load voltage regulation and distribution transformer

CNKEEYA,SZ11-200～2000/10 Three-phase oil-immersed on-load voltage regulation and distribution transformer, industrial parks . Adopting low-loss core tech , it’s made in smart factories . Partnered with major grids , annual sales top 500 units, with 50+ in stock.

Through CNKEEYA’s rigorous engineering calculation and verification protocols, key components including the transformer core, coils, active parts, and lead tanks undergo comprehensive optimized design and validation. This ensures not only exceptional performance of the 12500kVA S11-series transformer but also full compliance with local appearance requirements for high/medium voltage power supply applications.

Leveraging advanced technological equipment, meticulous material selection, and streamlined manufacturing processes, this oil-filled S11 transformer delivers outstanding advantages: compact footprint, lightweight design, minimal energy loss, low partial discharge (PD), and reduced noise levels. These premium features enable superior quality, energy efficiency, environmental friendliness, and reliable operation – ultimately helping customers lower long-term operating costs for critical power supply scenarios.

◆Device type:outdoor type

◆Normal environmental use conditions:altitude does not exceed 1000m.

◆ The ambient temperature is up to+40℃,and the minimum is-25℃.

◆ Special environmental conditions:altitude more than 1000m.

◆ The ambient temperature is up to+40°℃and the lowest is-45℃.(Detailed instructions at the time of ordering)

◆ Installation site:no corrosive gas,no obvious dirt environment.

Execution standards

◆GB1094.1~2-2013 power transformer

◆GB1094.3-2003 power transformer

◆GB/T1094.4-2005 power transformer

◆GB1094.5-2008 power transformer

◆GB/T6451-2008 three-phase oil-immersed transformer technical parameters and requirements

◆ International standard IEC76

Performance characteristics

In the S9 series, the no-load loss is reduced by 30% on average,the average temperature rise is reduced by 10K, the service lifeof the product is more than doubled,and it can still operate for a long time even under the condition of overload of 20%; Theoperating noise of the product is reduced by an average of 2-4 dB.

Note: The weight and dimensions in the table are for reference only and subject to change without prior notice

Core Advantages & Features

1. Rigorous Engineering & Compliance

  Through CNKEEYA’s strict engineering calculation and verification protocols, all key components undergo comprehensive optimized design and validation, ensuring exceptional performance and full compliance with local requirements.

2. Superior Energy Efficiency & Low Environmental Impact

  Features a low-loss, low-noise, low partial discharge, and low temperature rise design that maximizes energy savings while minimizing operational impact.

3. Enhanced Insulation & Reliability

  Adopts the latest insulator structure to deliver top-tier insulation performance, significantly improving operational safety and long-term reliability.

4. Strong Short-Circuit Withstand Capability

  Boasts excellent anti-short-circuit ability, engineered to endure harsh operating conditions and maintain stability during unexpected electrical faults.

5. Efficient Heat Dissipation

  Incorporates high-performance heat dissipating components (e.g., corrugated sheets, plate radiators) to ensure stable temperature control even under heavy load conditions.

6. High-Quality Iron Core Design

   . Crafted from premium cold-rolled grain-oriented silicon steel, reducing electromagnetic loss and optimizing magnetic properties.

   . Adopts a 45-degree full miter joint and circular cross-section structure, maintaining structural integrity and resisting loosening from vibration during transportation and long-term operation.

7. Compact & Lightweight Construction

  Backed by advanced technological equipment, meticulous material selection, and streamlined manufacturing processes, offering a space-saving footprint and lightweight design for easier installation and transportation.

Interested in our 33kV S11 oil-filled transformer? Its low-loss core, oxygen-free copper windings and Dyn11 connection ensure top-tier performance. For quotes, specs or custom solutions, reach out now—our team is ready to assist!