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Current Transducer LB 100-S/SP3
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
=
100 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 @ 100 A max @ 200 A max 100 0 .. 200 RM min RM max 0 0 100 1 : 1000 15 20 + IS 5 1) 85 30 A A W W mA V mA kV
Features
* Closed loop (compensated) current
transducer using the Hall effect
* Insulated plastic case recognized
according to UL 94-V0.
Special features
* VC = 15 ( 5 %) V * Better zero crossing performance * TA = + 10C .. + 50C * Potted.
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
Advantages
* Excellent accuracy * Very good linearity * Low temperature drift * Optimized response time * Wide frequency bandwidth * No insertion losses * High immunity to external
interference
Accuracy - Dynamic performance data
e
X
L
Accuracy @ IPN, TA = 25C Linearity Offset current @ IP = 0, TA = 25C Thermal drift of IO + 10C .. + 50C Response time 2) @ 90 % of IPN di/dt accurately followed Frequency bandwidth (- 1 dB) Zero crossing distortion
0.5 < 0.1 Max 0.4 0.35 0.4 <1 > 50 DC .. 150 negligeable Typ
% % mA mA s A/s kHz
IO IOT tr di/dt f
* Current overload capability.
Applications
* AC variable speed drives and servo
motor drives
General data
TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ TA = 50C Mass Standards 3) + 10 .. + 50 - 25 .. + 85 25 180 EN 50178 C C W g
* Static converters for DC motor drives * Battery supplied applications * Uninterruptible Power Supplies (UPS) * Switched Mode Power Supplies
(SMPS)
* Power supplies for welding
applications
* HVDC transmisions.
Notes :
1) 2) 3)
Between primary and secondary. With a di/dt of 100 A/s A list of corresponding tests is available. 990723/1
Dimensions LB 100-S/SP3 (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
0.3 mm 4 holes AE 4.3 mm AE 15 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
70C.
* 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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