ESP Overhaul & Maintenance Work

Comprehensive overhaul and maintenance of one unit of Electrostatic Precipitator (ESP), including electrical testing, equipment replacement, and relay protection system upgrades.

• Boiler Type: Circulating Fluidized Bed (CFB) Boiler
• Boiler Capacity: 75 Ton/hr
• Operating Pressure: 100 BarG
• Steam Temperature: 550°C
• Turbine Type: Back Pressure Steam Turbine
• Power Output: 9.9 MWe

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Scope of Work (SOW)

• Electrical inspection and testing:

  • Transformer oil resistance checking

  • DC Bus voltage measurement

  • Relay testing:

    • 27/59 UV (Under/Over Voltage)

    • 50/51 OCR (Overcurrent Protection)

    • 50N (Earth Fault)

    • 81 (Frequency Relay)

• Replacement and installation:

  • Circuit Breaker replacement for electrical panel

  • ESP Hopper Knocking Actuator replacement

  • Short Circuit Relay installation

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Project Value

1.97 Million THB

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Project Duration

17 March – 6 April 2023