Introduction
SPACOM protection and control equipment, introduced in 1984, is widely used for power system protection globally. Despite their reliability, these electronic devices are susceptible to environmental wear and tear, necessitating preventive maintenance to ensure continued protection.

Preventive Maintenance
During the warranty period, service and repairs are covered. Post-warranty, regular inspections and servicing are recommended to maintain relay functionality and availability. Scheduled preventive maintenance extends relay life and prevents unplanned repairs. Regular testing is also advised. Retrofit is suggested for relays over 30 years old or when new features are needed.

Workflow in Practice
The preventive maintenance process begins with gathering information about installed relays through site audits or inspections. ABB then prepares a maintenance plan and provides necessary hardware kits. Maintenance involves replacing certain hardware modules and testing relays to ensure functionality. Documentation and future maintenance recommendations are provided.

Replaceable Hardware
ABB offers hardware kits based on statistical data, including power supply and output relay modules, with a two-year warranty for replacements.

Protecting Your Investment
The preventive maintenance concept is cost-effective, extending relay life and maintaining protection capabilities. It allows for flexible investment planning by spreading relay replacements over time.

Service Recommendations
Recommendations vary based on relay age and functionality needs, with preventive maintenance and retrofit options available.

Contact Information
For more information, contact your local ABB representative or visit their website.