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Voltage Transducer CV 3-1000
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 =
700 V
Electrical data
VPN VP VS KN RL CL VC IC 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 700 0 .. 1000 10 1000 V / 10 V 1 5 15 32 + VS / R L V V V k nF V mA
Features
* Closed loop (compensated) voltage
transducer
* Insulated plastic case recognized
according to UL 94-V0
* Patent pending.
Advantages Accuracy - Dynamic performance data
Max 0.2 0.6 5 13 0.3 800 DC .. 500
XG VO
Overall accuracy @ VP max Offset voltage @ VP = 0
TA = 25C - 40C .. + 85C TA = 25C - 40C .. + 85C
% % mV mV s V/s kHz
* * * * * *
tr Response time 1) @ 90 % of VPN dv/dt dv/dt accurately followed f Frequency bandwidth (- 1 dB) @ 50 % of VPN
Excellent accuracy Very good linearity Low thermal drift Low response time High bandwidth High immunity to external interference * Low disturbance in common mode.
Applications
* * * * *
Single or three phases inverter Propulsion and braking chopper Propulsion converter Auxiliary converter Battery charger.
General data
TA TS P R1 m Ambient operating temperature Ambient storage temperature Total primary power loss Primary resistance Mass Standards - 40 .. + 85 C - 45 .. + 90 C 3.1 W 160 k 560 g EN 50155 : 1995
Application Domain
* Traction.
Note :
1)
With a dv/dt of 800 V/s
050805/8
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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LEM Components
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Voltage transducer CV 3-1000
Isolation characteristics
Vd Ve dCp dCl CTI R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn R.m.s. voltage for partial discharge extinction @ 10pC Creepage distance Clearance distance Comparative Tracking Index (Group I ) 6 2 Min 83.80 76.40 600 kV kV mm mm
Safety
This transducer must be used in electric/electronic equipment with respect to applicable standards and safety requirements in accordance with the 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.
050805/8
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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Dimensions CV 3-1000
Front view
(in mm. 1 mm = 0.0394 inch)
Left view
Connection
Rep. A-B
Clearance 76.40 mm
Creepage 83.80 mm
Top view Mechanical characteristics
* General tolerance * Transducer fastening
Recommended fastening torque * Connection of primary * Connection of secondary * Recommended fastening torque 0.3 mm 3 holes 5.5 mm 3 M5 steel screws 3.8 Nm or 2.80 Lb. -Ft. 2 M5 threaded studs 4 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.
050805/8
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
Page 3/3
LEM Components
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