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| Current Transducer LA 150-P For the electronic measurement of currents: DC, AC, pulsed, mixed, with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). IPN = 150 A Preliminary Electrical data IPN IP RM 150 A 0 .. 200 A TA = 70C TA = 85C RM min RM max RM min RM max with 15V @ 200 A max 0 30 0 15 Secondary nominal current 75 mA Conversion ratio 1 : 2000 Supply voltage ( 5 %) 15 V Current consumption app 16 + ISN mA R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5 kV Primary nominal current Primary current, measuring range Measuring resistance Features * Closed loop (compensation) current transducer using the Hall effect ISN KN VC IC Vd * Printed circuit board mounting Advantages Accuracy-Dynamic performance data X L IO Iom IOT tr di/dt f Accuracy @ IPN, TA = 25C @ 15V ( 5 %) <1 Linearity (0 .. IPN) 0.25 Electrical offset current @IP = 0, @TA = 25C Max. 0.2 Residual current @ IP = 0, after an excursion at 1x IPN Max. 0.15 Thermal drift of IO 0.005 Response time @ 90% of IP <1 di/dt accurately followed > 200 Frequency bandwidth (- 1dB)1) DC .. 150 % of IPN % of IPN mA mA mA/K s A/s kHz * * * * * * * Excellent accuracy Very good linearity Low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference * Current overload capacity Applications * AC variable speed drives and servo motor drives General data TA TS RS m Notes : 1) * Static converters for DC motor drives * Battery supplied applications * Uninterruptible Power Supplies - 10 .. + 80 C - 15 .. + 85 C 80 25 g (UPS) Ambient operating temperature Ambient storage temperature Secondary coil resistance Mass EN 50178 approval pending * Switched Mode Power Supplies (SMPS) * Power supplies for welding applications Derating is needed to avoid excessive core heating at high frequency. 010118/2 LEM Components www.lem.com LA 150-P Bottom view Left view 9 29.5 36 13 8.5 29.5 Terminal Pin Identification 8.5 +Vcc +Vcc 22.9 28 0.5 M 5.1 -Vcc -Vcc M RL Output Front view General tolerance Primary through-hole Fastening & connection of secongary Recommended PCB hole +/- 0.2 mm 13 x 8.5 mm 3 pins 0.7 x 0.7 mm 1.0 mm LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 7 16 |
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