Siemens Reyrolle 7SR5, Руководство пользователя

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Parameter:
Export Power/Lag VAr
•
Default Setting:
+ve/+ve
With both
Export Power
(W) and
Lag VAr
(VAr) set to be +ve, the direction of energy transfer will
follow the IEC convention e.g. an induction motor consumes Watts and VArs, this is shown in Figure 3-4
as positive Watts and positive VArs.
[dw_7SR5_EnergyDirectionConvention, 1, en_US]
Figure 3-4 Energy Direction Convention
Setting either the
Export Power
(W) or
Lag VAr
(VAr) to be -ve, will reverse the direction of the
energy transfer for these quantities. So forward VAr will then be reported as
Imported Reactive
Energy
, and forward Watts will be reported as
Exported Active Energy
. See also
Power Protec-
tion
(32) and
Power Factor
(55) function elements.
Device Functionality
3.2 Device Configuration
Reyrolle 7SR5, Transformer Protection Device, Device Manual 49
C53000-G7040-C015-1, Edition 11.2019