參數(shù)資料
型號: LV25-1000
廠商: LEM
英文描述: Voltage Transducer LV 25-1000
中文描述: 電壓互感器低壓25-1000
文件頁數(shù): 1/2頁
文件大?。?/td> 73K
代理商: LV25-1000
Voltage Transducer LV 25-1000
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
Primary nominal r.m.s. voltage
1000
V
V
P
Primary voltage, measuring range
0 .. ± 1500
V
I
PN
Primary nominal r.m.s. current
8
mA
R
M
Measuring resistance
R
M min
R
M max
with ± 12 V
@ ±1000 V
max
30
200
@ ±1500 V
max
30
100
with ± 15 V
@ ±1000 V
max
100
320
@ ±1500 V
max
100
180
I
SN
Secondary nominal r.m.s. current
25
mA
K
N
Conversion ratio
1000 V / 25 mA
V
C
Supply voltage (± 5 %)
± 12 .. 15
V
I
C
Current consumption
10 (@±15V) + I
S
mA
V
d
R.m.s. voltage for AC isolation test 1), 50 Hz, 1 mn
4.1
kV
Accuracy - Dynamic performance data
X
G
Overall Accuracy @ V
PN , TA = 25°C
± 0.8
%
ε
L
Linearity
< 0.2
%
Typ
Max
I
O
Offset current @ I
P = 0, TA = 25°C
± 0.15
mA
I
OT
Thermal drift of I
O
- 25°C .. + 25°C
± 0.10 ± 0.60
mA
+ 25°C .. + 70°C
± 0.10 ± 0.60
mA
t
r
Response time @ 90 % of V
P max
40
s
General data
T
A
Ambient operating temperature
- 25 .. + 70
°C
T
S
Ambient storage temperature
- 40 .. + 85
°C
N
Turns ratio
3100 : 1000
P
Total primary power loss
8
W
R
1
Primary resistance @ T
A = 25°C
125
k
R
S
Secondary coil resistance @ T
A = 70°C
110
m
Mass
60
g
Standards 2)
EN 50178
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
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.
980909/2
V
PN
=
1000 V
LEM Components
ww w .lem.com
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