• Electrical Substation Overview

Substation Function Types of Substation

• Electrical Power Transformer

Construction Principle of Operation Transformer Specification Transformer Connection Cooling System

• Transformer Operation

Transformer Loading Voltage Regulation Paralel Operation

• Power Circuit Breaker Overview

Purpose/Application Circuit Breaker Construction Types of Circuit Breaker Circuit Breaker Operation Circuit Breaker Selection

• Fundamentals of Protection

Need Forprotection Types of Fault Circuit Breaker Control Circuits Protection Relay Fundamentals Solid State Relays Digital Protection Devices

• Overcurrent Protection

Over Current Protection Devices Characteristics Application to Industrial Electrical Utilities Protection Application to Line Protection Relay Settings

• Relay Input Sources

VTs CTs CVTs CCVTs

• Overvoltage Protection

Overvoltage Sources Types of Arrester Arrester Selection

• Transformer Protection

Overload Differential Sudden Pressure Over Temperature Low Oil

• Line/Feeder Protection

Directional Comparison Blocking Unblocking Transfer Trip

• Coordination of Protection System

Primary and Back-up Protection Need for Coordination of Settings Relay/Fuse Coordination Relay/Recloser Coordination Fuse/Recloser Coordination

• Maintenance and Inspection
• Discussion and Cases Study