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CV3-2000 Datasheet Preview

CV3-2000 Datasheet

Voltage Transducer

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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 Primary nominal r.m.s. voltage
1400
V
V Primary voltage, measuring range
P
0 .. ± 2000
V
VS Secondary analog voltage @ VP max
10 V
K Conversion ratio
N
2000 V / 10 V
R L Load resistance
1 k
C Capacitive loading
L
5 nF
VC Supply voltage (± 5 %)
± 15
V
I Current consumption
C
32 + V / R mA
SL
Vd R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
6
kV
V R.m.s. voltage for partial discharge extinction @ 10 pC 2
e
kV
Accuracy - Dynamic performance data
X Overall accuracy @ V
G P max
V Offset voltage @ V = 0
OP
T = 25°C
A
- 40°C .. + 85°C
T = 25°C
A
- 40°C .. + 85°C
t Response time 1) @ 90 % of V
r P max
dv/dt dv/dt accurately followed
f Frequency bandwidth (- 1 dB) @ 25 % of V
PN
General data
Typ Max
± 0.2 %
± 0.6 %
± 5.0 mV
± 13.0 mV
0.4
900
DC .. 300
µs
V/µs
kHz
TA Ambient operating temperature
TS Ambient storage temperature
P Total primary power loss
R Primary resistance
1
m Mass
Standards 2)
- 40 .. + 85
- 45 .. + 90
3.1
640
560
EN 50155
°C
°C
W
k
g
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.
Applications
AC variable speed drives and servo
motor drives
Static converters for DC motor drives
Uninterruptible Power Supplies
(UPS)
Power supplies for welding
applications
Railway overhead line voltage
measurement.
Notes : 1) With a dv/dt of 900 V/µs
2) A list of corresponding tests is available
LEM Components
030129/8
www.lem.com




LEM

CV3-2000 Datasheet Preview

CV3-2000 Datasheet

Voltage Transducer

No Preview Available !

Dimensions CV 3-2000 (in mm. 1 mm = 0.0394 inch)
Front view
Left view
Secondary terminals
Terminal + : supply voltage + 15 V
Terminal M : measure
Terminal 0 : 0 V
Terminal - : supply voltage - 15 V
Top view
Connection
Red
Blue
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.


Part Number CV3-2000
Description Voltage Transducer
Maker LEM
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CV3-2000 Datasheet PDF






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