LV100_03 Datasheet, PDF (1/2 Pages) LEM – Voltage Transducer

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
Primary nominal r.m.s. current
I
Primary current, measuring range
P
R_M Measuring resistance
with ± 15 V
@ ± 10 mA _max
@ ± 20 mA
max
I_SN
Secondary nominal r.m.s. current
K _N Conversion ratio
V_C
Supply voltage (± 5 %)
I
Current consumption
C
V_d
R.m.s. voltage for AC isolation test ¹⁾, 50 Hz, 1 mn
Accuracy - Dynamic performance data
X
Overall Accuracy @ I , T = 25°C
εG
L
Linearity
PN A
I_O
Offset current @ I_P = 0, T_A = 25°C
I_OT
Thermal drift of I_O
0°C .. + 70°C
t
Response time ²⁾ @ 90 % of V
r
PN
General data
T_A
Ambient operating temperature
T
Ambient storage temperature
S
R _P Primary coil resistance @ T_A = 70°C
R
Secondary coil resistance @ T = 70°C
S
A
m
Mass
Standards
10
mA
0 .. ± 20
mA
R_{M min}
R_{M max}
0
150 Ω
0
50
Ω
50
mA
10000 : 2000
± 15
V
10 + I
mA
S
6
kV
± 0.7
%
< 0.1
%
Typ Max
± 0.2 mA
± 0.2 ± 0.3 mA
20 .. 100
µs
0 .. + 70
°C
- 25 .. + 85
°C
1900
Ω
60
Ω
460
g
EN 50178
Features
• Closed loop (compensated) voltage
transducer using the Hall effect
• Insulated plastic case recognized
according to UL 94-V0.
Principle of use
• For voltage measurements, a current
proportional to the measured voltage
must be passed through an external
resistor R which is selected by the
1
user and installed in series with the
primary circuit of the transducer.
Advantages
• Excellent accuracy
• Very good linearity
• Low thermal drift
• Low response time
• High bandwidth
• High immunity to external
interference
• Low disturbance in common mode.
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⁾ Between primary and secondary
2) _{R 1 = 100 kΩ (L/R constant, produced by the resistance and inductance}
of the primary circuit).
030131/6
LEM Components
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