LV200-AW Datasheet, PDF (1/2 Pages) LEM – Voltage Transducer LV 200-AW/2

Voltage Transducer LV 200-AW/2
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 = 20 mA
V = 100 .. 2500 V
PN
Electrical data
I
Primary nominal r.m.s. current
PN
I_P
Primary current, measuring range
R
Measuring resistance
M
20
mA
0 .. ± 40
mA
R
M min
R
M max
with ± 15 V
with ± 24 V
@ ± 20 mA
max
@ ± 40 mA _max
@ ± 20 mA
max
@ ± 40 mA _max
0
90
Ω
0
25
Ω
60
170 Ω
60
65
Ω
I_SN
Secondary nominal r.m.s. current
I_S
Secondary current @ I_{P max}
K _N Conversion ratio
V_C Supply voltage (± 10 %)
I
Current consumption
C
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
mA
200
mA
10000 : 2000
± 15 .. 24
V
30
(@
±
24
V
)
+
I
S
mA
6 ¹⁾
kV
1 ²⁾
kV
V_e
R.m.s. voltage for partial discharges extinction @ 10 pC 2.5
kV
Accuracy - Dynamic performance data
Features
•Closed loop (compensated) voltage
transducer using the Hall effect
•Insulated plastic case recognized
according to UL 94-V0
•Accessible electronic circuit
•Shield between primary and
secondary circuit.
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.
εX G
L
Overall Accuracy @ I_PN , T_A = 25°C
Linearity
I_O
Offset current @ I_P = 0, T_A = 25°C
I_OT
Thermal drift of I_O
- 25°C .. + 70°C
t_r
Response time ³⁾ @ 90 % of V_{P max}
General data
± 0.5
%
< 0.1
%
Typ Max
± 0.3 mA
± 0.4 ± 0.7 mA
20 .. 100
µs
Advantages
•Excellent accuracy
•Very good linearity
•Low thermal drift
•High immunity to external
interference
Applications
T
Ambient operating temperature
A
T_S
Ambient storage temperature
R
Primary coil resistance @ T = 25°C
P
A
R _S Secondary coil resistance @ T_A = 70°C
m
Mass
Standards ⁴⁾
- 25 .. + 70
°C
- 40 .. + 85
°C
420
Ω
40
Ω
1.6
kg
EN 50178
Notes : ¹⁾ Between primary and secondary + shield
2) _{Between secondary and shield}
3) _{R 1 = 50 kΩ (L/R constant, produced by the resistance and inductance}
of the primary circuit)
4) _{A list of corresponding tests is available}
•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.
981103/7
LEM Components
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