Current Transducer LT 505-T
IPN = 500 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).
Electrical data
Features
IPN
IP
RM
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
500
0 .. ± 1200
TA = 70°C
RM min RM max RM minRM max
A
A
· Closed loop (compensated) current
transducer using the Hall effect
· Insulated plastic case recognized
according to UL 94-V0.
TA = 85°C
with ± 15 V
with ± 24 V
@ ± 500 Amax
0
0
0
0
65
15
0
0
60
12
W
W
W
W
@ ± 800 Amax
@ ± 500 Amax
@ ± 1200 Amax
145 15 140
22 15 18
100
1 : 5000
± 15 .. 24
30(@± 24 V)+ IS mA
6
1750
3500
Advantages
ISN
KN
VC
IC
Vd
Vb
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
mA
· Excellent accuracy
· Very good linearity
V
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
R.m.s. rated voltage 1), safe separation
basic isolation
kV
V
V
Accuracy - Dynamic performance data
· Current overload capability.
X G
Overall accuracy @ IPN , TA = 25°C
Linearity
± 0.6
< 0.1
%
%
Applications
e
L
Typ
Max
± 0.4 mA
± 0.3 ± 0.5 mA
· AC variable speed drives and servo
motor drives
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
IO
IOT
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
- 10°C .. + 85°C
tr
Response time 2) @ 90 % of IP max
< 1
> 50
DC .. 150
µs
A/µs
kHz
di/dt di/dt accurately followed
f
Frequency bandwidth (- 1 dB)
· Switched Mode Power Supplies
(SMPS)
General data
· Power supplies for welding
applications.
TA
TS
RS
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
- 10 .. + 85
- 25 .. + 100
65
69
850
°C
°C
W
W
g
TA = 70°C
TA = 85°C
m
Mass
3)
Standards
EN 50178
1)
Notes : Pollution class 2. With a non insulated primary bar which fills the
through-hole
2)
With a di/dt of 100 A/µs
A list of corresponding tests is available
3)
980716/2
LEM Components
www.lem.com
Tope Co., Ltd.
Tel: (02) 8228-0658
Fax: (02) 8228-0659
http://www.sensor.com.tw
e-mail: tope@ms1.hinet.net