High Efficiency Three Phase Oil Immersed Distribution Transformer, Efficiency Level 3

Basic information

    Type: Oil Immersed Transformer

    Phase: Three

    Service Voltage: 6KV~11KV

    Rated Capacity: 30KVA-2500kVA

    Vector group:Yyn0, Dyn11

    Cooling type: ONAN

    Core material: CRGO

     Winding material: Copper/aluminum

    Available fluids: mineral oil and ester fluids

    Purpose:Three-phase oil type pole mounted power transformers are intended for transforming of electric energy in networks of power systems and in energy consumer networks.

Oil-Immersed Distribution Transformer Overview

    S13 type 30kva oil Immersed transformer is a new generation of products that are more energy efficient and environmentally friendly than the S9. lt is the kind of transformer with rated capacity ranging from 30KVA to 250OKVA, suitable for power systems with a working voltage of6KV-llKV. It is the main transformer equipment of medium and small-sized transformer substation.

Product Standards:

    IEC 60076 Standard System for Power Transformers 

    GB 1094 Power Transformer

    GB/T 15164 Oil-immersed power transformer load guide

    GB/T 6451 Three-phase oil-immersed power transformer technical parameters and requirements

Three Phase Oil immersed Transformer Features:

    ·Low-voltage windings typically adopt a cylindrical structure of copper foil winding, except for small-capacity using copper wires. High-voltage winding use a multi-layer cylindrical structure, balancing ampere-turns distribution, minimizing magnetic leakage, and enhancing mechanical strength and short-circuit resistance.

    ·Fastening measures for the core and windings include self-locking nuts on device height and low-voltage leads, along with a non-hanging core structure, ensuring transport shock resistance.

    ·Coils and cores undergo vacuum drying, and transformer oil is processed through vacuum filtration and injection, minimizing internal moisture.

    ·The oil tank uses corrugated sheets with respiratory function to compensate for oil volume changes due to temperature fluctuations, eliminating the need for an oil storage tank and reducing transformer height.

    ·Corrugated sheets isolate transformer oil from the external environment, preventing oxygen and water ingress and maintaining insulation performance.

    ·These features ensure that our 30kva oil Immersed transformer does not require oil changes during normal operation, significantly reducing maintenance costs and extending service life.

Oil Immersed Hermetically Sealed Transformer Advantage:

    S13 type Tridimensional Toroidal-Core Distribution Transformer has a number of significant product features,  which make it superior in performance.

    Loss Control: According to GB/T6451-1999, no-load loss is reduced by 50%, and load loss by 30%, significantly lowering energy consumption and improving efficiency.

    Reduced No-Load Current: Supported by the excellent performance of the coil core material and the unique winding process, the no-load current is reduced by 75% compared to similar products, lowering operating costs and grid interference.

    Operating Noise: Compliance with JB/TI0088-1999 standards reduces noise levels by 7 to 9 dB, providing a quieter environment.

    Strong Short-Circuit Resistance: A three-dimensional triangular prism structure with pull screws and laminated wood blocks ensures stability under sudden short circuits.

Oil Immersed Electric Transformer Accessories