Development of CMMS (Computerized Maintenance Management System) in Yogyakarta electric power distribution network company to support the strategic maintenance

Reliability of service has always been an important priority in electric delivery planning and operation; traditionally it was treated as an implicit goal. Reliability as normally applied to power distribution means continuity of service to the utilitypsilas customers. In the term of a glossary of reliability standard, reliability is defined as the ability of the power delivery system to make continuously available of sufficient voltage, of satisfactory quality, to meet the customerpsilas need. In the development country like Indonesia to reach a high reliability index is still very difficult. Yogyakarta province as a part of Indonesia, the electric power supply is managed by Yogyakarta electric power distribution region that serve more than 650.000 customers and support by more than 11.000 power distribution transformers. These transformers are distributed along the line in the length of more than 10.000 kms. To improve the reliability of service one aspect to be paid attention is maintenance management of all the distribution equipments. With supported by CMMS system that is being developed, all of the maintenance management aspects are included in the system. The CMMS is developed on based of digitalizing distribution line networks, customerspsila connection, inventory of the assets, and man power. This CMMS also supported by GIS in conjunction with the reduction of the time needed to restore the system during fault.