Voltage Transducer LV 100-50
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
= 50 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 ± 15 V
I
SN
K
N
V
C
I
C
V
d
@ ± 50 V
max
@ ± 75 V
max
50
V
0 .. ± 75
V
200
mA
R
M min
R
M max
0
0
170
90
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
•
Primary resistor
R
1
incorporated into
the housing.
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
50
50 V / 50 mA
± 15
10 +
I
S
6
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
PN
± 0.7
< 0.1
Typ
Max
± 0.2
± 0.3
%
%
mA
mA
µs
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.
I
O
I
OT
t
r
0°C .. + 70°C
± 0.2
40
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
0 .. + 70
- 25 .. + 85
500 : 2000
10
0.25
60
850
EN 50178
°C
°C
W
k
Ω
Ω
g
030415/2
LEM Components
www.lem.com
Dimensions LV 100-50
(in mm. 1 mm = 0.0394 inch)
Front view
Left view
Connection
Top view
Mechanical characteristics
•
General tolerance
•
Transducer fastening
•
•
•
•
Fastening torque max
Connection of primary
Connection of secondary
Connection to the ground
Fastening torque max
± 0.3 mm
2 holes
∅
6.5 mm
M6 steel screws
5 Nm or 3.69 Lb - Ft.
M5 threaded studs
Faston 6.3 x 0.8 mm
M5 threaded stud
2.2 Nm or 1.62 Lb. -Ft.
Remarks
•
I
S
is positive when
V
P
is applied on terminal +HT.
•
The primary circuit of the transducer must be linked to the
connections where the voltage has to be measured.
•
This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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