How to Test the POTT Teleprotection Scheme on the SEL 411L Relay?
Teleprotection is essential to ensure the quick operation of protection systems in transmission lines, increasing the safety and reliability of the electrical grid. Among the various available schemes, POTT (Permissive Overreaching Transfer Trip) is widely used, especially in high-voltage transmission networks.

Challenges in Teleprotection Testing

Conducting tests on teleprotection schemes requires specialized tools and precise signal synchronization. For effective testing, test sets must be used, along with synchronization signals, which can be obtained through:
✅ CE-GNSS (equipment developed by Conprove).
✅ GPS integrated into Conprove Test Sets.
✅ Signals via IRIG-B.
✅ IEEE 1588 Protocol.

Proper synchronization enables end-to-end testing, ensuring that simulated fault conditions are as close as possible to real-life situations. This way, the teleprotection scheme is tested as an integrated system, evaluating its performance and operating time.

Testing the POTT Scheme on the SEL 411L Relay

Conprove’s software provides full support for testing all teleprotection schemes, including underreaching and overreaching, allowing for a detailed evaluation of protection relay performance.

If you need to test a POTT teleprotection scheme using an SEL 411L relay, Conprove has the ideal solution to assist you!

📌 Check out the full tutorial with a step-by-step guide at the link:
🔗 https://conprove.com/tutorias/tutorial-teste-rele-sel-411l-teleprotecao-pott-ctc/