Voltage Transducer LV 100
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
= 10 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
I
SN
K
N
V
C
I
C
V
d
@ ± 10 mA
@ ± 20 mA
max
max
10
mA
0 .. ± 20
mA
R
M min
R
M max
0
0
150
50
Ω
Ω
mA
V
mA
kV
Features
•
Closed loop (compensated) voltage
transducer using the Hall effect
•
Insulated plastic case recognized
according to UL 94-V0.
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test
1)
, 50 Hz, 1 mn
50
10000 : 2000
± 15
10 +
I
S
6
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
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
0°C .. + 70°C
Response time
2)
@ 90 % of
V
PN
± 0.7
< 0.1
Typ
Max
± 0.2
± 0.3
%
%
mA
mA
µs
Advantages
•
•
•
•
•
•
Excellent accuracy
Very good linearity
Low thermal drift
Low response time
High bandwidth
High immunity to external
interference
•
Low disturbance in common mode.
I
O
I
OT
t
r
± 0.2
20 .. 100
General data
T
A
T
S
R
P
R
S
m
Ambient operating temperature
Ambient storage temperature
Primary coil resistance @
T
A
= 70°C
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
0 .. + 70
- 25 .. + 85
1900
60
460
EN 50178
°C
°C
Ω
Ω
g
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)
Between primary and secondary
R
1
= 100 kΩ (L/R constant, produced by the resistance and inductance
of the primary circuit).
030131/6
LEM Components
w w w .lem.com
LEM [ LEM ]
