66
9
Specifications
66
Chapter
9
Each measurement point of electrical power and computing equation of sum value
1P2W
Each measurement point
3P3W
sum value
Each measurement point of apparent power and computing equation of sum value
1P2W
Each measurement point
3P3W
sum value
Each measurement point of reactive power and computing equation of sum value
1P2W
Each measurement point
3P3W
sum value
Each measurement point of power factor and computing equation of sum value
1P2W
Each measurement point
3P3W
sum value
Sensor input of torque (voltage input)
Input resistance
1M
Ω
Signal input range
±5V
Non-linearity
0.02%/F.S.±1digit
Zero drift
0.2mV/°C RTI or less
Gain drift
0.01%/°C or less
Analog filter
First-order low-pass filter (-6dB/oct)
6k Hz
Sampling speed
1000 times/second
A/D resolution
14 bit binary
Approx. 1/10000 against FS
P
(i)
=
Σ
M-1
s=0
M
(
u
(i)
s
×
i
(i)
s
)
1
P
sum
= P
(UV)
+
P
(VW)
S
(i)
=
U
(i)
×
I
(i)
S
sum
=
(
S
(U)
+
S
(V)
+
S
(W)
)
3
3
S
(i)
-
P
(i)
Q
(i)
=
2
2
S
sum
-
P
sum
Q
sum
=
2
2
λ
(i)
=
S
(i)
P
(i)
λ
sum
=
S
sum
P
sum