4 Functions
QE81WH4W
5) Frequency
Frequency
Multiplier
Resolution*
All setting ranges
-3
1 digit after the
decimal point
0.1 Hz
* Digits lower than the resolution are fixed to 0.
6) Electric energy, periodic electric energy
Full load power
W
*1
Multiplier
Resolution*
2
Range [kWh,kvarh]
Ⅰ
. W <
12 kW
-5
5 digits after the
decimal point
0.00001 –
9999.99999
Ⅱ
. 12kW
≤
W <
120 kW
-4
4 digits after the
decimal point
0.0001 – 99999.9999
Ⅲ
. 120kW
≤
W <
1200 kW
-3
3 digits after the
decimal point
0.001 – 999999.999
Ⅳ
. 1200kW
≤
W <
12000 kW
-2
2 digits after the
decimal point
0.01 – 9999999.99
Ⅴ
.12000kW
≤
W <
120000 kW
-1
1 digit after the
decimal point
0.1 – 99999999.9
*1
For calculating full load power W, refer to Table 4.2.1-1 (pages 4-5).
*2
Because the higher resolution than a typical watt-hour meter, the minimum digit values will
change more than 2 at once update. According to setting value of input voltage, primary current,
primary voltage of VT and the condition of load.
Table 4.2.1-1 How to calculate full load power
110
220
440
690
1100
2200
3300
6600
5
6
7.5
8
10
12
15
20
25
30
40
50
60
75
80
100
120
150
200
250
300
400
500
600
750
800
1000
1200
1500
1600
2000
2500
3000
4000
5000
6000
Primary voltage[V]
Pr
im
ar
y
c
u
rr
en
t[
A]
Ⅰ
Ⅱ
Ⅲ
Ⅳ
Ⅴ
Ｗ＜
12kW
12kW
≦Ｗ＜
120kW
120kW
≦Ｗ＜
1200kW
1200kW
≦Ｗ＜
12000kW
12000kW
≦Ｗ
＜
120000kW
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