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參數(shù)資料
| 型號： | LV25-P |
| 廠商： | LEM |
| 英文描述： | VOLTAGE TRANSDUCER LV 25-P |
| 中文描述： | 電壓互感器低壓25磷 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 51K |
| 代理商： | LV25-P |
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
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
10
0 .. ± 14
R
M min
30
30
100
100
mA
mA
R
M max
190
100
350
190
with ± 12 V
@ ± 10 mA
max
@ ± 14 mA
max
@ ± 10 mA
max
@ ± 14 mA
max
with ± 15 V
I
SN
K
N
V
C
I
C
V
d
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test
1)
, 50 Hz, 1 mn
25
2500 : 1000
± 12 .. 15
10
(@ ± 15 V) +
I
S
mA
2.5
mA
V
kV
Accuracy - Dynamic performance data
X
G
e
L
Overall Accuracy @
I
PN
,
T
A
= 25°C
@ ± 12 .. 15 V
@ ± 15 V (± 5 %)
± 0.9
± 0.8
< 0.2
%
%
%
Linearity
Typ
Max
± 0.15
I
O
I
OT
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
mA
mA
mA
0°C .. + 25°C
+ 25°C .. + 70°C
± 0.06 ± 0.25
± 0.10 ± 0.35
t
r
Response time
2)
@ 90 % of
V
P max
40
μs
General data
T
A
T
S
R
P
R
S
m
Ambient operating temperature
Ambient storage temperature
Primary coil resistance @
T
A
= 70°C
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
3)
0 .. + 70
- 25 .. + 85
250
110
22
EN 50178
°C
°C
g
Notes :
1)
Between primary and secondary
2)
R
= 25 k
(L/R constant, produced by the resistance and inductance
of the primary circuit)
3)
A list of corresponding tests is available
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
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.
981125/14
I
PN
V
PN
= 10 .. 500
V
= 10
mA
LE M C omponents
Tope Co., Ltd. Tel: (02) 8228-0658 Fax: (02) 8228-0659 http://www.sensor.com.tw e-mail: tope@ms1.hinet.net
www.lem.com
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