Functions
2.18 Reverse-Power Protection Application with Flexible Protection Function
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
303
First activate the function at „Settings --> General“ and select the operating mode „3-phase“ (figure 2-112):
Figure 2-112 Selection of the three-phase operating mode
In menu items „Measured Value“ and „Measurement Procedures“ „Active Power reverse “ or „Exceeding“ must
be set. If in menu item „Settings“ the box „Additional Parameters display“ is enabled, threshold value, pickup
delay time and trip delay time can be configured (Figure 2-113). As the power direction cannot be determined
in case of measured voltage failure, protection blocking would be sensible in this case.
Figure 2-113 Setting options of the flexible function
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