LA50-S/SP1 [LEM]
Current Transducer LA 50-S/SP1; 电流传感器LA 50 -S / SP1
| 型号： | LA50-S/SP1 |
| 厂家： | 
LEM |
| 描述： | Current Transducer LA 50-S/SP1 |
| 文件： | 总2页 (文件大小：131K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Current Transducer LA 50-S/SP1
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
A
A
Features
0 .. ± 100
RM min RMmax
· Closed loop (compensated) current
transducer using the Hall effect
· Insulated plastic case recognized
according to UL 94-V0.
with ± 15 V
@ ± 50 Amax
@ ± 100 Amax
0
0
330
100
W
W
ISN
KN
VC
IC
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 min
25
mA
1 : 2000
± 15
10 + IS
3
Special features
V
mA
kV
· IP
= 0 .. ± 100 A
Vd
· KN = 1 : 2000
Advantages
Accuracy - Dynamic performance data
· Excellent accuracy
· Very good linearity
XG
Overall accuracy @ IPN, TA = 25°C
Linearity
± 0.5
< 0.1
%
%
e
L
· Low temperature drift
· Optimized response time
· Wide frequency bandwidth
· No insertion losses
· High immunity to external
interference
Typ Max
IO
IOT
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
± 0.1 mA
- 10°C .. + 70°C
± 0.2 ± 0.4 mA
tr
Response time 1) @ 90 % of IPN
< 1
> 50
DC .. 150
µs
A/µs
kHz
di/dt di/dt accurately followed
f
Frequency bandwidth (- 1 dB)
· Current overload capability.
Applications
General data
· AC variable speed drives and servo
motor drives
· Static converters for DC motor drives
· Battery supplied applications
· Uninterruptible Power Supplies
(UPS)
TA
TS
RS
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @ TA = 70°C
- 10 .. + 70
- 25 .. + 85
130
45
EN 50178
°C
°C
W
g
Mass
Standards
2)
· Switched Mode Power Supplies
(SMPS)
· Power supplies for welding
applications.
1)
Notes : With a di/dt of 50 A/µs
2)
A list of corresponding tests is available.
991014/5
LEM Components
www.lem.com
Dimensions LA 50-S/SP1 (in mm. 1 mm = 0.0394 inch)
Front view
Left view
Secondary terminals
Terminal + : supply voltage + 15 V
Terminal - : supply voltage - 15 V
Terminal M : measure
Terminal 0 : NC
Connection
Top view
Mechanical characteristics
Remarks
· General tolerance
· Fastening
· Primary through-hole
· Connection of secondary
± 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.
· In order to achieve the best magnetic coupling, the primary
windings have to be wound over the top edge of the device.
· To measure nominal currents of less than 50 A, the optimum
accuracy is obtained by having several primary turns (nomi-
nal current x number of turns < 50 At).
2 holes Æ 3.2 mm
12.7 x 6.35 mm
Molex 5045-04/AG
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
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