FREJA and SMRT Digital Twin high fidelity simulator
The FREJA and SMRT Digital Twin is the first of it’s type to be created and is a functional digital twin of Megger's relay test systems, FREJA and SMRT. This pioneering technology enables you to virtually test Siemens SIPROTEC 5 devices through Siemens’ cloud-based SIPROTEC DigitalTwin. The relay tests are performed online, before the physical devices are accessible, and with tested and approved protection settings, only a subset of the tests need to be repeated on the physical devices to ensure correct input and output hardware and connections.
I can’t find my digital twin
If the “Megger Digital Twin Test Set” button does not appear when entering the connection screen, please make sure you have a PowerDB version 11.2.10.130 or later and that your Digital Twin license is activated.
You activate the Digital Twin in the RTMS software. Click on the “System configuration” icon and go to the system tab and click the “Megger licensing” button. There, you will need to enter your Digital Twin serial number.
Note: Internet connectivity is required to activate the license.
If you haven’t got the license, you will need to source it from Megger, either with a monthly (part number 1015-22MON) or annual (part number 1015-22) subscription.
How do I select or change the digital twin instrument when I run the application?
Normally, you select the type of digital twin when you connect, but it is possible to change inside the application by clicking on the “Change instrument” icon. You will then be able to select the instrument you want to simulate from the list.
How do I find test results?
The digital twins perform what is called open-loop test. In this test, there is no feedback loop to the test instrument. With that said, the results and the relay response are viewed at the relay digital twin front panel or in the disturbance recorder.
What are the criteria used to evaluate whether the test has been passed or failed?
The specific values for the tolerances should be provided in the relay's manual or from the local test procedures. Since it is an open-loop test, the results are provided in the disturbance recorder.
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