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| Current Transducer LA 205-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). IPN = 200 A Electrical data IPN IP IP max RM Primary nominal r.m.s. current Primary current, measuring range Measuring overload 1) Measuring resistance @ with 12 V with 15 V ISN KN VC IC Vb @ 200 A max @ 300 A max @ 200 A max @ 300 A max 200 0 .. 300 600 TA = 70C TA = 85C RM min RM max RM min RM max 0 0 5 5 68 33 95 50 0 0 5 5 66 30 93 49 A A A Features *Closed loop (compensated) current transducer using the Hall effect *Insulated plastic case recognized according to UL 94-V0 *Patent pending. Advantages *Excellent accuracy *Very good linearity *Low temperature drift *Optimized response time *Wide frequency bandwidth *No insertion losses *High immunity to external interference Secondary nominal r.m.s. current Conversion ratio Supply voltage ( 5 %) Current consumption R.m.s rated voltage 2), safe separation basic isolation 100 mA 1 : 2000 12 .. 15 V 20 (@ 15 V) + IS mA 1625 V 3250 V Accuracy - Dynamic performance data XG L Overall accuracy @ IPN , TA = 25C Linearity Offset current @ IP = 0, TA = 25C Residual current 3) @ IP = 0, after an overload of 3 x IPN Thermal drift of IO - 10C .. + 85C Reaction time @ 10 % of IP max Response time 4) @ 90 % of IP max di/dt accurately followed Frequency bandwidth (- 3 dB) 0.8 < 0.1 Max 0.15 0.50 0.15 0.30 < 500 <1 > 100 DC .. 100 Typ % % mA mA mA ns s A/s kHz *Current overload capability. Applications *AC variable speed drives and servo motor drives IO IOM IOT tra tr di/dt f *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 @ - 10 .. + 85 - 40 .. + 90 35 37 110 EN 50178 C C g *Power supplies for welding applications. TA = 70C TA = 85C Mass Standards 5) Notes : 1) 3 mn/hour @ VC = 15 V, R M = 5 2) Pollution class nr 2. With a non insulated primary bar which fills the through-hole 3) The result of the coercive field of the magnetic circuit 4) With a di/dt of 100 A/s 5) A list of corresponding tests is available 980716/5 LEM Components w w w .lem.com Dimensions LA 205-S Front view (in mm. 1 mm = 0.0394 inch) Left view Secondary terminals Pin Pin Pin Pin 1 2 3 4 : : : : supply voltage + 12 .. 15 V measure supply voltage - 12 .. 15 V NC Connection Top view Mechanical characteristics *General tolerance *Fastening *Primary through-hole *Connection of secondary 0.5 mm 2 holes 5.5 mm 23 x 18 mm Molex 5046-04/AG 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. *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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