Current Transducer LB 1000-SI/SP2
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
=
1000 A
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
with ± 15 V
I
SN
K
N
V
C
I
C
@ ± 1000 A
max
@ ± 1500 A
max
1000
0 .. ± 1500
R
M min
R
M max
0
0
25
5
A
A
Ω
Ω
mA
VDC
mA
Features
•
Closed loop (compensated) current
transducer using the Hall effect
•
Insulated plastic case recognized
according to UL 94-V0.
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
200
1 : 5000
± 15
21 +
I
S
Special features
•
T
A
= + 10°C .. + 50°C
•
Shield between primary and
secondary.
Accuracy - Dynamic performance data
X
G
Advantages
± 0.3
< 0.1
Typ
Max
± 0.4
± 0.2
%
%
mA
mA
µs
A/µs
kHz
ε
L
Overall accuracy @
I
PN
,
T
A
= 25°C
Linearity error
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
+ 10°C .. + 50°C
Response time
1)
@ 90 % of
I
PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
I
O
I
OT
t
r
di/dt
f
± 0.1
<1
> 50
DC .. 100
•
•
•
•
•
•
•
•
Better zero crossing performance
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.
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
+ 10 .. + 50
°C
- 25 .. + 85
°C
40
Ω
700
g
EN 50178 : 1997
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.
Application domain
Note :
1)
With a di/dt of 100 A/µs
•
Industrial.
050816/1
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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