Current Transducer LA 50-S/SP1
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).
I
PN
=
50 A
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
with 鹵 15 V
I
SN
K
N
V
C
I
C
V
d
@ 鹵 50 A
max
@ 鹵 100 A
max
50
0 .. 鹵 100
R
M min
R
M max
0
0
25
1 : 2000
鹵 15
10 +
I
S
3
330
100
A
A
鈩?/div>
鈩?/div>
mA
V
mA
kV
Features
鈥?/div>
Closed loop (compensated) current
transducer using the Hall effect
鈥?/div>
Insulated plastic case recognized
according to UL 94-V0.
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (鹵 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 min
Special features
鈥?/div>
I
P
= 0 .. 鹵 100 A
鈥?/div>
K
N
= 1 : 2000
Accuracy - Dynamic performance data
X
G
Advantages
鹵 0.5
< 0.1
Typ
Max
鹵 0.1
鹵 0.4
%
%
mA
mA
碌s
A/碌s
kHz
蔚
L
Overall accuracy @
I
PN,
T
A
= 25擄C
Linearity
Offset current @
I
P
= 0,
T
A
= 25擄C
Thermal drift of
I
O
Response time
1)
@ 90 % of
I
PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
I
O
I
OT
t
r
di/dt
f
- 10擄C .. + 70擄C
鹵 0.2
<1
> 50
DC .. 150
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Excellent accuracy
Very good linearity
Low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
interference
鈥?/div>
Current overload capability.
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
T
A
= 70擄C
Mass
Standards
2)
- 10 .. + 70
- 25 .. + 85
130
45
EN 50178
擄C
擄C
鈩?/div>
g
Applications
鈥?/div>
AC variable speed drives and servo
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
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.
Notes :
1)
2)
With a di/dt of 50 A/碌s
A list of corresponding tests is available.
991014/5
LEM Components
w w w .lem.com
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