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500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan

500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan 500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan
Introduction
Challenges
Customer Values
Other Cases
Case Center 500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan
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Case Center
Introduction
Overview

This project is part of the expansion of the Talimarjan Thermal Povver Plant (TPP) in Kashkadarya, Uzbekistan. The expansion includes the addition of two new combined cycle gas turbine (CCGT) units with a total capacity of approximately 900 MW CHINT supplied 3*167MVA, 500/230/38.5kV single-phase auto transformers (with all accessories) under tight deadlines. This project plays a key role in supporting Uzbekistan's energy security and improving the stability of the national grid.

500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan 500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan
Solutions

CHINT delivered a customized high-voltage auto transformer solution tailored to European standards, with efficient delivery in just 160 days.

500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan 500kV 167MVA Auto Transformer for 1700 MW Talimarjan TPP, Uzbekistan

Challenges

-Tight delivery timeline: The equipment had to be delivered within 160 days after

technical drawing approval, requiring fast-track production and logistics.

 

-Complex customization: High-voltage equipment requires tailored design to meet European and regional technical standards.

 

-On-site compatibility: Integration with existing power infrastructure demanded

strict adherence to technical interface specifications.

Serbia Serbia

Customer Values

Enhance power supply reliability and ensure power generation efficiency
Enhance power supply reliability and ensure power generation efficiency

With no-load loss at 49.7kW and load loss at 237.9kW-both below required levels-and partial discharge as low as <30pC, the transformer delivers highoperational reliability and improved power generation efficiency.

Shorten construction timelines and reduce overall project costs
Shorten construction timelines and reduce overall project costs

Its compact structure and lightweight design reduces site space and installation complexity. Combined with a fast 160-day delivery, it helps shorten construction time and reduce total project costs.

Support energy transition and regional development
Support energy transition and regional development

Withoperational noise at just 70dB-10dB lower than the standard-and lower thermal rise (e.g., hot-spot at 64.1K vs 69K limit), the transformer supports long-term stable operation, enabling power system modernization and regional development.

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