LF205-P [LEM]
Current Transducer LF 205-P; 电流传感器LF 205 -P
| 型号： | LF205-P |
| 厂家： | 
LEM |
| 描述： | Current Transducer LF 205-P |
| 文件： | 总2页 (文件大小：50K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Current Transducer LF 205-P
IPN = 200 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
IPN
IP
RM
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
200
0 .. ± 420
A
A
Features
TA = 70°C
RM minRM
TA = 85°C
· Closed loop (compensated) current
transducer using the Hall effect
· Insulated plastic case recognized
according to UL 94-V0.
RM minRM
max
max
with ± 12 V
with ± 15 V
@ ± 200 Amax
0
0
0
0
71
14
0
0
69
12
W
W
W
W
@ ± 420 Amax
@ ± 200 Amax
@ ± 420 Amax
100 23 98
28 23 26
Advantages
ISN
KN
VC
IC
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption @ ± 15V
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
100
mA
· Excellent accuracy
· Very good linearity
1 : 2000
± 12 .. 15
17 +IS
3.5
V
mA
kV
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
Vd
Accuracy - Dynamic performance data
XG
Overall accuracy @ IPN , TA = 25°C
Linearity
± 0.5
<0.1
%
%
e
· Current overload capability.
L
Typ
Max
Applications
IO
IOM
IOT
Offset current @ IP = 0, TA = 25°C
Residual current1) @ IP = 0, after an overload of 3 x IPN
Thermal drift of IO
± 0.2 mA
± 0.1 mA
· AC variable speed drives and servo
motor drives
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
- 40°C .. + 85°C
± 0.12 ± 0.4 mA
tra
tr
Reaction time @ 10 % of IP max
Response time2) @ 90 % of IP max
< 500
< 1
ns
µs
di/dt di/dt accurately followed
f
> 100
DC .. 100
A/µs
kHz
Frequency bandwidth (- 3 dB)
· Switched Mode Power Supplies
(SMPS)
General data
TA
TS
RS
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ TA = 70°C
- 40 .. + 85
- 40 .. + 90
33
35
58
°C
°C
W
W
g
· Power supplies for welding
applications.
@ TA = 85°C
m
Mass
Standards 3)
EN 50178
1)
Notes : The result of the coercive field of the magnetic circuit
2)
With a di/dt of 100 A/µs
A list of corresponding tests is available.
3)
011120/2
LEM Components
w w w.lem.com
Dimensions LF 205-P (in mm. 1 mm = 0.0394 inch)
Bottom view
Secondary terminals
Terminal + : supply voltage + 12 .. 15 V
Terminal M : measure
Terminal - : supply voltage - 12 .. 15 V
Left view
Back view
Front view
Connection
Top view
Mechanical characteristics
Remarks
· General tolerance
· Fastening & secondary connection 3 pins 0.63x0.56 mm
± 0.2 mm
· IS is positive when IP flows in the direction of the arrow.
· Temperature of the primary conductor should not exceed
100°C.
· Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
· This is a standard model. For different versions (supply
voltages, turns ratios, unidirectional measurements...),
please contact us.
Recommanded PCB hole
· Primary through-hole
· Supplementary fastening
Recommended PCB hole
Recommended screws
LEM code
Æ 0.9 mm
Æ 15.5 mm
2 holes Æ 1.75 mm
2.4 mm
KA22 x 6
47.30.60.006.0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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