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Inversion of Output-Related Measured and Statistical Values
The calculated, directional values in the operational measured values (power, power factor, energy and
minimum, maximum, and average values based on these) are normally defined as positive in the direction of
the protected object. This requires that the connection polarity for the measuring points used be correctly set
(also compare (_:8881:116) Neutr.point in dir.of ref.obj parameter of the measuring point
current, 3-phase). It is, however, possible, to set the "forward" direction for the protection functions and the
positive direction for the powers, etc., differently, for example, such that the active power import (from the
line to the busbar) is displayed positively. Then set the option P, Q sign in the affected function groups on
the reversed parameter. With the parameter not reversed (default setting), the positive direction for
the powers, etc., corresponds with the "forward" direction for the protection functions.
The affected values are given in detail in the Chapters 10.3 Operational Measured Values - 10.11 Statistical
Values of the Primary System.
Measured Values, Energy Values, and Supervision of the Primary System
10.2 Structure of the Function
1310 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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