Three Gorges Power Station launches its first intelligent monitoring system for turbine shaft sealing

Date: 2026-06-18

What if a hydropower turbine could get a real-time ECG?

Recently, the first intelligent monitoring system for turbine shaft sealing at the Three Gorges Power Station officially went into operation. Engineers often call the main shaft seal the turbine's "heart valve". It helps prevent water from rising along the rotating shaft and entering the generator, making it essential to the safe and stable operation of the unit.

From traditional manual monitoring to data-driven maintenance, the new system uses high-precision pressure, displacement and temperature sensors to collect key data in real time. Based on this live data, the system can build a 3D model of the main shaft seal, enabling real-time sensing, dynamic early warning and health assessment.

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By China Three Gorges Corporation

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