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Power Analyzers
Appendix A
79
Fundamental
Impedance
Parallel
Equivalence
Electrical Energy
(Wh)
Electric Energy +/-
in each update cycle
Electric Quantity
Electric Quantity
+/-
in each update cycle
Torque
Rotation Speed
Mechanical Power
Mechanical
Energy
Measurement
Function
Calculation Formula
W
update
1
3600
------------
ptd
=
if W
update
0 W
+
,> W
+
W
update
+=
if W
update
0 W
-
,< W
-
W
update
+=
q
update
1
3600
------------
itd
=
if q
update
0 q
+
,> q
+
q
update
+=
if q
update
0 q
-
,< q
-
q
update
+=
T torque=
nspeed=
P
M
2π
60
------
torque speed⋅=
E
M
1
3600
------------
P
M
td
0
t
sr
=
1.888.610.7664 sales@GlobalTestSupply.com
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