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| Current Transducer LA 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). IPN = 100 A Electrical data IPN IP RM Primary nominal r.m.s. current Primary current, measuring range Measuring resistance @ with 12 V with 15 V ISN KN VC IC Vd @ 100 A max @ 120 A max @ 100 A max @ 150 A max 100 0 .. 150 TA = 70C TA = 85C RM min RM max RM min RM max 0 0 0 0 50 22 110 33 0 0 20 20 42 14 102 25 A A Features *Closed loop (compensated) current transducer using the Hall effect *Printed circuit board mounting *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 50 mA 1 : 2000 12 .. 15 V 10 (@ 15 V) + IS mA 2.5 kV 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 X Accuracy @ IPN , TA = 25C L @ 15 V ( 5 %) @ 12 .. 15 V ( 5 %) Linearity 0.45 0.70 < 0.15 Max 0.10 0.15 0.25 0.50 % % % mA mA mA mA ns s A/s kHz *Current overload capability. IO I OM IOT tra tr di/dt f Typ Offset current @ IP = 0, TA = 25C Residual current 1) @ IP = 0, after an overload of 3 x IPN Thermal drift of IO - 25C .. + 85C 0.05 - 40C .. - 25C 0.10 Reaction time @ 10 % of IP max Response time 2) @ 90 % of IP max di/dt accurately followed Frequency bandwidth (- 1 dB) Applications *AC variable speed drives and servo motor drives < 500 <1 > 200 DC .. 200 *Static converters for DC motor drives *Battery supplied applications *Uninterruptible Power Supplies (UPS) *Switched Mode Power Supplies (SMPS) General data TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ Mass Standards - 40 .. + 85 - 50 .. + 95 120 128 18 EN 50178 C C g *Power supplies for welding applications. TA = 70C TA = 85C 3) Notes : 1) 2) 3) The result of the coercive field of the magnetic circuit With a di/dt of 100 A/s A list of corresponding tests is available 980717/6 LEM Components w w w .lem.com Dimensions LA 100-P Bottom view (in mm. 1 mm = 0.0394 inch) Left view Secondary terminals swiss made Terminal + : supply voltage + 12 .. 15 V Terminal - : supply voltage - 12 .. 15 V Terminal M : measure Connection Standard 00 or N SP .. Year Week Front view Mechanical characteristics *General tolerance *Primary through-hole *Fastening & connection of secondary Recommended PCB hole 0.2 mm 12.7 x 7 mm 3 pins 0.63 x 0.56 mm 0.9 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. *In order to achieve the best magnetic coupling, the primary windings have to be wound over the top edge of the device. *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. |
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