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參數(shù)資料
| 型號(hào)： | LV25-800 |
| 廠商： | LEM |
| 英文描述： | Voltage Transducer LV 25-800 |
| 中文描述： | 電壓互感器低壓25-800 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 78K |
| 代理商： | LV25-800 |
Voltage Transducer LV 25-800
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
V
PN
V
P
I
PN
R
M
Primary nominal r.m.s. voltage
Primary voltage, measuring range
Primary nominal r.m.s. current
Measuring resistance
800
0 .. ± 1200
10
R
M min
30
30
100
100
V
V
mA
R
M max
200
100
320
180
with ± 12 V
@ ± 800 V
max
@ ±1200 V
max
@ ± 800 V
max
@ ±1200 V
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
800 V / 25 mA
± 12 .. 15
10
(@ ± 15 V) +
I
S
mA
4.1
mA
V
kV
Accuracy - Dynamic performance data
X
G
e
L
Overall Accuracy @
V
PN
,
T
A
= 25°C
Linearity
± 0.8
< 0.2
%
%
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
- 25°C .. + 25°C
+ 25°C .. + 70°C
± 0.10 ± 0.60
± 0.10 ± 0.60
t
r
Response time
@ 90 % of
V
P max
25
μs
General data
T
A
T
S
N
P
R
1
R
S
m
Ambient operating temperature
Ambient storage temperature
Turns ratio
Total primary power loss
Primary resistance @
T
= 25°C
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
2)
- 25 .. + 70
- 40 .. + 85
2500 : 1000
8
80
110
60
EN 50178
°C
°C
W
k
g
Notes :
1)
Between primary and secondary
2)
A list of corresponding tests is available
Features
Closed loop (compensated) voltage
transducer using the Hall effect
Transducer with insulated plastic
case recognized according to
UL 94-V0
Primary resistor
R
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.
980909/2
V
PN
=
800
V
LE M C omponents
www.lem.com
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