Current Transducer CT 100-S
For very accurate measurements of currents : DC, AC, pulsed...,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
I
PN
=
100 A
Provisional
Electrical data
I
P N
I
P
V
O U T
K
N
R
L
C
L
t
C
V
C
I
C
V
d
Primary nominal r.m.s. current
Primary current, measuring range
Analog output voltage
Conversion ratio
Load resistance
Capacitance loading
Output short-circuit duration
1)
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
0 .. ± 150
5
100 A / 5 V
>
500
≤
5
A
A
V
Ω
nF
s
V
mA
kV
Features
•
Closed loop (compensated) current
transducer
•
Insulated plastic case recognized
according to UL 94-V0
•
Patent pending.
∞
± 15
90 +
V
OUT
/
R
L
6
Advanced features
•
f
= 250 kHz
•
X
G
= ± 0.15 % (- 25°C .. + 70°C).
Accuracy - Dynamic performance data
X
G
V
O
t
r
di/dt
f
Overall accuracy @
I
PN
Offset voltage @
I
P
= 0
- 25°C .. + 70°C
T
A
= 25°C
- 25°C .. + 70°C
± 0.15
Typ
Max
± 0.4
± 0.6
%
mV
mV
ns
A/µs
kHz
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.
Response time
2)
@ 90 % de
I
PN
di/dt accurately followed
Frequency bandwidth (- 3 dB) @ 10 % of
I
PN
400
60
DC .. 250
General data
T
A
T
S
m
Ambient operating temperature
Ambient storage temperature
Mass
Standards
- 25 .. + 70
°C
- 40 .. + 85
°C
670
g
EN 50178 : 1997
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)
2)
If the short-circuit has a duration more than 1 s, the primary current of
the supply voltage must be interrupted for a short time to restore the
transducer to proper working order. The internal protection is done by
PTC resistors
With a di/dt of 60 A/µs.
060808/5
LEM
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