LT4000-S Datasheet, PDF (1/2 Pages) LEM – Current Transducer LT 4000-S

Current Transducer LT 4000-S
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 = 4000 A
Electrical data
I
Primary nominal r.m.s. current
PN
I_P
Primary current, measuring range
R
Measuring resistance
M
with ± 24 V
@ ± 4000 A
max
@ ± 6000 A _max
I_SN
Secondary nominal r.m.s. current
K _N Conversion ratio
V_C Supply voltage (± 5 %)
I_C
Current consumption
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Accuracy - Dynamic performance data
εX G
L
Overall accuracy @ I_PN , T_A = 25°C
Linearity
I
O
I_OT
t_r
di/dt
f
Offset current @ I = 0, T = 25°C
P
A
Thermal drift of I_O
Response time ¹⁾ @ 90 % of I_{P max}
di/dt accurately followed
Frequency bandwidth (- 1 dB)
- 25°C .. + 70°C
General data
T_A
Ambient operating temperature
T
Ambient storage temperature
S
R _S Secondary coil resistance @ T_A = 70°C
m
Mass
Standards ²⁾
4000
A
0 .. ± 6000
A
R
M min
R
M max
0
10
Ω
0
2
Ω
800
mA
1 : 5000
± 24
V
35 (@ ± 24 V) + I_S mA
6
kV
± 0.5
%
< 0.1
%
Typ Max
± 0.8 mA
± 0.6 ± 0.8 mA
<1
> 50
DC .. 100
µs
A/µs
kHz
- 25 .. + 70
°C
- 40 .. + 85
°C
15
Ω
6
kg
EN 50178
Features
•Closed loop (compensated) current
transducer using the Hall effect
•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.
Notes : ¹⁾ With a di/dt of 100 A/µs
2) _{A list of corresponding tests is available}
LEM Components
980728/8
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