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LF205-S Arkusz danych(PDF) 1 Page - LEM

Numer części LF205-S
Szczegółowy opis  Current Transducer
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Strona internetowa  http://www.lem.co.jp/HQ/en
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LF205-S Arkusz danych(HTML) 1 Page - LEM

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060522/11
LEM
www .lem.com
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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Current Transducer LF 205-S
For the electronic measurement of currents : DC, AC, pulsed...,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
Electrical data
I
PN
Primary nominal r.m.s. current
200
A
I
P
Primary current, measuring range
0 .. ± 420
A
R
M
Measuring resistance @
T
A = 70°C
T
A = 85°C
R
M min RM max RM min RM max
with ± 12 V
@ ± 200 A
max
0
71
0
69
@ ± 420 A
max
0
14
0
12
with ± 15 V
@ ± 200 A
max
0
100
23
98
@ ± 420 A
max
0
28
23
26
I
SN
Secondary nominal r.m.s. current
100
mA
K
N
Conversion ratio
1 : 2000
V
C
Supply voltage (± 5 %)
± 12 .. 15
V
I
C
Current consumption @ ± 15 V
17 + I
S
mA
Accuracy - Dynamic performance data
X
G
Overall accuracy @ I
PN , TA = 25°C
± 0.5
%
ε
L
Linearity error
< 0.1
%
Typ
Max
I
O
Offset current @ I
P = 0, TA = 25°C
± 0.2
mA
I
OM
Residual current 1) @ I
P = 0, after an overload of 3 x IPN
± 0.1
mA
I
O T
Thermal drift of I
O
- 40°C .. + 85°C
± 0.12 ± 0.4
mA
t
ra
Reaction time @ 10 % of I
PN
< 500
ns
t
r
Response time 2) @ 90 % of I
PN
< 1
µs
di/dt
di/dt accurately followed
> 100
A/µs
f
Frequency bandwidth (- 3 dB)
DC .. 100
kHz
General data
T
A
Ambient operating temperature
- 40 .. + 85
°C
T
S
Ambient storage temperature
- 40 .. + 90
°C
R
S
Secondary coil resistance @ T
A = 70°C
33
@ T
A = 85°C
35
m
Mass
78
g
Standards
EN 50178 : 1997
Notes : 1) The result of the coercive field of the magnetic circuit
2) With a di/dt of 100 A/µs.
Features
Closed loop (compensated) current
transducer using the Hall effect
Insulated plastic case recognized
according to UL 94-V0.
Advantages
Excellent accuracy
Very good linearity
Low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
interference
Current overload capability.
Applications
AC variable speed drives and servo
motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies
(UPS)
Switched Mode Power Supplies
(SMPS)
Power supplies for welding
applications.
Application domain
Industry.
I
PN
=
200 A
16135


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