High-voltage Electrical Equipment Maintenance Key Points

High-voltage Electrical Equipment Maintenance Key Points

Daily Maintenance

1. Visual Inspection

   • Check equipment surface cleanliness
   • Observe for abnormal heating
   • Check connection point tightness

2. Functional Testing

   • Operating mechanism flexibility test
   • Signal indication check
   • Protection device function verification

Periodic Inspection

1. Insulation performance testing
2. Mechanical characteristics testing
3. Relay protection calibration

Maintenance Precautions

• Must power off before maintenance
• Use specialized tools
• Record maintenance data