SYSTEM
Stator Leak Monitoring System
- Calculate and record the rate and volume of hydrogen leaking from the generator into the stator water cooling system of the water-cooled stator windings.
- Continuous supply of treated air to maintain appropriate oxygen levels in the coolant
- Prevents stator winding insulation damage and copper corrosion of stator windings
System Description
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1
Sampling Method
- Sample gas is measured by sampling air from the vent pipe of the generator's cooling water tank.
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2
Sensors and Filtering
- Moisture removal and dust filtering are required, and this is achieved using two sensors to minimize contamination and ensure accurate measurements.
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3
ECD Type Gas Detector
- An Electrochemical Detection (ECD) type gas detector is used.
- It offers high sensitivity and stability, capable of measuring from minor leaks to changes in temperature.
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4
Hydrogen Detection Sensor
- A low-concentration hydrogen detection sensor is applied to measure hydrogen in the range of 0-10% volume using a gas dilution device.
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5
Protective Features
- Various protective functions are included.
- Flame Arrestor: Prevents the spread of flames
- Panel Inside Check: Verifies the status of internal panels
- Water Check in Pipe: Checks for water presence in the pipe
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6
User-Friendly HMI Configuration
- An easy-to-operate Human-Machine Interface (HMI) is designed for user convenience.
Operation Screen
- A 7-inch Touch Human-Machine Interface (HMI) is employed to provide a user-friendly experience.
- The HMI displays various information, including hydrogen concentration, hydrogen leakage rate, air injection flow, and dissolved oxygen levels.
- Additionally, it presents alarms, system status, and other relevant information for comprehensive monitoring and control.
SPECIFICATIONS
| Classification | Detailed information |
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| Operation |
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| Sensitivity |
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| Accuracy |
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| Display |
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| Data Storage |
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| Communications |
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| O/A Dimensions |
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| Environment |
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| Plant Air Supply |
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| Power source |
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| Injection Air Quality |
Air Treated by SLMS to Provide
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| Calibration / Replace |
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