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Dear all!

I have a question about the impedance characteristics in the distance relay used for transmission line protection. I understand that in the first quadrant we have a inductive load and in the fourth quadrant we have a capacitive load. I, however, do not understand what we measure in the second quadrant that I marked red. We would have a negative resistance. Can someone please help me with that?

https://dl.dropboxusercontent.com/u/3809800/impedance_characteristics.jpg [Broken]

Thanks,

Pauls

I have a question about the impedance characteristics in the distance relay used for transmission line protection. I understand that in the first quadrant we have a inductive load and in the fourth quadrant we have a capacitive load. I, however, do not understand what we measure in the second quadrant that I marked red. We would have a negative resistance. Can someone please help me with that?

https://dl.dropboxusercontent.com/u/3809800/impedance_characteristics.jpg [Broken]

Thanks,

Pauls

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