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LA25-NPSP7 데이터시트(PDF) 1 Page - LEM |
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LA25-NPSP7 데이터시트(HTML) 1 Page - LEM |
1 / 2 page Current Transducer LA 25-NP/SP7 For the electronic measurement of currents : DC, AC, pulsed, mixed, 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 2.5 A I P Primary current, measuring range 0 .. ± 3.6 A R M Measuring resistance R M min R M max with ± 15 V @ ± 2.5 A max 100 320 Ω @ ± 3.6 A max 100 190 Ω I SN Secondary nominal r.m.s. current 25 mA K N Conversion ratio 10 : 1000 V C Supply voltage (± 5 %) ± 15 V I C Current consumption 10 + I S mA V d R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 2.5 kV V b R.m.s. rated voltage 1), safe separation 600 V basic isolation 1700 V Accuracy - Dynamic performance data X Typical accuracy @ I PN , TA = 25°C ± 0.5 % ε L Linearity < 0.2 % Typ Max I O Offset current 2) @ I P = 0, TA = 25°C ± 0.05 ± 0.15 mA I OM Residual current 3) @ I P = 0, after an overload of 3 x IPN ± 0.05 ± 0.15 mA I OT Thermal drift 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 4) @ 90 % of I P max < 1 µs f 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 < 8.5 m Ω R S Secondary coil resistance @ T A = 70°C 110 Ω L P Primary insertion inductance 5.5 µ H R IS Isolation resistance @ 500 V, T A = 25°C > 1500 M Ω m Mass 22 g Standards 5) EN 50178 Notes : 1) Pollution class 2 2) Measurement carried out after 15 mn functionning 3) The result of the coercive field of the magnetic circuit 4) With a di/dt of 100 A/µs 5) A list of corresponding tests is available Features •Closed loop (compensated) multi- turns current transducer using the Hall effect •Insulated plastic case recognized according to UL 94-V0. Special features •I PN = 2.5 A •I P = 0 .. ± 3.6 A •K N = 10 : 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. I PN = 2.5 A 990125/2 LEM Components ww w .lem.com |
유사한 부품 번호 - LA25-NPSP7 |
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유사한 설명 - LA25-NPSP7 |
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