Why Test for Partial Discharge?
Breakdown Maintenance
High Repair or replacement costs
Preventative Maintenance (Time Based Maintenance)
Scheduled during planned outages
Predictive Maintenance (Condition Based Maintenance)
Offers best benefits – maintenance costs and insulation life
Requires on-line machine condition monitoring systems
How to prevent Motors and Generators from failure in-service?
– Need a predictive maintenance tool
1. 50% due to bearing/vibration problems – Mechanical
SOLUTION: On-Line Vibration Monitoring
2. 40% due to Stator Insulation Problems – Electrical
SOLUTION: On-Line Partial Discharge Monitoring
3. 10% due to rotor problems – Electrical
SOLUTION: On-Line Flux or CSA Monitoring