LAH100-P Datasheet, PDF (1/2 Pages) LEM – Current Transducer LAH 100-P

Current Transducer LAH 100-P
For the electronic measurement of currents : DC, AC, pulsed ...,
with a galvanic isolation between the primary circuit
(high power) and the secondary circuit (electronic circuit).
I_PN = 100 A
Electrical data
I_PN
Primary nominal r.m.s. current
I_P
Primary current, measuring range ¹⁾
R_M Measuring resistance @
100
A
0 .. 160
A
T_A = 70°C T_A = 85°C
R_{M min} R_{M max} R_{M min} R_{M max}
with ± 12 V
@ I_PN [± A _DC ]
0 63 0 57 Ω
@ I_PN [A _RMS ] ²⁾
0 11 0 5 Ω
with ± 15 V
@ I_PN [± A _DC ]
20 120 45 114 Ω
@ I_PN [A _RMS ] ²⁾
20 51 45 45 Ω
@ I_P < I_PN ³⁾
I_SN Secondary nominal r.m.s. current
50
mA
K_N Conversion ratio
1 : 2000
V_C Supply voltage (± 5 %)
± 12 .. 15
V
I_C
Current consumption
10 (@ ± 15 V)+I m A
S
V_d
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn 5
kV
V_e
R.m.s. voltage for partial discharge extinction @ 10 pC > 2
kV
V_w Impulse withstand voltage 1.2/50 µs
> 12
kV
Accuracy - Dynamic performance data
X
ε_L
Accuracy⁴⁾ @ I_PN, T_A = 25°C
Linearity
± 0.25
%
< 0.15
%
Typ Max
I_O
Offset current @ T_A = 25°C
± 0.15 m A
I_OM Residual current @ I_P = 0, after an overload of 5 x I_PN ± 0.10 ± 0.15 m A
I_OT
Thermal drift of I_O
0°C .. + 70°C ± 0.10 ± 0.40 m A
- 25°C .. + 85°C ± 0.10 ± 0.50 m A
t_{r a}
t_r
di/dt
f
Reaction time @ 10 % of I_PN
Response time ⁵⁾ @ 90 % of I_PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
General data
< 200
< 500
> 200
DC .. 200
ns
ns
A/µ s
kHz
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R_S Secondary coil resistance
Insulating material group
m Mass
Standards ⁶⁾
- 25 .. + 85
°C
- 40 .. + 90
°C
@ T_A = 70°C 115
Ω
@ T_A = 85°C 121
Ω
I
24
g
EN 50178
Notes : ¹⁾ For 10 s, with R _M ≤ 25 Ω (V_C = ± 15 V) - ²⁾ 50 Hz Sinusoidal -
3) _{The measuring resistance RM min may be lower (see "LAH Technical}
Information" leaflet) - ⁴⁾ Without I_O & I_OM - ⁵⁾ With a di/dt of 100 A/µs
6) _{A list of corresponding tests is available.}
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Printed circuit board mounting
• Insulated 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.
010820/5
LEM Components
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