World's Highest Voltage Class Transformers

World’s Highest Voltage Class Transformer,1200 kV,333.3 MVA Single Phase Autotransformer developed successfully by Vijai Electricals Ltd. Hyderabad with Indigenous Technology!

1200 kV (UHV) AC system is being envisaged as next transmission voltage to meet the long term power transfer requirement in the country.  Ultra high voltage (UHV) transmission schemes are driven by the need to transfer large amounts of electrical power from the generation resources to faraway major load centres. India is one of the most notable examples where in future, several UHV systems at 1200 kV AC shall be needed to transfer large quantum of power from various generation complexes in Chhattisgarh, Jharkhand, Orissa to load centres in Northern & Western regions.

Presently ,800 kV is the highest transmission voltage, introduced in 2007with commissioning of first 800 kV line from Sipat (Chhattisgarh) to Seoni (Madhya Pradesh).Several 800 kV transmission corridors are now under construction.

In next 5-6 years, 1200 kV AC system , is expected to emerge as main transmission level along with ± 800 kV HVDC, integrated with National Grid at 800kV AC and 400kV AC supported by ± 500 kV HVDC Network.

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