SUBSTATION:Insulator chain.HV lightning arresters.HV Current Transformers (CT).HV disconnector.Earthing switch.MV and HV circuit breakers.Power transformer.Grounding resistor.Transformer secondary cable circuit.BT AND MT CIRCUIT BREAKERS:Retrofit and modernization of obsolete equipment.Cleaning the drive mechanism and cable outlet.Lubrication of the moving parts of the drive mechanism.Inspection of the operating mechanics.Checking the drive coils and spring-loaded motor, with electrical tests.Primary and/or secondary current injection test.Protection module tests (ABB, Schneider, GE, Siemens, Eaton cases)Electrical tests.ELECTRICAL CONSTRUCTION AND ASSEMBLY:Structural and organizational improvements to cables.Cable identification.Crimping terminals and connectors.Checking the torque of connections.Insulation and phase sequence tests.MOTORS & GENERATORS:Preventive maintenance + electrical tests.Installation, commissioning and start-up of rotating electrical machines.

Summary of activities performed: Substation maintenance, electrical tests (transformer ratio, ohmic contact resistance, energy analysis and thermography), maintenance of medium and low voltage circuit breakers, assembly of power panels and insulation resistance tests, assembly of electrical infrastructure.

Summary of activities carried out: Repairs to electrical panels, installation of sockets and lighting in warehouses.

Summary of activities performed: I assisted in the assembly of electrical panels, assembly of electrical infrastructure, laying of electrical cables.