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Anti Short Circuit 110kV Oil Immersed Main Transformer Supplier With On Load Tap Changer
Power Transformer

Anti Short Circuit 110kV Oil Immersed Main Transformer Supplier With On Load Tap Changer

The 110kV oil-immersed transformer serves as core equipment for hub substations in regional distribution networks, new energy power plants, and industrial and mining enterprises. It primarily handles voltage step-up and step-down operations between the 110kV level and the 35kV or 10kV levels. Widely applicable to urban substations, wind and solar step-up stations, industrial parks, hydroelectric plants, and large-scale industrial distribution projects, it is designed to operate reliably under diverse conditions—including mountainous terrain, high-humidity outdoor environments, and areas with significant diurnal temperature fluctuations—making it a critical link between the backbone power grid and end-user distribution systems.

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    Scope of Application

    Urban main transformer

    Urban backbone grid substations: focusing on noise, energy efficiency, and reliability.

    Scope of Application (3)

    Dedicated station for the industrial park

    Dedicated substations for industrial parks emphasize short-circuit protection and low partial discharge.

    Scope of Application (2)

    Regional hub

    Regional power supply backbone nodes: prioritizing service life and maintainability.

    biandiana

    Product Description

    • 1 - Ultra-low loss & energy efficiency: Tier 1 energy efficiency rating; no-load loss reduced by 20%.
    • 2 - Excellent insulation performance: Partial discharge ≤40pC; compliant with IEC international standards.
    • 3 - High short-circuit withstand capability: Reinforced windings ensure operational stability and resistance to deformation.
    • 4 - Fully sealed & leak-proof: Retards oil aging; 30-year service life for the entire unit.
    • 5 - Stable heat dissipation & weather resistance: Suitable for outdoor operation in extreme temperatures; stable performance under load.
    • 6 - Quiet & eco-friendly operation: Operating noise ≤58dB; suitable for urban installations.
    • 7 - Comprehensive protection & easy maintenance: Flexible voltage regulation, intelligent monitoring, and high safety.
    product details
    product description

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    Product Features

    Reliable insulation

    Reliable insulation

    Low partial discharge levels and excellent withstand voltage performance.
    Product Features (1)

    High short-circuit resistance

    Reinforced windings ensure structural integrity against grid surges.
    Efficient heat dissipation

    Efficient heat dissipation

    Stable air cooling suitable for all outdoor operating conditions.
    Quiet and eco-friendly

    Quiet and eco-friendly

    Low operating noise, ideal for urban substations.
    bushiyaughis

    Online monitoring system

    Provisions available for monitoring parameters such as oil and winding temperatures.

    Main parameters

    Rated voltage: 110±8×1.25%/35/10.5 kV

    Rated capacity: 10–180 MVA

    Vector group: YNyn0d11

    Cooling method: ONAF, ODAF

    Execution standards

    VCG211294761765
    IEC 60076 Series
    International Electrotechnical Standards
    EN 60076
    EU Standards for Power Transformers
    ANSI/IEEE C57.12
    North American Industry Standards
    GOST 11677
    CIS Certification Standards
    AS/NZS 60076
    Australia/New Zealand Standards for Power Equipment
    ISO 9001 & ISO 14001
    Management System Standards

    Technical advantages

    VCG211335853348

    The Hanzhong Xinsanhuan 110kV oil-immersed transformer offers distinct technical advantages: it utilizes specialized simulation and design processes tailored for medium-to-high voltage levels, featuring an optimized, compact core and winding structure that is more streamlined than 220kV models and ideally suited for distribution within small-to-medium power grids. Manufactured using standardized, dust-free, and constant-temperature processes, the unit ensures low partial discharge and controllable losses, while its lightweight, sealed heat-dissipation structure enhances ease of operation and maintenance. Moisture-proof and anti-corrosion measures are optimized for the high-humidity and significant temperature fluctuations characteristic of the mountainous southern Shaanxi region. The product complies with both national and IEC international standards and undergoes comprehensive factory testing—including withstand voltage, short-circuit, and leak tests. Customizable options such as on-load tap-changing and intelligent monitoring are available, making it suitable for batch supply to county-level grids, industrial parks, and small-to-medium new energy step-up stations; with short production lead times and broad application versatility, it offers superior cost-performance compared to similar products in the industry.