IDMT Relay (Inverse Definite Minimum Time Relay) are protection relays used on power system transmission lines to ensure that the line current doesn't exceed safe values and if it does, triggers the circuit breaker to protect expensive equipment and personal.
In this tutorial we take a look at the two main features of an IDMT Relay which are the Time Multiplier Settings (TMS) and the Plug Settings, this functions allow the relay to respond timeously during short circuit fault current on a transmission lines or in a transmission substation.
To complete this tutorial watch:
Part 2: • IDMT Relay time curren...
Part 3: • IDMT Relay time curren...
Explore the IDMT (Inverse Definite Minimum Time) relay time current characteristics curve with our detailed tutorial. Designed for electrical engineers and protection system specialists, this video explains the principles behind IDMT relays, how to interpret time current curves, and practical applications in power distribution and protection. Learn how to analyze relay settings, coordinate protection schemes, and ensure reliable operation in electrical networks.
🔧 What You’ll Learn:
Understanding IDMT Relay Operation Principles
Interpreting Time Current Characteristics Curves
Setting IDMT Relay Parameters
Coordinating Relay Protection Schemes
📌 Key Topics Covered:
IDMT Relay Basics and Functions
Time Current Characteristics Curve Analysis
Setting Relay Parameters for Various Applications
Coordination of Protection Devices
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🔗 Related Videos:
Introduction to Electrical Protection Systems
Coordination of Protective Relays
Advanced Topics in Power System Protection
Watch part 1 of this tutorial to see how we got to this point:
• IDMT relay time curren...
Part3 tutorial shows how to plot the measured values using MS Excel
• IDMT Relay time curren...
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