CV3-2000

Voltage Transducer CV 3-2000 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 = 1400 V Electrical data VPN VP VS KN RL CL VC IC Vd Ve 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 R.m.s. voltage for partial discharge extinction @ 10 pC 1400 0 .. ± 2000 10 2000 V / 10 V ≥1 ≤5 ± 15 32 + VS / R L 6 2 V V V kΩ nF V mA kV kV Features • Closed loop (compensated) voltage transducer • Insulated plastic case recognized according to UL 94-V0 • Patent pending. Advantages • • • • • • Excellent accuracy Very good linearity Low thermal drift Low response time High bandwidth High immunity to external interference • Low disturbance in common mode. Accuracy - Dynamic performance data Typ XG VO Overall accuracy @ VP max Offset voltage @ VP = 0 TA = 25°C - 40°C .. + 85°C TA = 25°C - 40°C .. + 85°C Max ± 0.2 ± 0.6 ± 5.0 ± 13.0 % % mV mV µs V/µs kHz tr Response time 1) @ 90 % of VP max dv/dt dv/dt accurately followed f Frequency bandwidth (- 1 dB) @ 25 % of VPN 0.4 900 DC .. 300 Applications • AC variable speed drives and servo motor drives General data TA TS P R1 m Ambient operating temperature Ambient storage temperature Total primary power loss Primary resistance Mass Standards 2) - 40 .. + 85 - 45 .. + 90 3.1 640 560 EN 50155 °C °C W kΩ g • Static converters for DC motor drives • Uninterruptible Power Supplies (UPS) • Power supplies for welding applications • Railway overhead line voltage measurement. Notes : 1) 2) With a dv/dt of 900 V/µs A list of corresponding tests is available 030129/8 LEM Components www.lem.com Dimensions CV 3-2000 Front view (in mm. 1 mm = 0.0394 inch) Left view Secondary terminals Terminal Terminal Terminal Terminal + M 0 : : : : supply voltage + 15 V measure 0V supply voltage - 15 V Connection Red Blue Top view Mechanical characteristics • General tolerance • Transducer fastening Fastening torque max • Connection of primary • Connection of secondary • Fastening torque max ± 0.3 mm 3 holes ∅ 5.5 mm 3 M5 steel screws 4 Nm or 2.95 Lb. - Ft. 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. • CEM tested with a shielded secondary cable. Shield connected to 0 V at both ends, or disconnected. • 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.