Voltage Transducer CV 3-500
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).
V
PN
=
350 V
Electrical data
V
PN
V
P
V
S
K
N
R
L
C
L
V
C
I
C
V
d
V
e
Primary nominal r.m.s. voltage
Primary voltage, measuring range
Secondary analog voltage @
V
P 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
350
0 .. ± 500
10
500 V / 10 V
≥
1
≤
5
± 15
32 +
V
S
/
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
X
G
V
O
Overall accuracy @
V
P max
Offset voltage @
V
P
= 0
T
A
= 25°C
- 40°C .. + 85°C
T
A
= 25°C
- 40°C .. + 85°C
Max
± 0.2
± 0.6
± 5.0
± 13.0
%
%
mV
mV
µs
V/µs
kHz
t
r
Response time
1)
@ 90 % of
V
PN
dv/dt
dv/dt accurately followed
f
Frequency bandwidth (- 1 dB) @
V
PN
0.3
500
DC .. 300
Applications
•
AC variable speed drives and servo
motor drives
•
Static converters for DC motor drives
•
Uninterruptible Power Supplies
(UPS)
•
Power supplies for welding
applications.
General data
T
A
T
S
P
R
1
m
Ambient operating temperature
Ambient storage temperature
Total primary power loss
Primary resistance
Mass
Standards
2)
- 40 .. + 85
- 45 .. + 90
3.1
40
560
EN 50155
°C
°C
W
kΩ
g
Notes :
1)
2)
With a dv/dt of 500 V/µs
A list of corresponding tests is available.
011107/8
LEM Components
www.lem.com
LEM [ LEM ]
