BL0952A BELLING [SHANGHAI BELLING CO., LTD.], BL0952A Datasheet - Page 10

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

changes from 45Hz to 65Hz, the complete machine error due to the frequency change is less than
0.1%. In such, the meter designed for the 50Hz input signal can be used on the transmission-line
system of electric power whose frequency is 60Hz.
BL0952A/BL6513/BL6511 current channels, which are fully differential voltage inputs. IAP, BP,
and ICP are the positive input for IAN, IBN, and ICN, respectively. The maximum peak
differential signal on the current channel should be less than
sinusoidal signal) for the specified operation.
this analog input. Voltage channels are a pseudo-differential voltage input. VAP, VBP, and VCP are
the positive inputs with respect to VN. The maximum peak differential signal on the voltage
channel is
may have the phase match error (mainly due to different RC constant and different phase delay).
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Additionally, this structure can ensure the frequency characteristic. When the input signal
Current Channels
The
Fig.7 shows a typical connection diagram for the one current channel (IA).
Voltage Channels
The output of the line voltage transducer is connected to the BL0952A/BL6513/BL6511 at
Notes: Because of the various external devices, the current channel and the voltage channel
IP
PHASE NEUTRAL
voltage
500
mV
PHASE NEUTRAL
PHASE NEUTRAL
outputs
(
Fig.8 Typical Connections for Voltage Channels
Fig.7 Typical Connection for Current Channels
353
CT
Rb+Rv=RF
Ra >> RF
mV
AGND
BL0952A/BL6513
BL0952A/BL6513
BL0952A/BL6513
BL0952A/BL6513
from
Ra
rms for a pure sinusoidal signal) for the specified operation.
Rb
PT
AGND
AGND
AGND
the
Rb
Rv
Total 10 Pages
±500mV
±500mV
CF
±500mV
AGND
- 10 -
current
AGND
RF
RF
RF
CF
CF
CF
RF
RF
AGND
AGND
AGND
transducers
CF
CF
AGND
AGND
VAP
VAP
VN
VN
500
mV
IAN
IAP
+
+
-
-
are
Three
Three- - - - phase Active
(
Three
Three
353
Energy Meter
Energy Meter
Energy Meter
Energy Meter
+
-
connected
mV
phase Active
phase Active
phase Active
rms for a pure
4/21/2009
to
the