# \#protection-testing
**URL:** https://community.opal-rt.com/tag/protection-testing/56.md
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## [Current Signal Phase Shift Compensation in HYPERSIM](https://community.opal-rt.com/t/current-signal-phase-shift-compensation-in-hypersim/2512)
**Author:** [@Suved](https://community.opal-rt.com/u/Suved)\
**Replies:** 2\
**Last updated:** [October 24, 2026, 10:26am UTC](https://community.opal-rt.com/t/current-signal-phase-shift-compensation-in-hypersim/2512 "2026-10-24T10:26:08Z")
Hi, We are using OPAL-RT, HYPERSIM along with an OPAL-RT amplifier hardware for voltage and current signal generation. We have observed a phase shift of approximately 3° between the voltage and current channels when usi…
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## [Updating RMS Value in Hypersim using Dashboard](https://community.opal-rt.com/t/updating-rms-value-in-hypersim-using-dashboard/261)
**Author:** [@Suved](https://community.opal-rt.com/u/Suved)\
**Replies:** 2\
**Last updated:** [October 14, 2026, 5:27am UTC](https://community.opal-rt.com/t/updating-rms-value-in-hypersim-using-dashboard/261 "2026-10-14T05:27:59Z")
Could you please guide me on how to change the RMS value of the sine wave generator in Hypersim software using the dashboard? I have attached a picture for reference and would like to update only the green-highlighted…
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## [Petroleum Simulation Software](https://community.opal-rt.com/t/petroleum-simulation-software/254)
**Author:** [@Labib\_Hugari](https://community.opal-rt.com/u/Labib_Hugari)\
**Replies:** 1\
**Last updated:** [October 9, 2026, 6:45pm UTC](https://community.opal-rt.com/t/petroleum-simulation-software/254 "2026-10-09T18:45:22Z")
The importance of simulation programs in the petroleum industry lies in well drilling operations, production management and development, and early prediction of problems before they occur.
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## [HYPERSIM model - distance protection](https://community.opal-rt.com/t/hypersim-model-distance-protection/203)
**Author:** [@IB\_1309](https://community.opal-rt.com/u/IB_1309)\
**Replies:** 3\
**Last updated:** [September 23, 2026, 7:10pm UTC](https://community.opal-rt.com/t/hypersim-model-distance-protection/203 "2026-09-23T19:10:13Z")
I want to test distance protection on a transmission line. I have set up a 110 kV network equivalent (source) at both ends, but I suspect there is an issue with the parameters of that 110 kV source. Does anyone know how …
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## [2-Winding 3-Phase Saturable Transformer with Tap Changer V1\_ V\_2](https://community.opal-rt.com/t/2-winding-3-phase-saturable-transformer-with-tap-changer-v1-v-2/173)
**Author:** [@cokeke](https://community.opal-rt.com/u/cokeke)\
**Replies:** 1\
**Last updated:** [September 8, 2026, 3:50pm UTC](https://community.opal-rt.com/t/2-winding-3-phase-saturable-transformer-with-tap-changer-v1-v-2/173 "2026-09-08T15:50:38Z")
I exchanged the transformer in Example Model for 87T Transformer Differential Protection Relay for a 2-Winding 3-Phase Saturable Transformer with Tap Changer When I open the Sensor form for the 2-Winding 3-Phase Satu…