Acrel AMC Series - Display Example

8
5.2 Display Example
5.2.1 The operation steps of checking the current, voltage, power, electric energy and frequency of amc72 / 96 are
shown in FIG. 13 and FIG. 14.
AMC72 / 96 three phase watt hour meter:
tot al h arm on ic di st or ti on of t he cu rrent
cu rre nt
P、 Q、 λ
ab sorp tiv e a ctive e lectric energy
re lease a c tiv e ele c tric e nerg y
inductive reactive e lectric e n e rgy
capacitiv e re a c tive ele ctric energy
F、 2D I2DO
4DI2 DO
pa hse volt age
li ne volta ge
tot al h armo nic dist ortion of t he V olta ge
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
freq uency
The k indica tor lig ht is on , ind icating that th e unit o f ele ctric en ergy is kWh. Wh en re ading th e
elec tric ene rgy, th e second row of digit al tube s and th e thi rd row o f digit al tubes are
cont inuous, as show n in the figu re on th e left, the ele ctric energy is 1234 56.78kWh ;
Simi larly, t he M in dicator light s up to MkWh.
three ph ase po wer factor
Dema nd and
occu rrence t ime
V 1
1
P
V 2
2
Q
V 3
3
λ
k
M
At 1 1:26 on Novembe r 19, th e
maxi mum dema nd of a ctive po wer
was 0.879kw
Figure 13