LT505-T Datasheet, PDF (1/2 Pages) LEM – DC, AC, poulsed.. with a galvanic isolation between the primary circuit (high power) and the secondary circuit (electronic circuit)

Current Transducer LT 505-T
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 = 500 A
Electrical data
I_PN
Primary nominal r.m.s. current
I
Primary current, measuring range
P
R_M Measuring resistance @
500
A
0 .. ± 1200
A
T_A = 70°C T_A = 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 Ω
0 15 0 12 Ω
0 145 15 140 Ω
0 22 15 18 Ω
I_SN
Secondary nominal r.m.s. current
K _N Conversion ratio
V_C Supply voltage (± 5 %)
I_C
Current consumption
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
V_b
R.m.s. rated voltage ¹⁾, safe separation
basic isolation
100
mA
1 : 5000
± 15 .. 24
V
30 (@ ± 24 V) + I_S mA
6
kV
1750
V
3500
V
Accuracy - Dynamic performance data
X
Overall accuracy @ I , T = 25°C
εG
L
Linearity
PN A
I_O
I
OT
t_r
di/dt
f
Offset current @ I_P = 0, T_A = 25°C
Thermal drift of I
O
Response time ²⁾ @ 90 % of I_{P max}
di/dt accurately followed
Frequency bandwidth (- 1 dB)
- 10°C .. + 85°C
± 0.6
%
< 0.1
%
Typ Max
± 0.4 mA
± 0.3 ± 0.5 mA
<1
> 50
DC .. 150
µs
A/µs
kHz
General data
T_A
Ambient operating temperature
T
Ambient storage temperature
S
R _S Secondary coil resistance @
m
Mass
Standards ³⁾
- 10 .. + 85
°C
- 25 .. + 100 °C
T_A = 70°C 65
Ω
T_A = 85°C 69
Ω
850
g
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⁾ 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}
980716/2
LEM Components
Tope Co., Ltd. Tel: [phone]
Fax: [phone]
http://www.sensor.com.tw
w w w .lem.com
e-mail: [e-mail]