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| Current Transducer LA 100-S/SP1 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 50 1 : 2000 15 22 + IS 3 180 50 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 min Special features * IP = 0 .. 200 A * K N = 1 : 2000 Accuracy - Dynamic performance data XG Advantages 0.5 < 0.1 Typ Max 0.1 0.4 % % mA mA s A/s kHz L Overall accuracy @ IPN, TA = 25C Linearity Offset current @ IP = 0, TA = 25C Thermal drift of IO - 10 C .. + 70C Response time 1) @ 90 % of IPN di/dt accurately followed Frequency bandwidth (- 1 dB) IO IOT tr di/dt f 0.2 <1 > 50 DC .. 150 * * * * * * * 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. General data TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ TA = 70C Mass Standards 2) - 10 .. + 70 - 25 .. + 85 85 65 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 50 A/s A list of corresponding tests is available. 991015/5 LEM Components w w w.lem.com Dimensions LA 100-S/SP1 (in mm. 1 mm = 0.0394 inch) Front view Left view Secondary terminals Terminal Terminal Terminal Terminal + M 0 : : : : supply voltage + 15 V supply voltage - 15 V measure NC Connection Top view Mechanical characteristics * * * * General tolerance Fastening Primary through-hole Connection of secondary 0.3 mm 2 holes 3.2 mm 16 x 10 mm Molex 5045-04/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. * In order to achieve the best magnetic coupling, the primary windings have to be wound over the top edge of the device. * To measure nominal currents of less than 100 A, the optimum accuracy is obtained by having several primary turns (nominal current x number of turns < 100 At). LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. |
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