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參數(shù)資料
| 型號(hào)： | LAH50-P |
| 廠商： | LEM |
| 英文描述： | Current Transducer LAH 50-P |
| 中文描述： | 電流傳感器敦拉50磷 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | LAH50-P |
Current Transducer LAH 50-P
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
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
1)
Measuring resistance @
50
0 .. 110
A
A
T
A
= 70°C
R
M min
R
M max
R
M min
R
M max
0
221
0
115
0
335
0
195
T
A
= 85°C
with ± 12 V
@
I
PN
[± A
DC
]
@
I
PN
[A
]
2)
@
I
PN
[± A
DC
]
@
I
PN
[A
RMS
]
2)
0
0
0
0
214
108
327
188
with ± 15 V
I
SN
K
N
V
C
I
C
V
d
V
e
V
w
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50/60 Hz, 1 mn
R.m.s. voltage for partial discharge extinction @ 10 pC > 2
Impulse withstand voltage 1.2/50 μs
Accuracy - Dynamic performance data
25
1 : 2000
± 12 .. 15
10
(@ ± 15V) +
I
S
mA
5
mA
V
kV
kV
kV
> 12
X
e
L
Accuracy
3)
@
I
PN,
T
A
= 25°C
Linearity
± 0.25
< 0.15
%
%
Typ
Max
± 0.15
I
O
I
OM
I
OT
Offset current @
T
A
= 25°C
Residual current
@
I
P
= 0, after an overload of 5 x
I
PN
Thermal drift of
I
O
mA
mA
mA
mA
± 0.10 ± 0.15
± 0.10 ± 0.30
± 0.10 ± 0.40
0°C .. + 70°C
- 25°C .. + 85°C
t
r a
t
di/dt
f
Reaction time @ 10 % of
I
Response time
4)
@ 90 % of
I
PN
di/dt
accurately followed
Frequency bandwidth (- 1 dB)
General data
< 200
< 500
> 200
DC .. 200
ns
ns
A/μs
kHz
T
A
T
S
R
S
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance
- 25 .. + 85
- 40 .. + 90
135
142
I
22
EN 50178
°C
°C
@
T
A
= 70°C
@
T
A
= 85°C
Insulating material group
Mass
Standards
5)
m
g
Notes :
1)
For 10 s, with
R
M
≤
71
(
V
C
= ± 15 V)
2)
50 Hz Sinusoidal
3)
Without
I
&
I
4)
With a di/dt of 100 A/μs
5)
A list of corresponding tests is available.
Features
Closed loop (compensated) current
transducer using the Hall effect
Printed circuit board mounting
Insulated plastic case recognized
according to UL 94-V0.
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.
I
PN
=
50
A
010822/5
LE M Components
www.lem.com
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