CT5-T_06 [LEM]
Current Transducer; 电流传感器
| 型号： | CT5-T_06 |
| 厂家： | 
LEM |
| 描述： | Current Transducer |
| 文件： | 总3页 (文件大小：185K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Current Transducer CT 5 .. 25-T
IPN = 5 .. 25 A
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).
0632
Electrical data
Primarynominal
current
Primary current,
measuring range
Conversion
ratio
Type
Features
· Closed loop (compensated) current
transducer
IPN (A r.m.s.)
IP (A)
K N (A/V)
5
10
25
7.5
15
37.5
5 A/5 V
10 A/ 5 V
25 A/5 V
CT 5-T
CT 10-T
CT 25-T
· Insulated plastic case recognized
according to UL 94-V0
· Patent pending.
VOUT Analog output voltage
5
V
W
nF
s
RL
CL
tC
VC
IC
Load resistance
> 500
£ 5
Advanced features
Capacitance loading
Output short-circuit duration 1)
Supply voltage (± 5 %)
Current consumption
· f = 500 kHz
· XG = ± 0.1 % (- 25°C .. + 70°C).
¥
± 15
V
30 + VOUT /RL mA
Advantages
· Excellent accuracy
· Very good linearity
Accuracy - Dynamic performance data
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
XG
VO
Overall accuracy @ IPN
Offset voltage @ IP = 0
- 25°C .. + 70°C
± 0.1
%
Max
± 0.4
± 0.6
TA = 25°C
- 25°C .. + 70°C
mV
mV
· Current overload capability.
f
tr
Frequency bandwidth (- 3 dB) @ 10 % of I PN
Response time
DC .. 500
< 1
kHz
µ s
Applications
· AC variable speed drives and servo
motor drives
General data
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
· Switched Mode Power Supplies
(SMPS)
TA
TS
m
Ambient operating temperature
Ambient storage temperature
Mass
- 25 .. + 70
- 40 .. + 85
670
°C
°C
g
Standards
EN 50178 : 1996
· Power supplies for welding
applications.
Applicationdomain
1)
Note :
If the short-circuit has a duration more than 1 s, the primary current of
· Industrial.
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.
Page 1/3
060927/0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Current Transducer CT 5 .. 25-T
Isolation characteristics
Vd
VW
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn
Impulse withstand voltage 1.2/50 µs
6
kV
kV
> 9.5
Min
5)
dCp
dCl
CTI
Creepage distance
Clearance distance
104.5
104.5
225
m m
m m
Comparative Tracking Index (Group III b)
Applicationexamples
According to EN 50178 and IEC 61010-1 standards and following conditions :
· Over voltage category OV 3
· Pollution degree PD2
· Non-uniform field
EN 50178
Rated isolation voltage
1000 V
IEC 61010-1
Nominal voltage
1000 V
dCp, dCI,
VW
Single isolation
Reinforced isolation
600 V
600 V
5)
Note :
Between M5 screws and M5.
Safety
This transducer must be used in electric/electronic equipment with respect to
applicable standards and safety requirements in accordance with the manufacturer's
operating instructions.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can carry hazardous
voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious damage.
This transducer is a built-in device, whose conducting parts must be inaccessible
after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
Page 2/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
060927/0
www.lem.com
Dimensions CT 5 .. 25-T (in mm. 1 mm = 0.0394 inch)
Front view
Left view
Connection
Top view
Mechanical characteristics
Remarks
· General tolerance
· Transducer fastening
± 0.3 mm
· VOUT is positive when IP flows in the direction of the arrow.
· This transducer induces into the primary circuit a square
wave of 70 mV amplitude (frequency » 220 Hz). This voltage
can induce an AC current in the primary if the primary
impedance is low.
· This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
2 holes M5 screws
2 steel screws M5
M5 threaded studs
M5 threaded studs
2.2 Nm or 1.62 Lb - Ft
· Connection of primary
· Connection of secondary
· Fastening torque
Page 3/3
060927/0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
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