CV4-4000

Voltage Transducer CV 4-4000 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). VPN = 2828 V Electrical data VPN VP VS KN RL CL VC IC Vd Primary nominal r.m.s. voltage Primary voltage, measuring range Secondary analog voltage @ VP max Conversion ratio Load resistance Capacitive loading Supply voltage (± 5 %) Current consumption R.m.s. voltage for AC isolation test, 50 Hz, 1 mn 2828 0 .. ± 4000 10 4000 V / 10 V ≥2 ≤5 ± 15 35 + VS / R L 9 V V V kΩ nF V mA kV Features • Closed loop (compensated) voltage • Insulated plastic case recognized • Patent pending. according to UL 94-V0 transducer Advantages • • • • Very good linearity Low thermal drift Low response time High bandwidth. Accuracy - Dynamic performance data Typ XG VO tr f Overall accuracy @ VP max Offset voltage @ VP = 0 T A = 25°C - 25°C .. + 70°C T A = 25°C - 25°C .. + 70°C Max ±1 ±2 ± 30 ± 60 % % mV mV µs kHz Applications • AC variable speed drives and servo • Static converters for DC motor drives • Uninterruptible Power Supplies • Power supplies for welding (UPS) motor drives Response time 1) @ 90 % of VPN Frequency bandwidth (- 3 dB) @ 50 % of VPN ≅ 25 DC .. 11 General data TA TS P R1 m Ambient operating temperature Ambient storage temperature Total primary power loss Primary resistance Mass Standards 2) 3) - 25 .. + 70 - 40 .. + 85 2.86 2.8 600 EN 50155 EN 50178 °C °C W MΩ g • Railway overhead line voltage measurement. applications Notes : 1) 2) 3) With a dv/dt of 1000 V/µs Specifications according to IEC 1000-4-3 are not guaranteed around 100 MHz. Sensitivity to induced radiation on connecting cable. A list of corresponding tests is available. 000613/2 LEM Components www.lem.com Dimensions CV 4-4000 Right view (in mm. 1 mm = 0.0394 inch) F ront view Left view Top view Secondary terminals Terminal Terminal Terminal Terminal + M 0 : : : : supply voltage + 15 V measure 0V supply voltage - 15 V Connection Mechanical characteristics • • • • • General tolerance Fastening Connection of primary Connection of secondary Fastening torque ± 0.5 mm 4 slots ∅ 6.6 mm M5 threaded studs M5 threaded studs 2.2 Nm or 1.62 Lb. -Ft. Remarks • VS is positive when VP is applied on terminal +HT. • 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.