Datasheet

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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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080715/9
Current Transducer LF 1005-S
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).
Electrical data
I
PN
Primary nominal current rms 1000 A
I
PM
Primary current, measuring range @ ± 24 V 0 .. ± 1500 A
R
M
Measuring resistance @ T
A
= 70°C T
A
= 85°C
R
M min
R
M max
R
M min
R
M max
with ± 15 V @ ± 1000 A
max
0 18 0 15 Ω
@ ± 1200 A
max
0 7 0 4 Ω
with ± 24 V @ ± 1000 A
max
5 60.5 10 57.5 Ω
@ ± 1500 A
max
5 24 10 21 Ω
I
SN
Secondary nominal current rms 200 mA
K
N
Conversion ratio 1 : 5000
V
C
Supply voltage (± 5 %) ± 15 .. 24 V
I
C
Current consumption (± 1 mA) 28 (@ ± 24 V) + I
S
mA
Accuracy - Dynamic performance data
X Accuracy @ I
PN
, T
A
= 25°C ± 0.4 %
ε
L
Linearity error < 0.1 %
Typ Max
I
O
Offset current @ I
P
= 0, T
A
= 25°C ± 0.4 mA
I
OM
Magnetic offset current @ I
P
= 0 and specified R
M
,
after an overload of 3 x I
PN
± 0.2 mA
I
OT
Temperature variation of I
O
- 10°C .. + 85°C ± 0.3 ± 0.5 mA
- 40°C .. - 10°C ± 0.8 mA
t
r
Response time
1)
to 90 % of I
PN
step < 1 µs
di/dt di/dt accurately followed > 100 A/µs
BW Frequency bandwidth (- 1 dB) DC .. 150 kHz
General data
T
A
Ambient operating temperature - 40 .. + 85 °C
T
S
Ambient storage temperature - 45 .. + 100 °C
R
S
Secondary coil resistance @ T
A
= 70°C 48 Ω
T
A
= 85°C 51 Ω
m Mass 550 g
Standards EN 50178: 1997
Note :
1)
With a di/dt of 100 A/µs.
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Isolated plastic case recognized
according to UL 94-V0.
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 capability.
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
• Industrial.
I
PN
= 1000 A
16110