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LA25-NP-SP8 датащи(PDF) 1 Page - LEM |
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LA25-NP-SP8 датащи(HTML) 1 Page - LEM |
1 / 3 page Page 1/3 9November2011/version 3 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice www.lem.com Current Transducer LA 25-NP/SP8 For the electronic measurement of currents: DC, AC, pulsed..., with galvanic isolation between the primary circuit and the secondary circuit. Electrical data I PN Primary nominal current rms 2 A I PM Primary current, measuring range 0 .. ± 3 A R M Measuring resistance R M min R M max with ± 15 V @ ± 2 A max 100 320 Ω @ ± 3 A max 100 190 Ω I SN Secondary nominal current rms 24 mA K N Conversion ratio 12 : 1000 V C Supply voltage (± 5 %) ± 15 V I C Current consumption 10 + I S mA Accuracy - Dynamic performance data X Accuracy @ I PN, TA = 25°C ± 0.5 % ε L Linearity error < 0.2 % Typ Max I O Offset current 1) @ I P = 0, TA = 25°C ± 0.05 ± 0.15 mA I OM Magnetic offset current 2) @ I P = 0 and specified RM, after an overload of 3 x I PN ± 0.05 ± 0.15 mA I OT Temperature variation of I O 0°C .. + 25°C ± 0.06 ± 0.25 mA + 25°C .. + 70°C ± 0.10 ± 0.35 mA t r Response time 3) to 90 % of I PN step < 1 µs di/dt di/dt accurately followed > 50 A/µs BW Frequency bandwidth (- 1 dB) DC .. 150 kHz General data T A Ambient operating temperature 0 .. + 70 °C T S Ambient storage temperature - 25 .. + 85 °C R P Primary coil resistance @ T A = 25°C < 12.4 mΩ R S Secondary coil resistance @ T A = 70°C 110 Ω L P Insertion inductance 8 µH R IS Isolation resistance @ 500 V, T A = 25°C > 1500 MΩ m Mass 22 g Standards EN 50178: 1997 Notes: 1) Measurement carried out after 15 mn functioning 2) The result of the coercive field of the magnetic circuit 3) With a di/dt of 100 A/µs. I PN = 2 A Features ● Closed loop (compensated) current transducer using the Hall effect ● Isolated plastic case recognized according to UL 94-V0. Special features ● I PN = 2 A ● I PM = 0 .. ± 3 A ● K N = 12 : 1000. 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. 16094 |
Аналогичный номер детали - LA25-NP-SP8 |
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Аналогичное описание - LA25-NP-SP8 |
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