Current Transducer LA 150-P
IPN = 150 A
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).
Preliminary
Electrical data
IPN
IP
RM
Primary nominal current
Primary current, measuring range
Measuring resistance
150
0 .. ± 200
TA = 85°C
A
A
TA = 70°C
Features
RM min RM max RM min RM max
with ±15V @± 200 A max
Secondary nominal current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
0
30
0
75
1 : 2000
± 15
15 W
mA
· Closed loop (compensation) current
transducer using the Hall effect
· Printed circuit board mounting
ISN
KN
VC
IC
V
mA
kV
app 16 + ISN
Vd
R.m.s. voltage for AC isolation test, 50/60Hz,1mn
2.5
Advantages
· Excellent accuracy
· Very good linearity
Accuracy-Dynamic performance data
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
X
Accuracy @ IPN, TA = 25°C @± 15V (± 5 %)
Linearity (0 .. ± IPN)
Electrical offset current @IP = 0, @TA = 25°C Max. ± 0.2
Residual current @ IP = 0,
after an excursion at 1x IPN
Thermal drift of IO
< ± 1
± 0.25 % of IPN
% of IPN
e
L
IO
mA
Iom
Max.± 0.15
mA
IOT
t r
± 0.005 mA/K
<1
> 200
DC .. 150 kHz
· Current overload capacity
Response time @ 90% of IP
di/dt accurately followed
Frequency bandwidth (- 1dB)1)
µs
A/µs
di/dt
f
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)
General data
TA
TS
RS
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance
Mass
- 10 .. + 80 °C
- 15 .. + 85 °C
80
25
W
g
· Power supplies for welding
applications
Notes : EN 50178 approval pending
1) Derating is needed to avoid excessive core heating at high frequency.
010118/2
LEM Components
www.lem.com