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LA55-TP

更新时间： 2024-10-31 22:26:47
品牌 Logo 应用领域
莱姆 - LEM 传感器
页数 文件大小 规格书
2页 69K
描述
Current Transducer LA 55-TP

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LA55-TP 数据手册

 浏览型号LA55-TP的Datasheet PDF文件第2页 
Current Transducer LA 55-TP  
IPN = 50 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 @  
50  
0 .. ± 70  
TA = 70°C  
RM min RMmax RM min RMmax  
A
A
Features  
TA = 85°C  
· Closed loop (compensated) current  
transducer using the Hall effect  
· Printed circuit board mounting  
· Insulated plastic case recognized  
according to UL 94-V0.  
with ± 12 V  
with ± 15 V  
@ ± 50 A max  
10 100 60 95  
W
W
W
W
@ ± 70 A max  
@ ± 50 A max  
@ ± 70 A max  
10  
50  
60 1) 60 1)  
50 160 135 155  
50  
90 135 2)135 2)  
Advantages  
ISN  
KN  
VC  
IC  
Vd  
Vb  
Secondary nominal r.m.s. current  
Conversion ratio  
Supply voltage (± 5 %)  
Current consumption  
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn  
R.m.s. rated voltage  
50  
1 : 1000  
± 12 .. 15  
10(@ ±15V)+IS mA  
2
mA  
· Excellent accuracy  
· Very good linearity  
V
· Low temperature drift  
· Optimized response time  
· Wide frequency bandwidth  
· No insertion losses  
· High immunity to external  
interference  
kV  
V
60  
Accuracy - Dynamic performance data  
X
Accuracy @ IPN , TA = 25°C  
@ ± 15 V (± 5 %)  
± 0.65  
± 0.90  
< 0.15  
%
%
%
@ ± 12 .. 15 V (± 5 %)  
· Current overload capability.  
e
Linearity  
L
Typ  
Max  
Applications  
IO  
IOM  
IOT  
Offset current @ IP = 0, TA = 25°C  
Residual current3) @ IP = 0, after an overload of 3 x IPN  
Thermal drift of IO  
± 0.2 mA  
± 0.3 mA  
· 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.  
0°C .. + 70°C  
- 25°C .. + 85°C  
± 0.1 ± 0.5 mA  
± 0.1 ± 0.6 mA  
tra  
tr  
Reaction time @ 10 % of IP max  
Response time 4) @ 90 % of IP max  
< 500  
< 1  
> 200  
DC .. 200  
ns  
µs  
A/µs  
kHz  
di/dt di/dt accurately followed  
f
Frequency bandwidth (- 1 dB)  
General data  
TA  
TS  
RS  
Ambient operating temperature  
Ambient storage temperature  
Secondary coil resistance @  
- 25 .. + 85  
- 40 .. + 90  
80  
85  
24  
°C  
°C  
W
W
g
TA = 70°C  
TA = 85°C  
m
Mass  
Standards  
5)  
EN 50178  
1)  
Notes : Measuring range limited to ± 60 A  
max  
max  
2)  
Measuring range limited to ± 55 A  
Result of the coercive field of the magnetic circuit  
With a di/dt of 100 A/µs  
3)  
4)  
5)  
980706/4  
A list of corresponding tests is available  
LEM Components  
www.lem.com  
12

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