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LT505-S Datasheet, PDF (1/2 Pages) LEM – Current Transducer LT 505-S | |||
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Current Transducer LT 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).
IPN = 500 A
Electrical data
IPN
Primary nominal r.m.s. current
I
Primary current, measuring range
P
RM Measuring resistance @
500
A
0 .. ± 1200
A
TA = 70°C TA = 85°C
RR RR
M min M max M min M max
with ± 15 V
with ± 24 V
@ ± 500 A
max
@ ± 800 A max
@ ± 500 A
max
@ ± 1200 A max
0 65 0 60 â¦
0 15 0 12 â¦
0 145 15 140 â¦
0 22 15 18 â¦
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
Vb
R.m.s. rated voltage 1), safe separation
basic isolation
100
mA
1 : 5000
± 15 .. 24
V
30 (@ ± 24 V)+ IS mA
6
kV
1750
V
3500
V
Accuracy - Dynamic performance data
X
Overall accuracy @ I , T = 25°C
εG
L
Linearity
PN A
IO
I
OT
tr
di/dt
f
Offset current @ IP = 0, TA = 25°C
Thermal drift of I
O
- 10°C .. + 85°C
Response time 2) @ 90 % of IP max
di/dt accurately followed
Frequency bandwidth (- 1 dB)
± 0.6
%
< 0.1
%
Typ Max
± 0.4 mA
± 0.3 ± 0.5 mA
<1
> 50
DC .. 150
µs
A/µs
kHz
General data
TA
Ambient operating temperature
T
Ambient storage temperature
S
R S Secondary coil resistance @
m
Mass
Standards 3)
- 10 .. + 85
°C
- 25 .. + 100 °C
TA = 70°C 65
â¦
TA = 85°C 69
â¦
400
g
EN 50178
Features
â¢Closed loop (compensated) current
transducer using the Hall effect
â¢Insulated plastic case recognized
according to UL 94-V0.
Advantages
â¢Excellent accuracy
â¢Very good linearity
â¢Low temperature drift
â¢Optimized response time
â¢Wide frequency bandwidth
â¢No insertion losses
â¢High immunity to external
interference
â¢Current overload capability.
Applications
â¢AC variable speed drives and servo
motor drives
â¢Static converters for DC motor drives
â¢Battery supplied applications
â¢Uninterruptible Power Supplies
(UPS)
â¢Switched Mode Power Supplies
(SMPS)
â¢Power supplies for welding
applications.
Notes : 1) Pollution class 2. With a non insulated primary bar which fills the
through-hole
2) With a di/dt of 100 A/µs
3) A list of corresponding tests is available
LEM Components
980708/6
w w w .lem.com
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