Line Protection (1.0 CEHs)

Learning objectives

• Recall the purpose of Transmission Relay Loadability
• Identify the applicability of PRC-023-4 to functional entities
• Recall the process of coordinating protection between fuses and overcurrent protection relays
• Recall the difference between fuse saving and fuse blowing protection schemes
• Identify the strengths and weaknesses of using overcurrent protection relays
• Identify the strengths and weaknesses of using distance relays
• Recall how ground fault relay settings are different between distribution and transmission systems
• Recall the process by which mutual induction can cause false trips in adjacent lines
• Define overlapping zones of protection
• Identify methods of protection against voltage instability
• Recall the difference between manual and automatic load shedding

Course overview