LV200-AW_03 Datasheet, PDF (1/2 Pages) LEM – LV200-AW

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_PN = 100 .. 2500 V
Electrical data
I _PN Primary nominal r.m.s. current
I_P
Primary current, measuring range
R_M Measuring resistance
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_C
Current consumption
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
mA
200
mA
10000 : 2000
± 15 .. 24
V
30 (@±24V )+I_S m A
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 error
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_PN
General data
± 0.5
%
< 0.1
%
Typ Max
± 0.3 m A
± 0.4 ± 0.7 m A
20 .. 100
µs
Advantages
• Excellent accuracy
• Very good linearity
• Low thermal drift
• High immunity to external
interference
Applications
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R _P Primary coil resistance @ T_A = 25°C
R _S Secondary coil resistance @ T_A = 70°C
m Mass
Standards
- 25 .. + 70
°C
- 40 .. + 85
°C
420
Ω
40
Ω
1.6
kg
EN 50178 (01.10.97)
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)
• 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 .
030916/8
LEM Components
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