YOKOGAWA CW500, Getting Started Manual, Page: 72 / 87

49
IM CW500-02EN
Volt-ampere hours +WS [VAh]
Display digits 6 digits, unit: m, k, M, G, T
Display range
0.00000 mVAh to 9999.99 TVAh
*
OL is displayed when the display range is exceeded.
Equation
( )
= +
∑
i
ci
S
h
WSc
1
h: integration time (3600 s), c: measurement channel,
i: data point No.
1P2W-1 to 4 +WS
1
, +WS
2
, +WS
3
, +WS
4
, +WS
sum
1P3W(3P3W)
-1 to 2
+WS
1
, +WS
2
, +WS
sum1
+WS
3
, +WS
4
, +WS
sum2
+WS
sum
3P3W3A(3P4W) +WS
1
, +WS
2
, +WS
3
, +WS
sum
Reactive WQ [Varh]
Display digits
6 digits, unit: m, k, M, G, T (match with
WS +
)
Display range
0.00000 mvarh to 9999.99 Tvarh (match with
WS +
)
*
OL is displayed when the display range is exceeded.
Equation Leading phase
( )
+ = +
∑
i
ci
Q
h
c WQc
1
_
,
Lagging phase
( )
− = +
∑
i
ci
Q
h
c WQi
1
_
,
h: integration time (3600 s), n: system No.,
c: measurement channel, i: data point No.,
* Lagging phase:
when Q
≥ 0, leading phase:
when Q
<0
1P2W-1 to 4 +WQ
1
, +WQ
2
, +WQ
3
, +WQ
4
, +WQ
sum
1P3W(3P3W)
-1 to 2
+WQ
1
, +WQ
2
, +WQ
sum1
+WQ
3
, +WQ
4
, +WQ
sum2
+WQ
sum
3P3W3A(3P4W) +WQ
1
, +WQ
2
, +WQ
3
, +WQ
sum
Specifications