BL0952A BELLING [SHANGHAI BELLING CO., LTD.], BL0952A Datasheet - Page 7

• Manufacturer Part Number: BL0952A
• Description: Three-phase Active Energy Meter
• Manufacturer: BELLING [SHANGHAI BELLING CO., LTD.]

component and ac component whose frequency is
active power, that is:
voltage signal and the current signal. This cosine value is called as Power Factor (PF) of the two
channel signals.
°, the average active power is negative. This case indicates the user is using the electrical energy
reversely.
phase active power (the arithmetic sum or the absolute value sum), and supplying the frequency
signals proportional to the active powers.
active powers, the sum of the three-phase power is calculated as follows:
http://www.belling.com.cn
If
The average active power is related to the cosine value of the phase difference between the
When the phase difference between the voltage signal and the current signal is more than 90
The main function of the three phase measurement IC is calculating the sum of the three
If the BL0952A/BL6513/BL6511 is configured to execute the arithmetic sum of the three
P
P
p
p
TOTAL
) (
) (t
U
U
U
U
U
t
max
max
max
max
max
U
is called as the instantaneous power signal. The ideal
2
2
2
2
max
U
0
I
I
I
I
cos(
max
max
max
max
2
:
max
P
I
A
max
1 [
1 [
cos(
cos(
cos(
t
)
cos(
P
B
cos(
cos(
I
t
)
)
max
)
P
2
2
)
C
U
U
BL0952A/BL6513
BL0952A/BL6513
BL0952A/BL6513
BL0952A/BL6513
I
cos(
t
t
max
max
max
] )
)]
2
2
cos(
cos(
I
I
cos(
Fig.4
max
max
t
)
cos(
cos(
cos(
)
)
t
Total 7 Pages
The Effect of phase
U
U
2
2
)
max
max
- 7 -
)
t
t
2
)
I
I
I
cos(
max
max
2
max
w
)
sin(
cos(
. The dc component is called as the average
sin(
)
2
t
t
sin(
)
)
sin(
t
sin(
)
sin(
2
t
)
t
)
)
sin(
)
sin(
p
Three
Three- - - - phase Active
Three
Three
) (t
Energy Meter
Energy Meter
Energy Meter
Energy Meter
)
)
consists of the dc
phase Active
phase Active
phase Active
4/21/2009