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PDF AHR-B5 Data sheet ( Hoja de datos )
| Número de pieza | AHR-B5 | |
| Descripción | AC/DC Current transducer | |
| Fabricantes | LEM | |
| Logotipo |  |
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AC/DC Current transducer AHR-B5
The transducer for the electronic measurement of DC & distorted AC
waveform currents, with galvanic isolation between the primary circuit
(power) and the secondary circuit (measurement).
True RMS 0-5 V voltage output.
IPN = 500 .. 2000 A
Electrical data
Primary nominal
DC & AC current
IPN (At rms)
500
800
1000
1500
2000
Primary AC current
max. peak value 1)
IP (A)
2000
2500
2000
2500
3000
Output voltage
(Analog)
VOUT (VDC)
0-5
0-5
0-5
0-5
0-5
R L Load resistance
VC Supply voltage
I Current Consumption
C
VSL Output voltage limitation
Î Overload capability (Ampere Turns)
P
Performance data
X
εL
VOE
TCV
OE
TCV
OUT
tr
BW
Accuracy @ IPN, TA = 25°C (excluding offset)
Linearity error (1% of IPN .. ± IPN)
Electrical offset voltage, TA = 25°C
Temperature coefficient of V (0 .. + 60 °C)
OE
(- 40 .. + 70 °C)
Temperature coefficient of V (% of reading)
OUT
Response time to 90% of IPN step
Frequency bandwidth (±1 dB)
General data
TA
T
S
m
IPxx
Ambient operating temperature
Ambient storage temperature
Mass
Protection degree
Type
AHR 500 B5
AHR 800 B5
AHR 1000 B5
AHR 1500 B5
AHR 2000 B5
≥ 10
kΩ
+ 20 .. 50 V DC
35 mA
<7 V
30000
At
< ± 1 % of IPN
< ± 1.0 % of IPN
< ± 1.0 % of IPN
± 2.0 mV/K
± 4.0 mV/K
± 0.15 %/K
< 150
ms
DC, 20 .. 6000Hz
- 40 .. + 70
- 40 .. + 85
650
IP20
°C
°C
g
Features
• DC + distorted AC waveform currents
measurement
• True RMS output
• Busbar or panel mounting
• Split core type
• Insulated plastic case recognized
according to UL94-V0.
Advantages
• High isolation between primary and
secondary circuits
• Eliminates insertion loss
• Easy installation.
Applications
• AC power supplies or Motors:
True RMS current sensing - the most
accurate way to monitor power supply
or motor input power
• VFD Controlled Loads:
VFD output current monitoring to
indicate how the motor and the
attached load are operating
• SCRs or Switch-mode Rectifiers:
Accurate measurement of output
current
Note :
1) The max. peak AC current is the highest peak level of the primary signal that is
taken into account for accurate True r.m.s. calculation.
Yet the device is designed for maximum continuous true r.m.s. value equal to IPN,
whereas the output is limited by the above specified output limitation.
• Renewable Energy Installations or
Backup Batteries:
Continuous condition minitoring
allowing automatic failure detection/
anticipation.
Application domain
061128/6
• Energy and Automation
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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