Identify the design
Record the generator OEM, model and end-shield joint arrangement. Check the approved material specification.
GENERATOR SEALING
End-shield joints.
Generator integrity.
NIEL-SEAL in hydrogen-cooled turbogenerator maintenance: a principal PSC application in India.
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NIEL-SEAL / INDUSTRIAL SEALING
The joint is part of a sealing system.
End-shield interfaces require equipment-specific materials and maintenance procedures.
Hydrogen-cooled turbogenerators
Some large generators use hydrogen as the cooling medium inside their casing. Controlling leakage supports safe operation and the integrity of the cooling system.
End shields form part of the casing boundary. Their split joints and interfaces with the stator frame are among the joints addressed by the equipment’s sealing design.
Compound channels & interfaces
Some designs provide grooves or channels at these interfaces. Sealing compound is introduced using specialised application equipment as specified by the OEM. This is distinct from applying a generic sealant to any joint face.
NIEL-SEAL / INDUSTRIAL SEALING
Plan the maintenance requirement.
The correct compound is one part of a controlled overhaul process.
Confirm the material
Match the grade, pack size and current product documentation to the approved maintenance requirement.
Prepare for overhaul
Agree delivery timing, batch traceability and storage requirements before the planned shutdown.
NIEL-SEAL / INDUSTRIAL SEALING
PSC’s Indian application experience.
PSC’s supplied application history includes NTPC, JSW Power, Nayara and other industrial power-generation facilities.
Customer references describe PSC’s experience and do not imply endorsement or approval of this website or a universal approval for every generator.
Discuss a generator maintenance requirement