Calculations
(continued)
Description
Abbreviation
Wiring Configuration
Formula
Units
Precision
Total Harmonic
unsigned power
Huspower-a
All
=
Watts
+/- 5%
Huspower-b
Huspower-c
Huspower-d
Total Harmonic
signed power
Hspower-a
All
=
Watts
+/- 5%
Hspower-b
Hspower-c
Hspower-d
Transformer K
Factor
HIxfmrk-a
All
K =
None
+/- 5%
HIxfmrk-b
HIxfmrk-c
HIxfmrk-d
Transformer De-
Rating Factor
HIxfmrdrat-a
All
=
Defined in IEEE
C57.110-1998
None
+/- 5%
HIxfmrdrat-b
HIxfmrdrat-c
HIxfmrdrat-d
Volts Under-
Deviation
HVudev-a
HVudev-b
HVudev-c
HVudev-d
All
I
f result is > V
nom
then
value is 0
Where:
V
nom
is Declared
Nominal Voltage
V
rms
is 200ms RMS
per 61000-4-30
%
+/- 1%
HVudev-ab
HVudev-bc
HVudev-ca
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