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RL Three-Dimensional Oil-Immersed Transformer

PRODUCT PARAMETERS

  • Product Name: RL Three-Dimensional Oil-Immersed Transformer
  • Series: S11-M.RL and S13-M.RL
  • Rated Capacity: 30–1600 kVA
  • Rated Primary Voltage: 6 kV, 6.3 kV, 10 kV, 10.5 kV or 11 kV
  • Rated Secondary Voltage: 0.4 kV
  • H.V. Tap Range: ±5% or ±2 × 2.5%
  • Connection Symbol: Dyn11 or Yyn0
  • Core Structure: Three-dimensional closed wound core
  • Oil Tank Structure: Fully sealed oil tank
  • Application: Medium-voltage to low-voltage power distribution
  • Location: China
Description
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Description

RL Three-Dimensional Oil-Immersed Transformer

The RL three-dimensional oil-immersed transformer is available in S11-M.RL and S13-M.RL series. According to the catalog, the transformer is designed with a three-dimensional wound core, circular windings and a fully sealed oil tank structure.

The rated capacity range is from 30 to 1600 kVA. Available rated primary voltages include 6 kV, 6.3 kV, 10 kV, 10.5 kV and 11 kV, with a rated secondary voltage of 0.4 kV.

Product Structure

  • Iron Core: Made from cold-rolled grain-oriented silicon steel sheets with high magnetic permeability.
  • Closed Core Structure: The silicon steel sheets are continuously wound into a closed form without joints.
  • Coil: Made from enameled round wire and flat copper wire.
  • Circular Winding: The circular winding structure provides consistent mechanical strength.
  • Oil Tank: The transformer uses a fully sealed oil tank structure without a separate oil conservator.
  • Surface Treatment: The oil tank is treated for rust prevention and finished with a protective coating.

Product Features

  • Balanced Magnetic Circuit: The three-phase magnetic circuit paths have equal and short lengths.
  • Lower Loss: The jointless wound core structure helps reduce no-load loss.
  • Lower No-Load Current: The closed magnetic circuit helps reduce excitation current.
  • Lower Noise: The closely connected silicon steel strips and closed core structure help minimize air gaps and operating noise.
  • Short-Circuit Resistance: The circular winding section provides consistent force distribution under short-circuit conditions.
  • Stable Structure: The welded triangular clamping structure provides overall mechanical stability.
  • Fully Sealed Design: The sealed structure reduces direct contact between transformer oil and air.

Applications

  • Urban power distribution systems
  • Medium-voltage and low-voltage power conversion
  • 6 kV to 11 kV power distribution networks
  • 0.4 kV secondary power distribution applications

Main Technical Data

ParameterS11-M.RL SeriesS13-M.RL Series
Product TypeThree-Dimensional Oil-Immersed TransformerThree-Dimensional Oil-Immersed Transformer
Rated Capacity30–1600 kVA30–1600 kVA
Rated Primary Voltage6 / 6.3 / 10 / 10.5 / 11 kV6 / 6.3 / 10 / 10.5 / 11 kV
H.V. Tap Range±5% or ±2 × 2.5%±5% or ±2 × 2.5%
Rated Secondary Voltage0.4 kV0.4 kV
Connection SymbolDyn11 / Yyn0Dyn11 / Yyn0
No-Load Loss0.10–1.64 kW0.08–1.17 kW
No-Load Current0.24–0.60%0.12–0.30%
Short-Circuit Impedance4.0% or 4.5%4.0% or 4.5%
Reference Weight290–3660 kg295–3755 kg

Note: Load loss, dimensions, weight and other technical data vary according to rated capacity and connection group. The dimensions shown in the catalog are for reference only. Final installation dimensions shall be based on the outline drawing provided by the manufacturer.

FAQs

We provide a wide range of power transmission and distribution equipment, including transformers, composite insulators, surge arresters, switchgear, distribution boxes, meter boxes and smart metering products. Our products are widely used in power grids, substations, railway electrification, industrial facilities and infrastructure projects.

Yes. We can provide customized solutions according to voltage level, technical parameters, installation environment, application conditions and project requirements. Customers can send drawings, specifications or project details for technical communication.

Jikai holds key certifications including ISO 9001, ISO 14001, ISO 45001, UL, CE and Iraq MOE supplier registration. These certifications support our quality management system, product compliance and international project cooperation.

You can contact us by email or submit an inquiry through the website. To help us provide an accurate quotation, please include the product type, voltage level, quantity, technical requirements, destination country and any related drawings or specifications.

Yes. We provide professional technical support for product selection, project communication, installation guidance and after-sales service. Our team helps customers ensure safe, stable and reliable operation of power equipment in different application scenarios.

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