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Current Transducer LF 306-S
I PN
=
300 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).
16130
Electrical data
Features
I PN
I P
Primary nominal r.m.s. current
Primary current, measuring range
300
0 .. ± 500
A
A
? Closed loop (compensated) current
R M
Measuring resistance
with ± 12 V
with ± 15 V
@ ± 300 A max
@ ± 500 A max
@ ± 300 A max
@ ± 500 A max
R M min
0
0
10
10
R M max
37
8
56
20
?
?
?
?
transducer using the Hall effect
? Insulated plastic case recognized
according to UL 94-V0.
Advantages
I SN
K N
V C
I C
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
Accuracy - Dynamic performance data
150 mA
1 : 2000
± 12 .. 15 V
20 (@ ± 15 V) + I S mA
?
?
?
?
?
?
?
Excellent accuracy
Very good linearity
Low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
ε
X G
L
Overall accuracy @ I PN , T A = 25°C
Linearity error
± 0.4
< 0.1
%
%
interference
? Current overload capability.
Typ
Max
I O
Offset current @ I P = 0, T A = 25°C
± 0.20
mA
Applications
I OT Thermal drift of I O
I OM Residual current 1) @ I P = 0, after an overload of 3 x I PN
- 25°C .. + 70°C
t ra Reaction time @ 10 % of I P max
t r Response time 2) @ 90 % of I PN
di/dt di/dt accurately followed
f Frequency bandwidth (- 1 dB)
General data
± 0.08
± 0.20 ± 0.64
< 500
<1
> 100
DC .. 100
mA
mA
ns
μs
A/μs
kHz
? 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
T A
T S
R S
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ T A = 70°C
- 25 .. + 70
- 40 .. + 90
34
°C
°C
?
applications.
Application Domain
m
Mass
Standards
60
EN 50178 : 1997
g
? Industrial.
Notes :
1)
2)
The result of the coercive field of the magnetic circuit
With a di/dt of 100 A/μs.
070424/9
LEM
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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