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LA55-P Datasheet(PDF) 1 Page - LEM |
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LA55-P Datasheet(HTML) 1 Page - LEM |
1 / 3 page LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice. www.lem.com Page 1/3 090519/14 I PN = 50 A Features Closed loop (compensated) ● current transducer using the Hall effect Printed circuit board mounting ● Isolated 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 Current overload capability. ● 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. Application domain Industrial. ● Current Transducer LA 55-P For the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). Electrical data I PN Primary nominal current rms 50 A I PM Primary current, measuring range 0 .. ± 70 A R M Measuring resistance T A = 70°C T A = 85°C R M min RM max RM min RM max with ± 12 V @ ± 50 A max 10 100 60 95 Ω @ ± 70 A max 10 50 60 1) 60 1) Ω with ± 15 V @ ± 50 A max 50 160 135 155 Ω @ ± 70 A max 50 90 135 2) 135 2) Ω I SN Secondary nominal current rms 50 mA K N Conversion ratio 1 : 1000 V C Supply voltage (± 5 %) ± 12 .. 15 V I C Current consumption 10 (@ ± 15 V) + I S mA X Accuracy @ I PN , TA = 25°C @ ± 15 V (± 5 %) ± 0.65 % Accuracy - Dynamic performance data @ ± 12 .. 15 V (± 5 %) ± 0.90 % ε L Linearity error < 0.15 % Typ Max I O Offset current @ I P = 0, TA = 25°C ± 0.2 mA I OM Magnetic offset current 3) @ I P = 0 and specified RM, after an overload of 3 x I PN ± 0.3 mA I OT Temperature variation of I O - 25°C .. + 85°C ± 0.1 ± 0.6 mA - 40°C .. - 25°C ± 0.2 ± 1.0 mA t ra Reaction time to 10 % of I PN step < 500 ns t r Response time to 90 % of I PN step < 1 µs di/dt di/dt accurately followed > 200 A/µs BW Frequency bandwidth (- 1 dB) DC .. 200 kHz T A Ambient operating temperature - 40 .. + 85 °C General data T S Ambient storage temperature - 40 .. + 90 °C R S Secondary coil resistance @ T A = 70°C 80 Ω @ T A = 85°C 85 Ω m Mass 18 g Standards EN 50178: 1997 Notes: 1) Measuring range limited to ± 60 A max 2) Measuring range limited to ± 55 A max 3) Result of the coercive field of the magnetic circuit. 16019 |
Número de pieza similar - LA55-P_09 |
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Descripción similar - LA55-P_09 |
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