Voltage Transducer LV 200-AW/2
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).
I
PN
= 20 mA
V
PN
= 100 .. 2500 V
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
with 鹵 15 V
with 鹵 24 V
I
SN
I
S
K
N
V
C
I
C
V
d
V
e
@ 鹵 20 mA
@ 鹵 40 mA
@ 鹵 20 mA
@ 鹵 40 mA
max
max
max
max
20
mA
0 .. 鹵 40
mA
R
M min
R
M max
0
0
60
60
90
25
170
65
鈩?/div>
鈩?/div>
鈩?/div>
鈩?/div>
Features
鈥?/div>
Closed loop (compensated) voltage
transducer using the Hall effect
鈥?/div>
Insulated plastic case recognized
according to UL 94-V0
鈥?/div>
Accessible electronic circuit
鈥?/div>
Shield between primary and
secondary circuit.
Secondary nominal r.m.s. current
Secondary current @
I
P max
Conversion ratio
Supply voltage (鹵 10 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
mA
200
mA
10000 : 2000
鹵 15 .. 24
V
30
(@ 鹵 24 V) +
I
S
mA
6
1)
kV
2)
1
kV
R.m.s. voltage for partial discharges extinction @ 10 pC 2.5
kV
Principle of use
鈥?/div>
For voltage measurements, a current
proportional to the measured voltage
must be passed through an external
resistor
R
1
which is selected by the
user and installed in series with the
primary circuit of the transducer.
Accuracy - Dynamic performance data
X
G
蔚
L
Overall Accuracy @
I
PN
,
T
A
= 25擄C
Linearity
Offset current @
I
P
= 0,
T
A
= 25擄C
Thermal drift of
I
O
Response time
3)
@ 90 % of
V
P max
鹵 0.5
< 0.1
Typ
Max
鹵 0.3
鹵 0.7
%
%
mA
mA
碌s
Advantages
鈥?/div>
Excellent accuracy
鈥?/div>
Very good linearity
鈥?/div>
Low thermal drift
鈥?/div>
High immunity to external
interference
I
O
I
OT
t
r
- 25擄C .. + 70擄C
鹵 0.4
20 .. 100
General data
T
A
T
S
R
P
R
S
m
Ambient operating temperature
Ambient storage temperature
Primary coil resistance @
T
A
= 25擄C
Secondary coil resistance @
T
A
= 70擄C
Mass
Standards
4)
- 25 .. + 70
- 40 .. + 85
420
40
1.6
EN 50178
擄C
擄C
鈩?/div>
鈩?/div>
kg
Applications
鈥?/div>
AC variable speed drives and servo
motor drives
鈥?/div>
Static converters for DC motor drives
鈥?/div>
Battery supplied applications
鈥?/div>
Uninterruptible Power Supplies
(UPS)
鈥?/div>
Power supplies for welding
applications.
Notes :
1)
2)
3)
4)
Between primary and secondary + shield
Between secondary and shield
R
1
= 50 k鈩?(L/R constant, produced by the resistance and inductance
of the primary circuit)
A list of corresponding tests is available
981103/7
LEM Components
w w w .lem.com
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