LV25-1200 Datasheet, PDF (1/2 Pages) LEM – Voltage Transducer LV 25-1200

Voltage Transducer LV 25-1200
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 = 1200 V
Electrical data
V_PN Primary nominal r.m.s. voltage
V
Primary voltage, measuring range
P
I_PN
Primary nominal r.m.s. current
R
Measuring resistance
M
with ± 12 V
with ± 15 V
@ ±1200 V
max
@ ±1800 V _max
@ ±1200 V
max
@ ±1800 V _max
I_SN
Secondary nominal r.m.s. current
K _N Conversion ratio
V_C Supply voltage (± 5 %)
I_C
Current consumption
V_d
R.m.s. voltage for AC isolation test ¹⁾, 50 Hz, 1 mn
Accuracy - Dynamic performance data
εX G
L
Overall Accuracy @ V_PN , T_A = 25°C
Linearity
I
Offset current @ I = 0, T = 25°C
O
P
A
I_OT
Thermal drift of I_O
- 25°C .. + 25°C
+ 25°C .. + 70°C
t_r
Response time @ 90 % of V_PN
General data
T
Ambient operating temperature
A
T_S
Ambient storage temperature
N
Turns ratio
P
Total primary power loss
R
Primary resistance @ T = 25°C
1
A
R _S Secondary coil resistance @ T_A = 70°C
m
Mass
Standards ²⁾
1200
V
0 .. ± 1800
V
6.7
mA
R
M min
R
M max
30
200 Ω
30
100 Ω
100 320 Ω
100 180 Ω
25
mA
1200 V / 25 mA
± 12 .. 15
V
10 (@±15V) + I_S mA
4.1
kV
± 0.8
%
< 0.2
%
Typ Max
± 0.15 mA
± 0.10 ± 0.60 mA
± 0.10 ± 0.35 mA
60
µs
- 25 .. + 70
°C
- 40 .. + 85
°C
3700 : 1000
8
W
180
kΩ
110
Ω
60
g
EN 50178
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.
Advantages
• Excellent accuracy
• Very good linearity
• Low thermal drift
• High immunity to external
interference.
Applications
• AC variable speed drives and servo
motor drives
• Static converters for DC motor drives
• Uninterruptible Power Supplies
(UPS)
• Power supplies for welding
applications.
Notes : ¹⁾ Between primary and secondary
2) _{A list of corresponding tests is available}
990823/3
LEM Components
www.lem.com