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| Current Transducer HTFS 200..800-P/SP2 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). IPN = 200 - 400 - 800A All Data are given with a R L = 10 k Electrical data Primary nominal r.m.s. current IPN (A) 200 400 800 Primary current measuring range IP (A) 300 600 1200 Type Features * Hall effect measuring principle * Galvanic isolation between primary * Low power consumption * Single power supply +5V * Ratiometric offset * TA = -40..+105 C * PCB fixation by 4 O1 pins and secondary circuit HTFS 200-P/SP2 HTFS 400-P/SP2 HTFS 800-P/SP2 VOUT VREF RL ROUT CL VC IC Analog output voltage @ IP IP = 0 Internal Reference1) - Output voltage VREF Output impedance VREF Load impedance Output load resistance Output impedance Max. output capacitive load Supply voltage ( 5 %) Current consumption @ VC = 5 V VREF (1.25*IP/IPN) V VREF 0.025 V 1/2VC 0.025 V typ. 200 200 k 2 k < 10 <1 F 5 V 22 mA Advantages * Small size and space saving * Only one design for wide current * High immunity to external ratings range interference. Accuracy - Dynamic performance data Accuracy @ IPN , TA = 25C Linearity 0 .. 1.5 x IPN TCVOUT Thermal drift of VOUT @ IP = 0 TCVREF Thermal drift of VREF TCVOUT / VREF Thermal drift of VOUT / VREF @ IP = 0 TCG Thermal drift of the gain VOM Residual voltage @ IP = 0, after an overload of 3 x IPN DC t ra Reaction time @ 10 % of IPN tr Response time @ 90 % of IPN di/dt di/dt accurately followed Output noise (DC ..10 kHz) (DC .. 1 MHz) f Frequency bandwidth (-3 dB) 3) L X 2) 1 0.5 0.3 0.01 0.2 <0.5 <3 <7 > 100 < 15 < 40 DC .. 20 % of IPN % of IPN mV/K %/K mV/K % of IPN s s A/s mVpp mVpp kHz * VREF. IN/OUT Applications * Forklift drives * AC variable speed drives * Static converters for DC motor drives * Battery supplied applications * Uninterruptible Power Supplies * Switched Mode Power Supplies * Power supplies for welding applications. (SMPS) (UPS) 0.05% of reading/K General data TA TS dCp dCl CTI m Ambient operating temperature Ambient storage temperature Creepage distance Clearance distance Comparative tracking index (Group IIIa) UL94 classification Mass Standards - 40 .. + 105 - 40 .. + 105 >4 >4 220 V0 60 C C mm mm V g 041222/2 EN 50178 (97-10-01) LEM Components w w w .lem.com Current Transducer HTFS 200..800-P/SP2 Insulation category Vb Nominal Voltage with IEC 61010-1 standards and following conditions - Single insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field Nominal Voltage with EN 50178 standards and following conditions - Reinforced insulation - Over voltage category III - Pollution degree 2 - Heterogeneous field R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn R.m.s. voltage for partial discharge extinction @ 10pC Impulse withstand voltage 1.2/50s 150 V r.m.s. Vb 150 V r.m.s. Vd Ve Vw 2.5 >1 4 kV kV kV If insulated cable is used for the primary circuit, the voltage category could be improved with the following table : Cable insulation (primary) Category HAR 03 300V CAT III HAR 05 400V CAT III HAR 07 500V CAT III Notes : 1) It is possible to overdrive VREF with an external reference voltage between 2 - 2.8 V providing its ability to sink or source approx. 2.5 mA. 2) Excluding offset. 3) Small signal only to avoid excessive heatings of the magnetic core. Safety : Caution, risk of danger Caution, risk of electrical shock This transducer shall be used in accordance with manufacturer instruction. Power supply shall be a low voltage source and shall have an efficient protective system against over current. Power supply must incorporate a circuit breaker. This transducer shall be used in an electric/electronic equipment in respect of standards rules and applicable safety requirements. Primary bar and output terminals can provide hazardous voltage. This transducer is a built in device, of which conducting parts must be inaccessible by installation. Protective envelope or additional shield must be used. w w w .lem.com LEM Components HTFS 200..800-P/SP2 Dimensions (in mm) Ip 0.5 33 16.5 R3 3 40 33 d22 16 5 26 3-P=2.54 4 4-d=1.0 1 4-0.25x0.5 3.5+/-1 4.5 7 Required Connection Circuit Terminal Pin HTFS 4 Ref-IN Vref(IN/OUT) Output 47nF 47nF 4.7nF 3 Output 2 0V 1 +5V 1...+5V 2...0V 3...Output 4...Vref(IN/OUT) 0V +5V Operation Principle +Vc Vout Vref.(IN/OUT) Ip 0V Mechanical characteristics * * * * General tolerance Fixation Recommended PCB hole Fastening & connection of secondary Recommended PCB hole 0.2 mm 4 pins x O 1.0 O 1.2 mm 4 pins 0.5 x 0.25 O 0.7 mm Remarks * VOUT is positive when IP flows in the direction of the arrow. * Temperature of the primary conductor should not exceed 120C. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice. 20.3 |
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