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PDF CT25-T Data sheet ( Hoja de datos )
| Número de pieza | CT25-T | |
| Descripción | Current Transducers CT 25-T | |
| Fabricantes | LEM | |
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Current Transducer CT 5 .. 25-T
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).
IPN = 5 .. 25 A
Electrical data
0632
Primary nominal
current
IPN (A r.m.s.)
Primary current,
measuring range
IP (A)
5 7.5
10 15
25 37.5
V
OUT
RL
C
L
tC
V
C
IC
Analog output voltage
Load resistance
Capacitance loading
Output short-circuit duration 1)
Supply voltage (± 5 %)
Current consumption
Conversion
ratio
K N (A/V)
5 A/5 V
10 A/ 5 V
25 A/5 V
Accuracy - Dynamic performance data
X Overall accuracy @ I
G PN
- 25°C .. + 70°C
VO Offset voltage @ I P = 0
TA = 25°C
- 25°C .. + 70°C
f Frequency bandwidth (- 3 dB) @ 10 % of I
PN
tr Response time
General data
TA Ambient operating temperature
T Ambient storage temperature
S
m Mass
Standards
Type
CT 5-T
CT 10-T
CT 25-T
5
> 500
≤5
∞
± 15
30 + VOUT / RL
V
Ω
nF
s
V
mA
± 0.1
Max
± 0.4
± 0.6
DC .. 500
<1
%
mV
mV
kHz
µs
- 25 .. + 70
°C
- 40 .. + 85
°C
670 g
EN 50178 : 1996
Features
• Closed loop (compensated) current
transducer
• Insulated plastic case recognized
according to UL 94-V0
• Patent pending.
Advanced features
• f = 500 kHz
• X G = ± 0.1 % (- 25°C .. + 70°C).
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.
Note :
1) 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.
Application domain
• Industrial.
060927/0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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| PDF Descargar | [ Datasheet CT25-T.PDF ] | |
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