Datasheet

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080729/17
Voltage Transducer LV 25-P
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).
Electrical data
I
PN
Primary nominal current rms 10 mA
I
PM
Primary current, measuring range 0 .. ± 14 mA
R
M
Measuring resistance R
M min
R
M max
with ± 12 V @ ± 10 mA
max
30 190 Ω
@ ± 14 mA
max
30 100 Ω
with ± 15 V @ ± 10 mA
max
100 350 Ω
@ ± 14 mA
max
100 190 Ω
I
SN
Secondary nominal current rms 25 mA
K
N
Conversion ratio 2500 : 1000
V
C
Supply voltage (± 5 %) ± 12 .. 15 V
I
C
Current consumption 10 (@ ± 15 V) + I
S
mA
Accuracy - Dynamic performance data
X
G
Overall Accuracy @ I
PN
, T
A
= 25°C @ ± 12 .. 15 V ± 0.9 %
@ ± 15 V (± 5 %) ± 0.8 %
ε
L
Linearity error < 0.2 %
Typ Max
I
O
Offset current @ I
P
= 0, T
A
= 25°C ± 0.15 mA
I
OT
Temperature variation of I
O
0°C .. + 25°C ± 0.06 ± 0.25 mA
+ 25°C .. + 70°C ± 0.10 ± 0.35 mA
t
r
Response time
1)
to 90 % of I
PN
step 40 µs
General data
T
A
Ambient operating temperature 0 .. + 70 °C
T
S
Ambient storage temperature - 25 .. + 85 °C
R
P
Primary coil resistance @ T
A
= 70°C 250 Ω
R
S
Secondary coil resistance @ T
A
= 70°C 110 Ω
m Mass 22 g
Standards EN 50178: 1997
Note:
1)
R
1
= 25 kΩ (L/R constant, produced by the resistance and inductance
of the primary circuit).
16084
I
PN
= 10 mA
V
PN
= 10.. 500 V
Features
• Closed loop (compensated) voltage
transducer using the Hall effect
• Isolated 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
1
which is selected by the
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.
Application domain
• Industrial.