Voltage Transducer LV 100-250 VPN = 250 V For the electronic measurement of voltages : DC, AC, pulsed..., with a galvanic isolation between the primary circuit (high voltage) and the secondary circuit (electronic circuit). Electrical data VPN VP IPN RM Primary nominal r.m.s. voltage Primary voltage, measuring range Primary nominal r.m.s. current Measuring resistance with ± 15 V ISN KN VC IC Vd 250 V 0 .. ± 375 V 40 mA RM min RM max @ ± 250 V max @ ± 375 V max 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 0 0 170 90 Ω Ω 50 mA 250 V / 50 mA ± 15 V 10 + IS mA 6 kV Accuracy - Dynamic performance data XG ε Overall Accuracy @ VPN , TA = 25°C Linearity L ± 0.7 < 0.1 Typ IO IOT Offset current @ IP = 0, TA = 25°C Thermal drift of IO tr Response time @ 90 % of VP max 0°C .. + 70°C ± 0.2 % % Max ± 0.3 ± 0.3 75 Note : Ambient operating temperature Ambient storage temperature Turns ratio Total primary power loss Primary resistance @ TA = 25°C Secondary coil resistance @ TA = 70°C Mass Standards 1) 1) •Closed loop (compensated) voltage transducer using the Hall effect •Insulated plastic case recognized according to UL 94-V0 •Primary resistor R 1 incorporated into the housing. Advantages •Excellent accuracy •Very good linearity •Low thermal drift •High immunity to external interference. Applications mA mA •AC variable speed drives and servo µs •Static converters for DC motor drives •Uninterruptible Power Supplies motor drives (UPS) General data TA TS N P R1 RS m Features •Power supplies for welding 0 .. + 70 - 25 .. + 85 2500 : 2000 10 6.25 60 850 EN 50178 °C °C applications. W kΩ Ω g A list of corresponding tests is available 980709/1 LEM Components w w w .lem.com Dimensions LV 100-250 (in mm. 1 mm = 0.0394 inch) Front view Left view Secondary terminals Terminal + : supply voltage + 15 V Terminal M : measure Terminal - : supply voltage - 15 V Terminal : ground or earth Connection Top view Mechanical characteristics •General tolerance •Fastening •Connection of primary •Connection of secondary •Connection to the ground •Fastening torque Remarks ± 0.3 mm 2 holes ∅ 6.5 mm M5 threaded studs Faston 6.3 x 0.8 mm M5 threaded stud 2.2 Nm or 1.62 Lb. -Ft. •IS is positive when VP is applied on terminal +HT. •The primary circuit of the transducer must be linked to the connections where the voltage has to be measured. •This is a standard model. For different versions (supply voltages, turns ratios, unidirectional measurements...), please contact us. LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.