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ABB Relion 670 series - Page 288

ABB Relion 670 series
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PHSELZ DLECND
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ANSI10000099-1-en.vsd
ANSI10000099 V1 EN-US
Figure 138: Difference in operating characteristic depending on operation mode when load
encroachment is activated
When FRPSPDIS (21) is set to operate together with a distance measuring zone the resultant
operate characteristic could look like in figure 139. The figure shows a distance measuring zone
operating in forward direction. Thus, the operating area of the zone together with the load
encroachment is highlighted in black.
Section 7 1MRK 502 066-UUS B
Impedance protection
282
Technical manual

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