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LA205-S Arkusz danych(PDF) 1 Page - LEM

Numer części LA205-S
Szczegółowy opis  Current Transducer
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Producent  LEM [LEM]
Strona internetowa  http://www.lem.co.jp/HQ/en
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LA205-S Arkusz danych(HTML) 1 Page - LEM

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Current Transducer LA 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 .. ± 300
A
Î
P max
Measuring overload 1)
600
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
68
0
66
@ ± 300 A
max
0
33
0
30
with ± 15 V
@ ± 200 A
max
5
95
5
93
@ ± 300 A
max
5
50
5
49
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
20 (@ ± 15 V) + I
S mA
V
b
R.m.s rated voltage 2), safe separation
1625
V
basic isolation
3250
V
Accuracy - Dynamic performance data
X
G
Overall accuracy @ I
PN , TA = 25°C
± 0.8
%
ε
L
Linearity
< 0.1
%
Typ
Max
I
O
Offset current @ I
P = 0, TA = 25°C
± 0.15
mA
I
OM
Residual current 3) @ I
P = 0, after an overload of 3 x IPN
± 0.50
mA
I
OT
Thermal drift of I
O
- 10°C .. + 85°C
± 0.15 ± 0.30
mA
t
ra
Reaction time @ 10 % of I
PN
< 500
ns
t
r
Response time 4) @ 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
- 10 .. + 85
°C
T
S
Ambient storage temperature
- 40 .. + 90
°C
R
S
Secondary coil resistance @
T
A = 70°C
35
T
A = 85°C
37
m
Mass
110
g
Standards 5)
EN 50178
Notes : 1) 3 mn/hour @ V
C = ± 15 V, R M = 5 Ω
2) Pollution class nr 2. W ith a non insulated primary bar which fills the
through-hole
3) The result of the coercive field of the magnetic circuit
4) With a di/dt of 100 A/µs
5) A list of corresponding tests is available
Features
Closed loop (compensated) current
transducer using the Hall effect
Insulated plastic case recognized
according to UL 94-V0
Patent pending.
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.
I
PN
=
200 A
020711/6
LEM Components
www .lem.com


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