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Protection Relays

Transformer Protection Relays Inspection & Maintenance

This course focuses on building comprehensive expertise in protection relays from various manufacturers, covering their design architecture, functions, and maintenance and troubleshooting techniques. Through hands-on activities, participants will enhance their practical skills in using device configuration and parameterization tools to ensure accurate setup and reliable operation.

Level

Expert

Course Modules

Course topics cover:

Safety precautions required for Relay Inspection and Maintenance.

Transformer Physical Parts in Details [Internal and External].

Transformer Vector Group [Delta-Star / Star-Delta and Auto].

Transformer Protection Theory of Operation. 

Transformer Differential Protection 

  • Restricted Earth Fault 

  • Over Excitation 

  • Transformer Mechanical Protections 

  • Buchholz 

  • Pressure Relief 

Simulation by Secondary Injection of:

  • Transformer Differential Protection (87T).

  • Restricted Earth Fault Protection(64REF). 

  • Over Flux Protection (24).

  • Standby Earth Fault. 

  • Transformer Stability. 

Disturbance Records extraction, comprehension, and analysis.  

Protection Logic Diagram of the Transformer Protection Scheme. 

Configuration of the Relay CID File. 

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