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Current Transducer LT 1000-SI
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).
IPN = 1000 A
Electrical data
IPN Primary nominal r.m.s. current
IP Primary current, measuring range
RM Measuring resistance
with ± 15 V
@ ± 1000 Amax
@ ± 1500 Amax
ISN Secondary nominal r.m.s. current
KN Conversion ratio
VC Supply voltage (± 5 %)
IC Current consumption
Vd R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
1000
0 .. ± 1500
RM min RM max
0 25
05
200
1 : 5000
± 15
25 + IS
6
A
A
Ω
Ω
mA
V
mA
kV
Accuracy - Dynamic performance data
εX G Overall accuracy @ IPN , TA = 25°C
L Linearity error
IO
IOT
tr
di/dt
f
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
Response time 1) @ 90 % of IPN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
0°C .. + 70°C
± 0.3www.DataSheet.co.kr
< 0.1
%
%
Typ Max
± 0.4
± 0.2 ± 0.3
mA
mA
<1
> 50
DC .. 100
µs
A/µ s
kHz
General data
TA Ambient operating temperature
TS Ambient storage temperature
R S Secondary coil resistance @ TA = 70°C
m Mass
Standards
0 .. + 70
°C
- 25 .. + 85
°C
40 Ω
700 g
EN 50178 (97.10.01)
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.
Note : 1) With a di/dt of 100 A/µs.
LEM Components
040317/7
w w w.lem.com
Datasheet pdf - http://www.DataSheet4U.net/
Dimensions LT 1000-SI (in mm. 1 mm = 0.0394 inch)
Front view
Left view
Connection
www.DataSheet.co.kr
Top view
Mechanical characteristics
• General tolerance
• Transducer fastening
Recommended fastening torque
• Primary through-hole
• Connection of secondary
± 0.5 mm
4 slots ∅ 7 mm
4 M6 steel screws
4.7 Nm or 3.47 Lb- Ft
∅ 40 mm
Faston 6.3 x 0.8 mm
Remarks
• IS is positive when IP flows in the direction of the arrow.
• Temperature of the primary conductor should not exceed
100°C.
• Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
• This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
Datasheet pdf - http://www.DataSheet4U.net/
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