LF2005-S

Current Transducer LF 2005-S 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). IPN = 2000 A 16103 Electrical data IPN IP RM Primary nominal r.m.s. current Primary current, measuring range @ ± 24 V Measuring resistance with ± 15 V with ± 24 V ISN KN VC IC Vd @ ± 2000 A max @ ± 2200 A max @ ± 2000 A max @ ± 3000 A max 2000 0 .. ± 3000 RM min RM max 0 0 5 5 8 5 29 11 A A Ω Ω Ω Ω Features • Closed loop (compensated) current transducer using the Hall effect • Insulated plastic case recognized according to UL 94-V0. Secondary nominal r.m.s. current Conversion ratio Supply voltage (± 5 %) Current consumption R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 400 mA 1 : 5000 ± 15 .. 24 V 33 (@ ± 24 V) + IS mA 6 kV 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. Accuracy - Dynamic performance data XG ε L Overall accuracy @ IPN , TA = 25°C Linearity error Offset current @ IP = 0, TA = 25°C Thermal drift of IO - 25°C .. + 70°C Response time 1) @ 90 % of IPN di/dt accurately followed Frequency bandwidth (- 1 dB) ± 0.3 < 0.1 Typ Max ± 0.5 ± 0.4 % % mA mA µs A/µs kHz IO IOT tr di/dt f Applications • AC variable speed drives and servo motor drives ± 0.2 50 DC .. 100 • Static converters for DC motor drives • Battery supplied applications • Uninterruptible Power Supplies (UPS) General data TA TS RS m Ambient operating temperature Ambient storage temperature Secondary coil resistance @ TA = 70°C Mass Standards 2) - 25 .. + 70 - 40 .. + 85 25 1.5 EN 50178 °C °C Ω kg • Switched Mode Power Supplies (SMPS) • Power supplies for welding applications. Notes : 1) 2) With a di/dt of 100 A/µs A list of corresponding tests is available. 060425/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 1/2 LEM w w w .lem.com Dimensions LF 2005-S Front view (in mm. 1 mm = 0.0394 inch) Left view Secondary terminals Pin Pin Pin + M : supply voltage + 15 .. 24 V : measure : supply voltage - 15 .. 24 V Connection Top view Mechanical characteristics • General tolerance • Fastening transducer Flat or vertical position Fastening torque • Primary through-hole • Connection of secondary ± 0.5 mm 4 holes ∅ 6.5 mm 4 screw M6 steel 5.5 Nm or 4.05 Lb. - Ft. 60.5 x 60.5 mm S3P-VH Remarks • IS is positive when IP flows in the direction of the arrow. • Temperature of the primary conductor should not exceed 100°C. • Dynamic performances (di/dt and response time) are best with a single bar completely filling the primary hole. • This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. 060425/6 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 2/2 LEM w w w .lem.com