Transformer-Protecting-Relay-and-Devices.pptx

Electrical

1. Transformer Protecting Relay and Devices Explore the critical relays and devices that safeguard transformers, ensuring reliable power distribution. by Ravi Bhalerao EE4I-02

2. Overcurrent Relay Purpose Detects and trips during excessive current flow Protects Against Short circuits, overload conditions

3. Differential Relay 1 Compares Currents Incoming vs outgoing transformer currents 2 Detects Internal Faults Trips when currents don't match 3 High Sensitivity Responds to minor imbalances

4. Buchholz Relay Gas Detection Monitors for gas buildup inside transformer Sudden Oil Movement Trips on rapid changes in oil pressure Early Warning Alerts operators to internal issues

5. Sudden Pressure Relay 1 Rapid Pressure Rise Detects internal faults 2 Trips Transformer Shuts down to prevent damage 3 Faster Than Buchholz Responds in milliseconds

6. Gas Accumulation Relay Gas Detection Monitors transformer gas levels Alarm Triggering Alerts operators to gas buildup Transformer Protection Helps prevent catastrophic failure

7. Winding Temperature Indicator 1 Winding Temp Monitoring 2 Alarm Thresholds Notifies of overheating 3 Auto Tripping Trips transformer on extreme temps

8. Oil Temperature Indicator 70°C High Temp Alarm 90°C Trip Threshold 60°C Normal Range

9. Liquid Level Indicator 1 High Level Indicates oil overflow 2 Normal Level Optimal operating condition 3 Low Level Requires immediate attention

10. Conclusion: Importance of Transformer Protection Critical Role Safeguards reliability and safety Early Detection Identifies issues before failure Proactive Monitoring Enables predictive maintenance