Testing Siemens 7SD522 PUTT Teleprotection Using RelaySimTest & OMICRON CMC

In this video, we demonstrate the testing of the PUTT (Permissive Underreach Transfer Trip) teleprotection scheme in the Siemens 7SD522 relay using OMICRON RelaySimTest and synchronized CMC test sets. The session explains the key differences between PUTT and POTT schemes, including send logic, trip logic, and operating principles. Practical testing is performed for various fault locations, fault types, single-infeed and double-infeed conditions, and busbar fault scenarios. The results are analyzed to verify the correct operation of the teleprotection scheme and the expected distance protection time grading. This video is intended for protection engineers, commissioning engineers, and relay testing specialists working with Siemens SIPROTEC relays and OMICRON testing solutions. #siemens #7SD522 #RelaySimTest #omicron #Teleprotection #PUTT #distanceprotection #relaytesting #powersystemprotection #electric #electricalengineering #protection 00:00 Introduction and PUTT Overview 00:42 PUTT vs POTT Operating Principle 02:21 RelaySimTest Configuration Review 03:35 Time Grading Test Without Teleprotection 05:46 PUTT Teleprotection Performance Tests 08:09 Line Fault Testing 09:32 Busbar Fault Testing 12:18 End-to-End Testing Setup