Voltage Transducer LV 25-P/SP2
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
I
R
I
K
V
I
V
X
I
I
t
T
T
R
R
m
Note :
LEM
PN
P
SN
C
O
O T
r
C
A
S
d
M
N
G
L
P
S
Electrical data
Accuracy - Dynamic performance data
General data
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test , 50 Hz, 1 mn
Overall Accuracy @ I
Linearity error
Offset current @ I
Thermal drift of I
Response time
Ambient operating temperature
Ambient storage temperature
Primary coil resistance @ T
Secondary coil resistance @ T
Mass
Standards
1)
R
of the primary circuit).
1
with ± 15 V
= 25 k
(L/R constant, produced by the resistance and inductance
1)
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
O
@ 90 % of V
P
= 0, T
PN
, T
16073
A
A
= 25°C
@ ± 10 mA
@ ± 14 mA
= 25°C
A
= 85°C
PN
A
= 85°C
+ 25°C .. + 85°C
- 40°C .. + 25°C
max
max
100
100
± 0.15 ± 0.60
± 0.10 ± 0.80
10
0 .. ± 14
R
25
2500 : 1000
± 15
10 + I
4.1
± 0.8
< 0.2
25
- 40 .. + 85
- 45 .. + 90
300
117
22
EN 50155 : 1995
Typ
M min
S
± 0.15
Max
343
183
R
M max
mA
mA
mA
mA
mA
mA
mA
kV
µs
°C
°C
%
%
V
g
I
V
Features
Special features
Principle of use
Advantages
Applications
PN
Closed loop (compensated) voltage
transducer using the Hall effect
Insulated plastic case recognized
according to UL 94-V0.
V
T
Railway equipment.
For voltage measurements, a current
proportional to the measured voltage
must be passed through an external
resistor R
user and installed in series with the
primary circuit of the transducer.
Excellent accuracy
Very good linearity
Low thermal drift
Low response time
High bandwidth
High immunity to external
interference
Low disturbance in common mode.
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.
PN
A
d
= 4.1 k V
= - 40°C .. + 85°C
=
=
1
which is selected by the
10 mA
10 .. 1500 V
w w w .lem.com
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