Reliability Improvement &
Assessment Study

Following Activities are carried out :

• Current Transformers
• Potential Transformers
• Transformer Testing
• Interfacing with control room equipments
• Relay panel and Remote Tap changer control panel, SCADA system, DCS etc.

• Visual / Physical Inspection
• Site Conditions

1. Prepare check list for individual equipment
2. Conduct the Tests
3. Submit test reports with recommendation for immediate implementation for any remedial measures
4. Review Compatibility due to aging of,
• Equipment
• Protection Systems (Relays)
• Vis-a-Vis Present day technology

1. Switchgear and switchboard assemblies
2. Transformers
3. Cables
4. Metal enclosed busways
5. Circuit Breakers
6. Protective Relays
7. Instrument Transformers
8. Grounding Systems

1. Motors
2. Generators

1. Review of Grounding, Earthing & Bonding of electrical Systems
2. Defined path for return of fault current back to source
3. Positive operation of ground fault relaying (by Testing)

1. Load flow, Short Circuit Studies:
   

   Conduct load flow & short circuit studies to verify equipment rating under steady state and transient conditions

2. Relay setting-Relay Co-ordination :
   

   Comprehensive relay setting & Co-ordination exercise to achieve sensitive, selective and speedy fault clearances.

3. Generator Islanding-Load Shedding Scheme
   

   Islanding and Load shedding studies to save most critical loads with available generation in case of emergency and to avoid complete black out.