ABB RELION 620 Series Technical Manual page 746

Section 4
Protection functions
740
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Non
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GUID-69E16240-232F-4B20-B2C0-7CD73E5376C1 V2 EN
Figure 375: Forward active overpower characteristics (a) and forward reactive
overpower characteristics (b)
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Non
Operating
operating
area
area
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Figure 376: Reverse active overpower characteristics (a) and reverse reactive
overpower characteristics (b)
Operating
area
P
P
(a)
1MRS757644 F
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Operating area
Non operating area
(b)
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Non
operating area
Operating area
(b)
Technical Manual
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P
620 series