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Current Transducer LB 1000-SI/SP2
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 IP RM Primary nominal r.m.s. current Primary current, measuring range Measuring resistance with 15 V ISN KN VC IC Vd @ 1000 A max @ 1500 A max 1000 0 .. 1500 RM min RM max 0 0 25 5 A A mA V mA kV
Features
* Closed loop (compensated) current
transducer using the Hall effect
* Insulated plastic case recognized
according to UL 94-V0.
Secondary nominal r.m.s. current Conversion ratio Supply voltage ( 5 %) Current consumption R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
200 1 : 5000 15 21 + IS 6
Special features
* Better zero crossing performance * TA = + 10C .. + 50C * Shield between primary and
secondary.
Accuracy - Dynamic performance data
XG
L
Overall accuracy @ IPN , TA = 25C Linearity Offset current @ IP = 0, TA = 25C Thermal drift of IO + 10C .. + 50C Response time 1) @ 90 % of IP max di/dt accurately followed Frequency bandwidth (- 1 dB)
0.3 < 0.1 Typ Max 0.4 0.2
% % mA mA s A/s kHz
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.
IO IOT tr di/dt f
0.1
<1 > 50 DC .. 100
General data
TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ TA = 70C Mass Standards 2) + 10 .. + 50 - 25 .. + 85 40 700 EN 50178 C C g
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) 2)
With a di/dt of 100 A/s A list of corresponding tests is available 000901/0
LEM Components
w w w.lem.com
Dimensions LB 1000-SI/SP2 (in mm. 1 mm = 0.0394 inch)
Front view Left view
Secondary terminals
Terminal + : supply voltage + 15 V Terminal M : measure Terminal - : supply voltage - 15 V
Connection
Top view Mechanical characteristics
* * * *
General tolerance Fastening Primary through-hole Connection of secondary 0.5 mm 4 slots 7 mm 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
100C.
* Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.

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