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LB200-S Datasheet(PDF) 1 Page - LEM |
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LB200-S Datasheet(HTML) 1 Page - LEM |
1 / 2 page Current Transducer LB 200-S/SP4 For the electronic measurement of currents : DC, AC, pulsed..., with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit). Electrical data I PN Primary nominal r.m.s. current 200 A I P Primary current, measuring range 0 .. ± 300 A R M Measuring resistance R M min R M max with ± 15 V @ ± 200 A max 5 33 Ω @ ± 300 A max 5 15 Ω I SN Secondary nominal r.m.s. current 200 mA K N Conversion ratio 1 : 1000 V C Supply voltage (± 5 %) ± 15 V I C Current consumption 20 + I S mA V d R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 6 1) kV 1 2) kV Accuracy - Dynamic performance data X G Overall accuracy @ I PN, TA = 25°C ± 0.5 % ε L Linearity < 0.1 % Typ Max I O Offset current @ I P = 0, TA = 25°C ± 0.50 mA I OT Thermal drift of I O + 20°C .. + 50°C ± 0.08 mA t r Response time 3) @ 90 % of I PN < 1 µs di/dt di/dt accurately followed > 50 A/µs f Frequency bandwidth (- 1 dB) DC .. 150 kHz Output noise < 0.002 mA Magnetization after excursion @ ± I PN < 0.01 mA Crossing distortion negligeable Matching specification + 20°C .. + 50°C ≤ 0.01 mA General data T A Ambient operating temperature + 20 .. + 50 °C T S Ambient storage temperature - 25 .. + 85 °C R S Secondary coil resistance @ T A = 50°C 30 Ω m Mass 200 g Standards 4) EN 50178 Notes : 1) Between primary and secondary + shield. 2) Between secondary and shield. 3) With a di/dt of 100 A/µs 4) A list of corresponding tests is available. Features • Closed loop (compensated) current transducer using the Hall effect • Insulated plastic case recognized according to UL 94-V0. Special features • V C = ± 15 V (± 5 %) • K N = 1 : 1000 • Shield • Negligeable zero crossing distortion • Low noise electronics • T A = + 20°C .. + 50°C • Low I OT • Transducers matched based on thermal drift to within T A ≤ 0.01 mA. Advantages • Better frequency response • 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. I PN = 200 A 990716/7 LEM Components www.lem.com |
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