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LF205-S Arkusz danych(PDF) 1 Page - LEM |
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1 / 3 page Page 1/3 8June2013/version 17 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com Nº 97.14.44.000.0 Current Transducer LF 205-S For the electronic measurement of currents: DC, AC, pulsed..., with galvanic separation between the primary circuit and the secondary circuit. Electrical data I PN Primary nominal rms current 200 A I PM Primary current, measuring range 0 .. ± 420 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 @ ± 200 A max 0 71 0 69 Ω @ ± 420 A max 0 14 0 12 Ω with ± 15 V @ ± 200 A max 0 100 23 98 Ω @ ± 420 A max 0 28 23 26 Ω I SN Secondary nominal rms current 100 mA K N Conversion ratio 1 : 2000 U C Supply voltage (+ 5 %) ± 12 .. 15 V I C Current consumption @ ± 15 V 17 + I S mA Accuracy - Dynamic performance data X G Overall accuracy @ I PN, TA = 25 °C ± 0.5 % ε L Linearity error < 0.1 % Typ Max I O Offset current @ I P = 0, TA = 25 °C ± 0.2 mA I OM Magnetic offset current 1) @ I P = 0 and specified RM, after an overload of 3 x I PN ± 0.1 mA I OT Temperature variation of I O - 40 °C .. + 85 °C ± 0.12 ± 0.4 mA t ra Reaction time to 10 % of I PN step < 500 ns t r Response time 2) to 90 % of I PN step < 1 µs di/dt di/dt accurately followed > 100 A/µs BW Frequency bandwidth (- 3 dB) DC .. 100 kHz General data T A Ambient operating temperature - 40 .. + 85 °C T S Ambient storage temperature - 40 .. + 90 °C R S Secondary coil resistance @ T A = 70 °C 33 Ω @ T A = 85 °C 35 Ω m Mass 78 g Standard EN 50178: 1997 Notes: 1) The result of the coercive force (Hc) of the magnetic circuit 2) With a di/dt of 100 A/µs. I PN = 200 A Features ● Closed loop (compensated) current transducer using the Hall effect ● Insulating 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. I S I P R M U C d Cp d CI U C |
Podobny numer części - LF205-S_13 |
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Podobny opis - LF205-S_13 |
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