Current Transducer LF 2005-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).
I
PN
=
2000 A
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range @ ± 24 V
Measuring resistance
with ± 15 V
with ± 24 V
I
SN
K
N
V
C
I
C
V
d
@ ± 2000 A
max
@ ± 2200 A
max
@ ± 2000 A
max
@ ± 3000 A
max
2000
0 .. ± 3000
R
M min
R
M max
0
0
5
5
8
5
29
11
A
A
Ω
Ω
Ω
Ω
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
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
400
mA
1 : 5000
± 15 .. 24
V
33
(@ ± 24 V) +
I
S
mA
6
kV
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.
Accuracy - Dynamic performance data
X
G
ε
L
Overall accuracy @
I
PN
,
T
A
= 25°C
Linearity
Offset current @
I
P
= 0,
T
A
= 25°C
Thermal drift of
I
O
- 25°C .. + 70°C
Response time @ 90 % of
I
PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
1)
± 0.3
< 0.1
Typ
Max
± 0.5
± 0.4
%
%
mA
mA
µs
A/µs
kHz
I
O
I
OT
t
r
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)
Power supplies for welding
applications.
± 0.2
<1
> 50
DC .. 100
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
T
A
= 70°C
Mass
Standards
2)
- 25 .. + 70
- 40 .. + 85
25
1.5
EN 50178
°C
°C
Ω
kg
•
Notes :
1)
2)
With a di/dt of 100 A/µs
A list of corresponding tests is available.
020708/5
LEM Components
www .lem.com
Dimensions LF 2005-S
Front view
(in mm. 1 mm = 0.0394 inch)
Left view
Secondary terminals
Pin
Pin
Pin
+
M
-
: supply voltage + 15 .. 24 V
: measure
: supply voltage - 15 .. 24 V
Connection
Top view
Mechanical characteristics
•
General tolerance
•
Fastening transducer
Flat or vertical position
Fastening torque
•
Primary through-hole
•
Connection of secondary
± 0.5 mm
4 holes
∅
6.5 mm
4 screw M6 steel
5.5 Nm or 4.05 Lb. - Ft.
60.5 x 60.5 mm
S3P-VH
Remarks
•
I
S
is positive when
I
P
flows in the direction of the arrow.
•
Temperature of the primary conductor should not exceed
100°C.
•
Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
•
This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
Microchip MCU
京公网安备 11010802033920号
EEWORLD
