Voltage Transducer LV 25-400
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
=
400 V
Electrical data
V
PN
V
P
I
PN
R
M
Primary nominal r.m.s. voltage
Primary voltage, measuring range
Primary nominal r.m.s. current
Measuring resistance
with ± 12 V
with ± 15 V
I
SN
K
N
V
C
I
C
V
d
@ ± 400 V
max
@ ± 600 V
max
@ ± 400 V
max
@ ± 600 V
max
400
V
0 .. ± 600
V
10
mA
R
M min
R
M max
30
30
100
100
200
100
320
180
Ω
Ω
Ω
Ω
Features
•
Closed loop (compensated) voltage
transducer using the Hall effect
•
Transducer with insulated plastic
case recognized according to
UL 94-V0
•
Primary resistor
R
1
and transducer
mounted on printed circuit board
128 x 60 mm.
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
25
mA
400 V / 25 mA
± 12 .. 15
V
10
(@ ± 15 V) +
I
S
mA
4.1
kV
Advantages
•
Excellent accuracy
•
Very good linearity
•
Low thermal drift
•
High immunity to external
interference.
Accuracy - Dynamic performance data
X
G
ε
L
Overall Accuracy @
V
PN
,
T
A
= 25°C
Linearity
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
Response time @ 90 % of
V
P max
± 0.8
< 0.2
Max
± 0.15
± 0.10 ± 0.60
± 0.10 ± 0.60
15
Typ
%
%
mA
mA
mA
µs
Applications
•
AC variable speed drives and servo
motor drives
•
Static converters for DC motor drives
•
Uninterruptible Power Supplies
(UPS)
•
Power supplies for welding
applications.
I
O
I
OT
t
r
- 25°C .. + 25°C
+ 25°C .. + 70°C
General data
T
A
T
S
N
P
R
1
R
S
m
Ambient operating temperature
Ambient storage temperature
Turns ratio
Total primary power loss
Primary resistance @
T
A
= 25°C
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
2)
1)
2)
- 25 .. + 70
- 40 .. + 85
2500 : 1000
4
40
110
60
EN 50178
°C
°C
W
k
Ω
Ω
g
Notes :
Between primary and secondary
A list of corresponding tests is available
980909/2
LEM Components
w w w .lem.com
LEM [ LEM ]
