Condition Assessment of a Gas Insulated Substation

This paper presents condition assessment of asset in HV gas insulated substation for maintenance management in industrial area. The scoring and weighting techniques are applied for condition assessment. The component of HV substation such as circuit breaker, disconnecting switch, earthing switch, high speed earthing switch, current transformer, voltage transformer and local control panel are evaluated. The 5 bays of a 115 kV GIS substation in industrial area are evaluated as example in the assessment program. The results show the health index of components, health index of bay and health index of substation in form of percentage. The known health index of substation and its component is useful information to manage the maintenance activity with the associated cost and to plan the effective maintenance scheduling for HV substation.