TECHNICAL GUIDE · TEMISA POWER GEN
Preparing an outage for robotic generator inspection
Keeping the rotor installed can avoid an extraction operation. Robotic inspection still requires mechanical preparation, electrical release and a schedule that separates incompatible activities.
Inspection time is not total outage duration
A useful schedule separates preparation, system installation, testing, removal of inspection equipment, generator reassembly and release. Specialist time on site is not automatically the same as unit unavailability.
Duration depends on the core, access, included tests, site conditions and findings. The proposal should identify time for each activity, who performs it and what must be ready before the inspection starts.
Prepare access while keeping the rotor installed
Depending on configuration, shields, fan blades or other components must be removed to access the ends. Low-flux core testing may require preparation at both ends. Drawings and scope determine the required disassembly.
The work area must allow safe system installation and personnel access. Scaffolding, lighting, prior cleaning and component handling are coordinated as part of preparation. The robot performs inspection, not cleaning or repair.
Confirm electrical isolation and test power
The generator must be offline and released under the plant procedure. Low-flux core testing requires review of rotor-body insulation at least at one end, including possible grounding paths through bearings, seals and other components.
Test-equipment power requirements must also be confirmed. An available plant outlet does not establish compatibility of voltage, current capacity or connectors. Review must be completed before mobilization and verified during execution.
Coordinate the rest of the outage
Other electrical tests cannot run on the generator during robotic inspection. Welding, grinding, cutting and lifting can interfere with measurements and must be coordinated with specialists, even when connected to a different electrical circuit.
For a quotation, share the outage window, preliminary schedule, preparation responsibilities and site restrictions. TEMISA coordinates scope and interfaces so the customer understands readiness requirements, participant responsibilities and feasible execution timing.