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LA55-TP 데이터시트(PDF) 1 Page - LEM |
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LA55-TP 데이터시트(HTML) 1 Page - LEM |
1 / 3 page LEM www .lem.com LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 060126/7 Page 1/3 Current Transducer LA 55-TP 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 50 A I P Primary current, measuring range 0 .. ± 70 A R M Measuring resistance @ T A = 70°C T A = 85°C R M min RMmax RM min RMmax 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 r.m.s. current 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 Accuracy - Dynamic performance data X Accuracy @ I PN , TA = 25°C @ ± 15 V (± 5 %) ± 0.65 % @ ± 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 Residual current 3) @ I P = 0, after an overload of 3 x IPN ± 0.3 mA I OT Thermal drift of I O 0°C .. + 70°C ± 0.1 ± 0.5 mA - 25°C .. + 85°C ± 0.1 ± 0.6 mA t ra Reaction time @ 10 % of I P max < 500 ns t r Response time 4) @ 90 % of I P max < 2.5 µs di/dt di/dt accurately followed > 200 A/µ s f Frequency bandwidth @ 30A (- 3 dB) DC .. 100 kHz General data T A Ambient operating temperature - 25 .. + 85 °C 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 24 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 4) With a di/dt of 100 A/µs. Features • Closed loop (compensated) current transducer using the Hall effect • Printed circuit board mounting • Insulated 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 PN = 50 A 16016 |
유사한 설명 - LA55-TP_06 |
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