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 ± 15 V
with ± 24 V
I
SN
I
S
K
N
V
C
I
C
V
d
V
e
@ ± 20 mA
max
@ ± 40 mA
max
@ ± 20 mA
max
@ ± 40 mA
max
20
mA
0 .. ± 40
mA
R
M min
R
M max
0
0
60
60
90
25
170
65
Ω
Ω
Ω
Ω
Features
•
Closed loop (compensated) voltage
transducer using the Hall effect
•
Insulated plastic case recognized
according to UL 94-V0
•
Accessible electronic circuit
•
Shield between primary and
secondary circuit.
Secondary nominal r.m.s. current
Secondary current @
I
P max
Conversion ratio
Supply voltage (± 10 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
mA
200
mA
10000 : 2000
± 15 .. 24
V
30
(@± 24 V )+
I
S
m A
6
1)
kV
2)
1
kV
R.m.s. voltage for partial discharges extinction @ 10 pC 2.5
kV
Principle of use
•
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
ε
L
Overall Accuracy @
I
PN
,
T
A
= 25°C
Linearity error
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
Response time
3)
@ 90 % of
V
PN
± 0.5
< 0.1
Typ
Max
± 0.3
± 0.7
%
%
mA
mA
µs
Advantages
•
•
•
•
Excellent accuracy
Very good linearity
Low thermal drift
High immunity to external
interference
I
O
I
OT
t
r
- 25°C .. + 70°C
± 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°C
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
- 25 .. + 70
°C
- 40 .. + 85
°C
420
Ω
40
Ω
1.6
kg
EN 50178 (01.10.97)
Applications
•
AC variable speed drives and servo
•
•
•
•
motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies
(UPS)
Power supplies for welding
applications .
Notes :
1)
2)
3)
Between primary and secondary + shield
Between secondary and shield
R
1
= 50 kΩ (L/R constant, produced by the resistance and inductance
of the primary circuit)
030916/8
LEM Components
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