Preventive Maintenance of Substations

Preventive maintenance will help minimize substation failures. Preventive maintenance for substations is recommended at least once a year with the following minimum preventive measures:

• Lubrication and verification of the physical conditions of the transformer components.

• Inspection and calibration of the arcing security chambers of the sectionalizer system.

• Verification of each insulator to ensure the absence of cracks.

• Testing and verification of the grounding systems inherent to the cabinet and the relief cones.

• Cleaning and tightening of components.

• Internal cleaning and connection of the substation's metal cabinet.

• Testing and measurement of the substation's grounding system.