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| Current Transducer LTC 1000-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 = 1000 A Electrical data IPN IP IP RM Primary nominal r.m.s. current Primary current, measuring range @ 24 V Max overload not measurable Measuring resistance with 15 V with 24 V ISN KN VC IC @ 1000 A max @ 1200 A max @ 1000 A max @ 2000 A max 1000 A 0 .. 2400 1) A 10 / 10 kA/ms RM min RM max 0 0 0 0 15 7 50 7 Features * Closed loop (compensated) current transducer using the Hall effect * Insulated plastic case recognized according to UL 94-V0 * Railway equipment. Secondary nominal r.m.s. current Conversion ratio Supply voltage ( 5 %) Current consumption 200 mA 1 : 5000 15 .. 24 V < 30 (@24V)+ IS mA 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 Overall accuracy @ IPN , TA = 25C @ IPN , TA = - 40C .. + 85C Linearity error Offset current @ IP = 0, TA = 25C Thermal drift of IO - 40C .. + 85C Response time 2) @ 90 % of IPN di/dt accurately followed Frequency bandwidth (- 1 dB) < 0.4 <1 < 0.1 Max 0.5 1 <1 > 100 DC .. 100 % % % mA mA s A/s kHz L IO IOT tr di/dt f Applications * AC variable speed drives and servo motor drives * 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 = 85C Mass Standards - 40 .. + 85 C - 45 .. + 90 C 44 750 g EN 50155 : 2001 * Switched Mode Power Supplies (SMPS) * Power supplies for welding applications. Application Domain * Traction Notes : 1) 2) With a di/dt of > 5 A/s With a di/dt of 100 A/s. 060615/2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 1/4 LEM w w w .lem.com Current Transducer LTC 1000-S Isolation characteristics Vd Ve dCp dCl CTI Notes : R.m.s. voltage for AC isolation test, 50 Hz, 1 mn R.m.s. voltage for partial discharge extinction Creepage distance Clearance distance Comparative Tracking Index (Group I) 3) 4) 5) 13.4 3) 1.5 4) > 2.8 5) Min 66.70 45.90 600 kV kV kV mm mm Between primary and secondary + shield Between secondary and shield Test carried out with a busbar 40 mm centred in the through-hole. Safety This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the following manufacturer's operating instructions. Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a built-in device, whose conducting parts must be inaccessible after installation. A protective housing or additional shield could be used. Main supply must be able to be disconnected. 060615/2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 2/4 LEM w w w .lem.com Dimensions LTC 1000-S Front view (in mm. 1 mm = 0.0394 inch) Left view Connection Top view Mechanical characteristics * General tolerance * Fixing the transducer Recommended fastening torque * Primary through-hole * Connection of secondary Recommended fastening torque 1 mm 4 holes 5.5 mm 4 screws M5 4 Nm or 2.95 Lb.-Ft. 42 mm M5 threaded studs 2.2 Nm or 1.62 Lb.-Ft. Faston 6.3 x 0.8 mm Remarks * IS is positive when IP flows in the direction of the arrow. * Temperature of the primary conductor should not exceed 100C. * 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. 060615/2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 3/4 LEM w w w .lem.com LTC 1000-S / Mechanical adaptation accessories Lines Accessories 1 2 3 4 5 6 7 8 9 10 11 Busbar KIT * (busbar : 210 x 40 x 12 mm) Busbar KIT * (busbar : 185 x 40 x 8 mm) Busbar KIT * (busbar : 285 x 36 x 12 mm) Busbar KIT * (busbar : 260 x 36 x12 mm) Busbar KIT * (busbar : 195 x 36 x 10 mm) Busbar KIT * (busbar : 36 mm x 325 mm) Busbar KIT * (busbar : 185 x 40 x 10 mm) Busbar KIT * (busbar : 180 x 40 x 12 mm) Busbar Fastening Kit (M5 x 25) ** dedicated to busbars from lines 1 to 5 and lines 7, 8. Busbar Fastening Kit (M5 X 40)** dedicated to busbar from line 6 Feet fixing Kit *** References 93.34.61.100.0 * 93.34.61.102.0 93.34.61.103.0 93.34.61.104.0 ** 93.34.61.105.0 93.34.61.106.0 *** 93.34.61.107.0 93.34.61.108.0 93.34.61.200.0 93.34.61.201.0 93.34.63.100.0 including all the necessary for its mounting such as screws, washers, nuts, 2 clamps, busbar. as with * but without the busbar. including screws and 2 feet. R.m.s. voltage value for partial discharge extinction depends on the busbar. Refer to the datasheet of the corresponding product. 060615/2 LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. Page 4/4 LEM w w w .lem.com |
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