Site incharge Shri SKB Valli sir enforced to all must follow safety all time.
Safety precautions for operating a 33kV 18 MVA Wilson transformer during a generation schedule primarily involve rigorous adherence to established electrical safety procedures, constant monitoring of the transformer's condition, and restricting access to only qualified personnel.
Key Safety Precautions
Follow Established Procedures:
Lockout/Tagout (LOTO): Always follow strict LOTO procedures when any work, maintenance, or inspection needs to be done on the transformer to ensure it is de-energized and isolated from all power sources.
Permit-to-Work (PTW): All activities should be conducted under a formal PTW system, which ensures a thorough assessment of hazards and necessary control measures are in place before work begins.
Test Before Touch (TBT): Always verify the absence of voltage using a certified non-contact voltage indicator or multi-meter before touching any conductor or component, even after de-energizing.
Personnel Safety:
Qualified Personnel Only: Only trained and certified individuals with specialized knowledge of high-voltage systems should work on or near the transformer.
Personal Protective Equipment (PPE): Appropriate PPE must be worn at all times, including insulated gloves, safety glasses, face shields, arc-rated clothing, and insulated boots.
Safe Distance: Maintain a safe distance from live equipment and use caution signs to warn unskilled personnel about potential dangers.
Transformer Operation & Maintenance:
Regular Inspections: Conduct regular checks for unusual noises, oil leaks, or abnormal temperatures.
Proper Grounding: Ensure the transformer is properly grounded at all times to prevent static electricity buildup and minimize the risk of electric shock.
Avoid Overloading: Operate the transformer within its specified voltage and current ratings to prevent overheating and potential damage. The 18 MVA rating must not be exceeded for extended periods.
Environmental Control: Ensure a clean, dry work area, free from moisture, water, and flammable materials.
Fire Safety: Keep fire extinguishers nearby and have a fire suppression system in place due to the presence of transformer oil.
Emergency Planning: Have a comprehensive emergency response plan, including evacuation procedures, first aid kits, and contact information for emergency services.
By strictly following these safety measures, operators can significantly mitigate the risks associated with high-voltage transformers during generation schedules, ensuring both personnel safety and reliable equipment operation.
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