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PDF ( 数据手册 , 数据表 ) LA03-PB

零件编号 LA03-PB
描述 Current Transducer LA 03~20-PB
制造商 LEM
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LA03-PB 数据手册, 描述, 功能
Current Transducer LA 03 .. 20-PB
IPN =
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).
3 .. 20 A
Preliminary
Electrical data
Primary nominal
r.m.s. current
IPN (A)
3
5
10
15
20
Primary current
measuring range
IP (A)
± 4.5
± 7.5
± 15
± 22.5
± 30
Primary Conductor
Diameter
(mm)
0.5
0.5
0.65
0.8
1.0
Type
LA 03-PB
LA 05-PB
LA 10-PB
LA 15-PB
LA 20-PB
VC Supply voltage (± 5 %)
± 15 V
I C Current consumption
app. 20mA+ IPN/1200 mA
Vd
R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5
kV
RIS Isolation resistance @ 500 VDC
> 500
M
VOUT
Output voltage @ ± IPN, RL = 10 k, TA = 25°C
±4
V
RL Load resistance
> 10 k
Accuracy-Dynamic performance data
X
εL
VOE
VOH
εVOT
TC G
tr
f
Accuracy @ IPN, TA = 25°C (without offset)
Linearity (0 .. ± IPN)
Electrical offset voltage, TA = 25°C
Hysteresis offset voltage @ IP = 0;
after an excursion of 1 x IPN
Thermal drift of VOE
max.
Thermal drift(% of reading)
Response time @ 90% of IP
Frequency bandwidth (- 1dB)1)
< ± 1.5 % of IPN
< ± 1 % of IPN
< ± 30 mV
< ± 15 mV
± 1 mV/K
< 0.04 %/K
< 3 µs
DC .. 150 kHz
General data
TA Ambient operating temperature
TS Ambient storage temperature
m Mass
- 10 .. + 80 °C
- 15 .. + 85 °C
< 12 g
Notes : EN 50178 approval pending
1) Derating is needed to avoid excessive core heating at high frequency.
Features
Closed loop (compensation) current
transducer using the Hall effect
Voltage output
Printed circuit board mounting
Advantages
Excellent accuracy
Very good linearity
Low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
interference
Current overload capacity
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)
Switched Mode Power Supplies
(SMPS)
Power supplies for welding
applications
LEM Components
010118/2
www.lem.com












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