LA03-PB_05 [LEM]
Current Transducer; 电流传感器
| 型号： | LA03-PB_05 |
| 厂家： | 
LEM |
| 描述： | Current Transducer |
| 文件： | 总3页 (文件大小：183K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Current Transducer LA 03..20-PB
IPN = 3 .. 20 A
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
Electrical data
Primarynominal
Primary current,
Primary Current Primary Conductor
Type
Features
r.m.s. current 1) measuring range
Limitation3)
(A)
Diameter
(mm)
IPN (A)
IP (A)
· Closed loop (compensation) current
transducer using the Hall effect
· Voltage output
3
5
10
15
20
± 4.5
± 7.5
± 15
± 22.5
± 30
3
3
5
7.5
10
0.5
0.5
0.65
0.8
1.0
LA 03-PB
LA 05-PB
LA 10-PB
LA 15-PB
LA 20-PB
· Printed circuit board mounting
VC
IC
Supply voltage (± 5 %)
Current consumption
± 15
V
Advantages
app. 20mA + IPN/1200mA
· Excellent accuracy
· Very good linearity
RIS
VOUT
RL
Isolation resistance @ 500 VDC
Output voltage @ ± IPN, RL = 10 kW, TA = 25°C
Load resistance
> 500
± 4
> 10
MW
V
kW
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
Accuracy-Dynamic performance data
X
Accuracy @ IPN, TA = 25°C (without offset)
Linearity error (0 .. ± IPN)
<± 1.5
<± 1
<± 30
% of IPN
% of IPN
mV
e
L
VOE
VOH
Electrical offset voltage, TA = 25°C
Hysteresis offset voltage @ IP = 0;
after an excursion of 1 x IPN
Thermal drift of VOE (-10..+80°C)
(-20..-10°C)
Thermal drift of the gain (% of reading) (-10..+80°C) <± 0.04
(-20..-10°C) <± 0.08
Response time @ 90% of IP
Frequency bandwidth (- 1dB)2)
· Current overload capacity
<± 15
<± 1
<± 2
mV
mV/K
mV/K
%/K
%/K
µs
VOT
Applications
· AC variable speed drives and servo
motor drives
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
· Switched Mode Power Supplies
(SMPS)
· Power supplies for welding
applications
TCe
G
tr
f
< 3
DC .. 150
kHz
General data
TA
TS
m
Ambient operating temperature
Ambient storage temperature
Mass
- 20 .. + 80
- 30 .. + 85
< 12
°C
°C
g
1)
Notes : Calibration for 4V output is carried out at the primary norminal r.m.s.
current.
2)
Derating is needed to avoid excessive core heating at high frequency.
Primary current is limited by primary wire size. Permanent primary
3)
current should not exceed the specified value.
051102/6
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
Page 1/3
LEM Industrial
www.lem.com
Current transducer LA 03..20-PB
Isolation characteristics
Vd
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Creepage distance
Clearance distance
Comparative Tracking Index (Group IIIa)
2.5 4)
> 10
> 10
> 220
kV
m m
m m
dCp
dCl
CTI
Applicationexamples
According to EN 50178 and CEI 61010-1 standards and following conditions :
· Over voltage category OV 3
· Pollution degree PD2
· Non-uniform field
EN 50178
Rated isolation voltage
1000 V
CEI 61010-1
Nominal voltage
Cat III 1000 V rms
Cat III 300 V rms
dCp, dCl, Vw
Single isolation
Reinforced isolation
500 V
4)
Notes :
Between primary and secondary
051102/6
Page 2/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM Industrial
www.lem.com
Dimensions LA 03..20-PB (in mm. 1 mm = 0.0394 inch)
Front View
Right View
19 +/-1
15 +/-1
2
4
3
2
1
Primary Conductor
Bottom View
See the attached table
6 +/-1
6
5
4-0.5*0.25
Signal Pins
4
3 2 1
3-p=2.54
Terminal Pin Identification
Primary Conductor
Direction of Current Flow
Signal Pins
Part No. Diameter
5 (+)
6 (-)
1
2
3
-Vcc
0V
LA03-PB
LA05-PB
LA10-PB
LA15-PB
LA20-PB
0.5 d
0.5 d
0.65 d
0.8 d
1.0 d
+Vcc
4
Output
Safety
This transducer must be used in electric/electronic equipment
with respect to applicable standards and safety requirements
in accordance with the following manufacturer's operating
instructions.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can
carry hazardous voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious
damage.
This transducer is a built-in device, whose conducting parts
must be inaccessible after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
051102/6
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
Page 3/3
LEM Industrial
www.lem.com
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