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Current Transducer LT 1005-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 = 1000 A Electrical data IPN IP RM Primary nominal r.m.s. current Primary current, measuring range Measuring resistance @ with 15 V with 24 V ISN KN VC IC Vd Vb @ 1000 A max @ 1200 A max @ 1000 A max @ 2000 A max 1000 0 .. 2000 TA = 70C TA = 85C RM min RM max RM min RM max 0 0 0 0 22.5 11 65 10 0 0 0 0 18.5 8 62 7 A A 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 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 R.m.s. rated voltage 1), safe separation basic isolation 200 mA 1 : 5000 15 .. 24 V 30 (@ 24 V) + IS mA 6 kV 1750 V 3500 V Accuracy - Dynamic performance data XG *Current overload capability. 0.4 < 0.1 Typ Max 0.4 0.5 % % mA mA s A/s kHz L Overall accuracy @ IPN , TA = 25C Linearity Offset current @ IP = 0, TA = 25C Thermal drift of IO - 10C .. + 85C Response time 2) @ 90 % of IP max di/dt accurately followed Frequency bandwidth (- 1 dB) Applications *AC variable speed drives and servo motor drives IO IOT tr di/dt f 0.3 <1 > 50 DC .. 150 *Static converters for DC motor drives *Battery supplied applications *Uninterruptible Power Supplies (UPS) General data TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ Mass Standards - 10 .. + 85 - 25 .. + 100 43 46 320 EN 50178 C C g *Switched Mode Power Supplies (SMPS) *Power supplies for welding applications. TA = 70C TA = 85C 3) Notes : 1) 2) 3) Pollution class 2. With a non insulated primary bar which fills the through-hole With a di/dt of 100 A/s A list of corresponding tests is available 980716/4 LEM Components w w w .lem.com Dimensions LT 1005-S Front view (in mm. 1 mm = 0.0394 inch) Left view Secondary terminals Terminal + : supply voltage + 15 .. 24 V Terminal M : measure Terminal - : supply voltage - 15 .. 24 V Connection Top view Mechanical characteristics *General tolerance *Fastening *Primary through-hole *Connection of secondary 0.5 mm 4 holes 6.5 mm 40.5 x 40.5 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. *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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