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LA150-P fiches techniques PDF

LEM - Current Transducer LA 150-P

Numéro de référence LA150-P
Description Current Transducer LA 150-P
Fabricant LEM 
Logo LEM 





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LA150-P fiche technique
Current Transducer LA 150-P
IPN = 150 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).
Preliminary
Electrical data
IPN Primary nominal current
150 A
IP Primary current, measuring range
0 .. ± 200 A
RM Measuring resistance
TA = 70°C TA = 85°C
RM min RM max RM min RM max
with ±15V @± 200 A max
0 30
0 15
ISN Secondary nominal current
75 mA
KN Conversion ratio
1 : 2000
VC Supply voltage (± 5 %)
± 15 V
IC Current consumption
app 16 + ISN
mA
Vd
R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5
kV
Accuracy-Dynamic performance data
X
εL
IO
Iom
IOT
tr
di/dt
f
Accuracy @ IPN, TA = 25°C @± 15V (± 5 %)
< ± 1 % of IPN
Linearity (0 .. ± IPN)
± 0.25 % of IPN
Electrical offset current @IP = 0, @TA = 25°C Max. ± 0.2
mA
Residual current @ IP = 0,
after an excursion at 1x IPN
Max.± 0.15
mA
Thermal drift of IO
± 0.005 mA/K
Response time @ 90% of IP
<1 µs
di/dt accurately followed
> 200 A/µs
Frequency bandwidth (- 1dB)1)
DC .. 150 kHz
General data
TA Ambient operating temperature
TS Ambient storage temperature
RS Secondary coil resistance
m Mass
- 10 .. + 80 °C
- 15 .. + 85 °C
80
25 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
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)
Power supplies for welding
applications
010118/2
LEM Components
www.lem.com

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