Teleprotection in Power Systems: Theory, Schemes | POTT, PUTT & End-to-End Testing

Описание: 00:00 Intro & Theory
06:08 logic Schemes
11:38 POTT Scheme
16:37 PUTT Scheme
20:34 Relay Parameters
22:17 Test Cases

Description:
In this video, we explore the fundamental theory and testing of teleprotection schemes used in distance protection relays. Teleprotection enables fast and reliable fault clearing across the full length of transmission lines—especially when traditional distance protection zones aren't fast or selective enough.
You’ll learn about both underreach and overreach-based teleprotection schemes and how they apply logic based on remote communication between relays using OMICRON testing tools.

#energy #relaytesting #omicron #powersystemprotection #electricalengineering #energyprotection

📚 What You’ll Learn:
✅ Why Teleprotection is Needed
• Limitations of conventional zone 1/zone 2 distance protection
• The need for faster tripping (within 100% of line coverage)
✅ Teleprotection Concepts & Schemes
• Overview of schemes:
• PUTT (Permissive Underreach Transfer Trip)
• POTT (Permissive Overreach Transfer Trip)
• DTT (Direct Transfer Trip)
• BOP (Blocking Overreach Protection)
✅ Logic Behavior & Trip Scenarios
• Relay-to-relay communication
• What happens for in-zone and beyond-zone faults
• Examples of tripping behavior under different logic paths
✅ POTT Scheme Explained in Detail
• Trip logic when faults are inside the line vs. behind remote terminals
• Z1B extension and logic flow using Send/Receive signals
• How POTT ensures fast, coordinated relay response
✅ PUTT Comparison
• How PUTT enables rapid trip if both relays detect zone 1 or extended zone pickups
• What happens during reverse faults or communication failures