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Drawing the MHO characteristic in GEC PYTC relay

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For example, we consider the PYTC relay to manually draw the distance characteristic.

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PYTC is actually a model of the PYTS relay used to protect systems including underground cables,

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as well as systems consisting of cable and airlines combination.

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The Mho characteristic in this relay makes the Distance function available to protect these systems.

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The modules on this relay allow adjusting the protection zones based on different parameters.

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assume the different element settings of the modules in this relay as follows:

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In this case, considering the angle of the line is equal to 66 degrees, we add three Mho zones.

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The first zone features a forward with a reach of 5.1 ohms and an angle of 66 degrees.

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The second zone haves a forward characteristic of 7.65 ohms reach and an angle of 66 degrees,

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and finally the third zone 16.78 ohms reach with the same angle.

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After this, you can also manually enter the trip time for each zone.