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LA-205-S Datasheet(PDF) 1 Page - LEM |
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LA-205-S 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. 110126/9 www.lem.com Page 1/3 Current Transducer LA 205-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 200 A I PM Primary current, measuring range 0 .. ± 300 A î P max Measuring overload 1) 600 A T A = 70°C T A = 85°C R M Measuring resistance R M min RM max RM min RM max with ± 12 V @ ± 200 A max 0 68 0 66 Ω @ ± 300 A max 0 33 0 30 Ω with ± 15 V @ ± 200 A max 5 95 5 93 Ω @ ± 300 A max 5 50 5 49 Ω I SN Secondary nominal current rms 100 mA K N Conversion ratio 1 : 2000 V C Supply voltage (± 5 %) ± 12 .. 15 V I C Current consumption 20 (@ ± 15 V) + I S mA X G Overall accuracy @ I PN , TA = 25°C ± 0.8 % Accuracy - Dynamic performance data ε L Linearity error < 0.1 % Typ Max I O Offset current @ I P = 0, TA = 25°C ± 0.15 mA I OM Magnetic offset current 2) @ I P = 0 and specified RM, mA after an overload of 3 x I PN ± 0.50 mA I OT Temperature variation of I O - 10°C .. + 85°C ± 0.15 ± 0.30 mA t ra Reaction time @ 10 % of I PN < 500 ns t r Response time 3) @ 90 % of I PN step < 1 µs di/dt di/dt accurately followed > 100 A/µs BW Frequency bandwidth (- 3 dB) DC .. 100 kHz T A Ambient operating temperature - 10 .. + 85 °C General data T S Ambient storage temperature - 40 .. + 90 °C R S Secondary coil resistance @ T A = 70°C 35 Ω @ T A = 85°C 37 Ω m Mass 110 g Standards EN 50178: 1997 Notes: 1) 3 mn/hour @ V C = ± 15 V, RM = 5 Ω 2) The result of the coercive force (Hc) of the magnetic circuit 3) With a di/dt of 100 A/µs. I PN = 200 A Features ● Closed loop (compensated) current transducer using the Hall effect ● Isolated plastic case recognized according to UL 94-V0 ● Patent pending. 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. 16137 |
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