Power Systems Protection
- Introduction:
• Necessity of power system protection
• Principles of protective relays
• Functioning of circuit breaker
• Main and backup protections
• Overlapping zone of protection
- Fault Analysis in Power System (review):
• Symmetrical faults
• Symmetrical components and unsymmetrical faults
- Protection Voltage and Current Transformers:
• Characteristics of current transformers
• model of current transformers
• Performance of current transformers
• Voltage (potential) transformers
- Overcurrent and Earth Protections:
• Types of overcurrent relays
• Operating principles of inverse overcurrent relays
• Earth fault and other overcurrent relays
• Coordination of inverse overcurrent relays
- Fuses:
• Definition and characteristics of fuses
• Functional classification of fuses
• Types of fuse
• Coordination principles
- Distance Protection:
• Operating principles of distance relays
• Construction of distance relay
• Types of distance relay
• Inputs of distance relay
• Coordination of distance relay
- Differential Protection:
• Current differential protection
• Differential protection principles
- Protection Voltage and Current Transformers:
• Characteristics of current transformers
• model of current transformers
• Performance of current transformers
• Voltage (potential) transformers