UHV Power Transformers — view 1 of 8
    Ultra High Voltage
    500MVA
    Max Capacity
    765kV
    Voltage Class
    99.7%
    Efficiency
    40yr
    Design Life
    Ultra High Voltage · 400–765 kV

    UHV Power Transformers

    Ultra high voltage power transformers for the highest transmission-class applications. 200–500 MVA, 400–765 kV — leveraging global JV partnerships including Skipper ETS India for world-class UHV capability.

    IEC 60076
    IEEE C57
    ISO 9001
    ISO 14001
    Capacity Range
    200 – 500 MVA
    Voltage Class
    400 – 765 kV
    Cooling Methods
    ONAF / ODAF / OFAF / ODWF
    Standards
    IEC 60076 / IEEE C57
    Insulation
    Oil Immersed (Mineral / Ester)
    Core Design
    Step-Lap Mitre Grain-Oriented
    Installation Support available on request
    Support from an ETS engineer during installation and commissioning, available on request.
    Type Tested
    Warranty
    Global

    Engineering Features

    Short-Circuit Testing

    Independently witnessed short-circuit withstand testing — essential for UHV-class fault currents.

    Technical Data

    ParameterRange / Value
    Rated Power200 – 500 MVA
    Primary Voltage400 – 765 kV
    Secondary Voltage11 – 36 kV
    Frequency50 / 60 Hz
    Impedance12% – 18% (customizable)
    Vector GroupAs per specification
    Noise Level≤ 80 dB(A) at 1m
    Total LossesPer IEC/IEEE guaranteed values
    Temperature RiseTop oil ≤ 55K, Winding ≤ 60K
    Insulation LevelFull BIL / SIL as per UHV class

    Standard range parameters — custom specifications available on request.

    GCC Compliance & Trust Signals

    DEWA Approved

    Dubai Electricity & Water Authority vendor

    ADDC / AADC

    Abu Dhabi Distribution Company approved

    SEWA / FEWA

    Sharjah & Federal Electricity authorities

    ADNOC AVL

    ADNOC Approved Vendor List

    IEC 60076

    International standard for power transformers

    ARAMCO 17-SAMSS

    Saudi ARAMCO material specification

    ISO 50001:2018

    Energy Management System (LRQA-certified, UAE plants)

    Regional Overview

    Ultra High Voltage power transformers for GCC mega-projects and bulk transmission. 200 MVA to 500 MVA at 400 kV, 500 kV and 765 kV through our Skipper ETS India JV. Designed to IEC 60076 with short-circuit certification, full seismic qualification and 50 °C+ ambient derating. Our UHV portfolio supports NEOM, Saudi Arabia's 380/500 kV transmission build-out, the GCC Interconnection Authority and gigawatt-scale renewable-IPP interconnect at the Mohammed bin Rashid Al Maktoum Solar Park.

    Applications

    Where UHV Power Transformers Excel.

    01
    01

    GCC Super-Grid (765 kV)

    IEC 60076 UHV transformers for emerging 765 kV class GCC and MENA backbone transmission systems.

    02
    02

    Strategic GCC GSU

    Large UHV-class GSU transformers for Barakah Nuclear, NEOM Helios green-hydrogen and giga-scale solar projects.

    03
    03

    GCCIA Cross-Border Backbone

    UHV auto-transformers for GCC Interconnection Authority cross-border super-grid and Saudi-Egypt HVDC interconnection.

    04
    04

    Mega-Project Grid Backbone

    Backbone UHV transformers for NEOM, The Red Sea Project and other Vision 2030 mega-developments.

    FAQ

    Frequently Asked Questions

    Deployed in

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