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LF2005-S Scheda tecnica(PDF) 1 Page - LEM |
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LF2005-S Scheda tecnica(HTML) 1 Page - LEM |
1 / 3 page 05July2011/version 11 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 I PN = 2000 A Features Closed loop (compensated) ● current transducer using the Hall effect 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 LF 2005-S 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 2000 A I PM Primary current, measuring range @ ± 24 V 0 .. ± 3000 A R M Measuring resistance @ T A = 70 °C T A = 85 °C R M minRM max R M minRM max with ± 15 V @ ± 2000 A max 0 8 0 7 Ω @ ± 2200 A max 0 5 0 4 Ω with ± 24 V @ ± 2000 A max 5 29 13 28 Ω @ ± 3000 A max 5 11 @ ± 2800 A 13 13 Ω I SN Secondary nominal current rms 400 mA K N Conversion ratio 1 : 5000 V C Supply voltage (± 5 %) ± 15 .. 24 V I C Current consumption (± 1) 33 (@ ± 24 V) + I S mA Accuracy - Dynamic performance data X Accuracy @ I PN, TA = 25°C ± 0.3 % ε L Linearity error < 0.1 % Typ Max I O Offset current @ I P = 0, TA = 25°C ± 0.5 mA I OM Magnetic offset current @ I P = 0 and specified RM after an overload of 3 x I PN ± 0.2 mA I OT Temperature variation of I O - 25°C .. + 85°C ± 0.2 ± 0.5 mA - 40°C .. - 25°C ± 1.5 mA t r Response time 1) to 90 % of I PN step < 1 µs di/dt di/dt accurately followed > 50 A/µs BW Frequency bandwidth (-1 dB) DC .. 100 kHz General data T A Ambient operating temperature - 40 .. + 85 °C T S Ambient storage temperature - 50 .. + 90 °C R S Secondary coil resistance @ T A = 70°C 25 Ω @ T A = 85°C 26 Ω m Mass 1.5 kg Standards EN 50178: 1997 Note: 1) With a di/dt of 100 A/µs. 16103 |
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