QDTB® Transformer
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XHV (Extra-High Voltage)

Voltage Levels

Voltage levels 245-800 kV for bulk power transmission over long distances.

XHV/EHV: 245-800 kV AC for bulk transmission (100-1,000 km). Lower current = reduced losses for same power. 345 kV: 400-1,000 MW; 500 kV: 1,000-2,000 MW; 750 kV: 2,000-4,000 MW.

Challenges: BIL 1,175-2,100 kV, complex field management, stringent PD limits, exceptional reliability. Typically autotransformer configurations.

See UHV for next class.

QDTB designs EHV transformers up to 500 kV meeting the most stringent international standards.

Need help with transformer selection?

QDTB engineers can help you choose the right equipment based on your specific requirements