Current Transducer LA 150-P
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
I
PN
= 150 A
46090
Electrical data
I
PN DC
I
PN
I
PM
R
M
Primary continuous direct current (nominal)
150
A
Primary nominal current rms
106
A
Primary current, measuring range
0 .. ± 200
A
Measuring resistance
T
A
= 70°C
T
A
= 85 °C
R
M mini
R
M maxi
R
M mini
R
M maxi
@ ±15V, ± 200 A
maxi
0
30
0
15
Ω
Secondary current
75
mA
Secondary nominal current rms
53
mA
Conversion ratio
1 : 2000
Supply voltage (± 5 %)
± 15
V
Current consumption
16 +
I
S
mA
Rms voltage for AC isolation test, 50 Hz,1min
2.5
kV
Features
•
Closed loop (compensation) current
transducer using the Hall effect
•
Printed circuit board mounting
I
S
I
SN
K
N
V
C
I
C
V
d
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 capacity
Accuracy-Dynamic performance data
X
ε
L
I
OE
I
OM
I
OT
t
r
di/dt
BW
Accuracy @
I
PN DC
,
T
A
= 25°C, ± 15 V (± 5 %)
Linearity error (0 .. ±
I
PN DC
)
Electrical offset current @
I
P
= 0,
T
A
= 25°C
Magnetic offset current @
I
P
= 0 and specified
R
M
,
after an overload of 1 x
I
PN DC
Temperature variation of
I
O
Response time to 90% of
I
PN DC
step
di/dt accurately followed
Frequency bandwidth (- 1 dB)
1)
< ± 1 % of
I
PN DC
± 0.25% of
I
PN DC
< ± 0.2
mA
< ± 0.15
mA
< ± 0.005 mA
<1
µs
> 200
A/µs
DC .. 150 kHz
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
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance
Mass
Standards
- 10 .. + 80 °C
- 15 .. + 85 °C
80
Ω
25
g
EN 50178: 1997
Application Domain
•
Industrial
Notes :
1)
Derating is needed to avoid excessive core heating at high frequency.
Page 1/2
061110/7
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
LEM [ LEM ]
