Substations equipment inspection and periodic maintenance

Sa？etak In this article we analyse frequency, actions regarding preventive maintenance frequency and inspections that must be carried out when dealing with 60-800 kV equipment (insulators, circuit breakers, isolator switches, instrument transformers and surge arresters), in order to keep them working properly, within manufacturers’ instructions, and to avoid premature ageing of the equipment, namely busbar system and insulators, circuit breakers, isolator switches, instrument transformers and surge arresters