LF505-S(2001) 데이터 시트보기 (PDF) - LEM Industrial
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LF505-S Datasheet PDF : 2 Pages
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Current Transducer LF 505-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).
Preliminary
IPN = 500 A
Electrical data
IPN
Primary nominal r.m.s. current
IP
Primary current, measuring range
RM Measuring resistance
with ± 15 V
with ± 18 V
with ± 24 V
@ ± 500 A max
@ ± 800 A max
@ ± 500 A max
@ ± 800 A max
@ ± 500 A max
@ ± 800 A max
ISN
Secondary nominal r.m.s. current
K N Conversion ratio
VC
Supply voltage (± 5 %)
IC
Current consumption
Vd
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Accuracy - Dynamic performance data
εX G
L
Overall accuracy @ IPN , TA = 25°C
Linearity
IO
IOT
tr
di/dt
f
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
- 10°C .. + 70°C
Response time 1) @ 90 % of IPN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
General data
TA
Ambient operating temperature
TS
Ambient storage temperature
R S Secondary coil resistance @
m
Mass
Standards 2)
TA = 70°C
500
A
0 .. ± 800
A
RM min
0
0
0
0
5
5
RM max
60
Ω
11
Ω
92
Ω
30
Ω
149 Ω
65
Ω
100
mA
1 : 5000
± 15 .. 24
V
24 (@ ± 18 V)+ IS mA
3
kV
± 0.6
%
< 0.1
%
Typ Max
± 0.4 mA
± 0.3 ± 0.5 mA
<1
> 100
DC .. 100
µs
A/µ s
kHz
- 10 .. + 70
°C
- 25 .. + 85
°C
70
Ω
230
g
EN 50155
EN 50178
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Insulated 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.
Notes : 1) With a di/dt of 100 A/µs
2) A list of corresponding tests is available
010327/4
LEM Components
w w w .lem.com
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