LA150-TP Datasheet, PDF (1/3 Pages) LEM – Current Transducer

Current Transducer LA 150-TP
For the electronic measurement of currents: DC, AC, pulsed...,
with galvanic isolation between the primary circuit and the secondary
circuit.
I_PN = 150 A
Electrical data
I_PN
Primary nominal current rms
I_PM
Primary current, measuring range
R_M
Measuring resistance @ 85°C
with ± 12 V
@ ± 150 A _max
@ ± 212 A _max
with ± 15 V
@ ± 150 A _max

@ ± 212 A _max
I_SN
Secondary nominal current rms
K_N
Conversion ratio
V_C
Supply voltage (± 5 %)
I_C
Current consumption
Accuracy - Dynamic performance data
150
A
0 .. ± 212
A
R R _{M min}
M max
0
40
Ω
0
3
Ω
0
78
Ω
0
30
Ω
75
mA
1 : 2000
± 12 .. 15
V
10 (@ ± 15 V) + I_s mA
X
ε
L
I_OE
I_OM
I_OT
t_ra
t_r
di/dt
BW
Accuracy @ I_PN, T_A = 25°C
Linearity error
< 0.5
< 0.1

Typ Max
Electrical offset current @ I_P = 0, T_A = 25°C
± 0.10
Magnetic offset current @ I_P = 0 and specified R_M,
after an overload of 3 x I_PN
± 0.25
Temperature variation of I_O
- 40°C .. + 85°C ± 0.15 ± 0.30
Reaction time to 10 % of I_PN step
< 300
Response time ¹⁾ to 90 % of I_PN step
< 500
di/dt accurately followed
> 100
Frequency bandwidth (- 1 dB)
DC .. 150
%
%
mA
mA
mA
ns
ns
A/µs
kHz
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R_S
Secondary coil resistance @ T_A = 25°C
m
Mass
Standard
- 40 .. + 85
°C
- 40 .. + 90
°C
64 ± 2
Ω
< 35
g
EN 50178: 1997
Features
●● Closed loop (compensated)
current transducer using the Hall
effect
●● Isolated plastic case recognized
according to UL 94-V0.
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 capability.
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.
Application domain
●● Industrial.
Note: ¹⁾ With a di/dt of 100 A/µs.
14December2012/version 3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
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