Current Transducer LB 500-S/SP1
IPN = 500 A
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).
Preliminary
Features
Electrical data
· Closed loop (compensated) current
transducer using the Hall effect
· Insulated plastic case recognized
according to UL 94-V0.
IPN
IP
RM
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
500
0 .. ± 750
RM min
A
A
RMmax
with ± 15 V
@ ± 500 A max
@ ± 750 A max
5
5
33
15
W
W
Special features
· VC = ± 15 (± 5 %) V
· KN = 1 : 2500
ISN
KN
VC
IC
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
200
mA
1 : 2500
± 15
20+IS
6 1)
· Low thermal offset drift with
temperature
· Better zero crossing performance
· TA = + 10°C .. + 50°C
· Shield between primary and
secondary connected to VC " -"
V
mA
kV
Vd
Accuracy - Dynamic performance data
Advantages
X
e
Accuracy @ IPN, TA = 25°C
Linearity
± 0.5
< 0.1
%
%
· Excellent accuracy
· Very good linearity
L
Typ Max
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
IO
IOT
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
± 0.500 mA
± 0.064 mA
+ 10°C .. + 50°C
tr
Response time 2) @ 90 % of IPN
< 1
> 50
µs
A/µs
di/dt di/dt accurately followed
f
Frequency bandwidth (- 1 dB)
Zero crossing distortion
DC .. 150
kHz
negligeable
· Current overload capability.
General data
Applications
· AC variable speed drives and servo
motor drives
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
TA
TS
RS
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ TA = 50°C
Mass
Standards
+ 10 .. + 50
- 25 .. + 85
30
670
EN 50178
°C
°C
W
g
· Switched Mode Power Supplies
(SMPS)
· Power supplies for welding
applications
· HVDC transmisions.
1)
Notes : Between primary and secondary.
2)
With a di/dt of 100 A/µs
990803/2
LEM Components
www.lem.com