Current Transducer LA 55-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).
I
PN
=
50 A
Electrical data
I
PN
I
P
R
M
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance @
with 鹵 12 V
with 鹵 15 V
I
SN
K
N
V
C
I
C
V
d
@ 鹵 50 A
max
@ 鹵 70 A
max
@ 鹵 50 A
max
@ 鹵 70 A
max
50
0 .. 鹵 70
T
A
= 70擄C
T
A
= 85擄C
R
M min
R
M max
R
M min
R
M max
10
10
50
50
100
50
160
90
60 95
60
1)
60
1)
135 155
135
2)
135
2)
A
A
Features
鈥?/div>
Closed loop (compensated) current
transducer using the Hall effect
鈥?/div>
Printed circuit board mounting
鈥?/div>
Insulated plastic case recognized
according to UL 94-V0.
鈩?/div>
鈩?/div>
鈩?/div>
鈩?/div>
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (鹵 5 %)
Current consumption
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
50
mA
1 : 1000
鹵 12 .. 15
V
10
(@ 鹵 15 V) +
I
S
mA
2.5
kV
Advantages
鈥?/div>
Excellent accuracy
鈥?/div>
Very good linearity
鈥?/div>
Low temperature drift
鈥?/div>
Optimized response time
鈥?/div>
Wide frequency bandwidth
鈥?/div>
No insertion losses
鈥?/div>
High immunity to external
interference
鈥?/div>
Current overload capability.
Accuracy - Dynamic performance data
X
Accuracy @
I
PN
,
T
A
= 25擄C
L
蔚
@ 鹵 15 V (鹵 5 %)
@ 鹵 12 .. 15 V (鹵 5 %)
Linearity
Offset current @
I
P
= 0,
T
A
= 25擄C
Residual current
3)
@
I
P
= 0, after an overload of 3 x
I
PN
Thermal drift of
I
O
0擄C .. + 70擄C
- 25擄C .. + 85擄C
Reaction time @ 10 % of
I
P max
Response time @ 90 % of
I
P max
di/dt accurately followed
Frequency bandwidth (- 1 dB)
鹵 0.65
鹵 0.90
< 0.15
Typ
Max
鹵 0.2
鹵 0.3
鹵 0.5
鹵 0.6
%
%
%
mA
mA
mA
mA
ns
碌s
A/碌s
kHz
I
O
I
OM
I
OT
t
ra
t
r
di/dt
f
Applications
鈥?/div>
AC variable speed drives and servo
motor drives
鈥?/div>
Static converters for DC motor drives
鈥?/div>
Battery supplied applications
鈥?/div>
Uninterruptible Power Supplies
(UPS)
鈥?/div>
Switched Mode Power Supplies
(SMPS)
鈥?/div>
Power supplies for welding
applications.
鹵 0.1
鹵 0.1
< 500
<1
> 200
DC .. 200
General data
T
A
T
S
R
S
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
Mass
Standards
- 25 .. + 85
- 40 .. + 90
80
85
18
EN 50178
擄C
擄C
鈩?/div>
鈩?/div>
g
T
A
= 70擄C
T
A
= 85擄C
4)
Notes :
1)
2)
3)
4)
Measuring range limited to 鹵 60 A
max
Measuring range limited to 鹵 55 A
max
Result of the coercive field of the magnetic circuit
A list of corresponding tests is available
980706/8
LEM Components
w w w .lem.com
LA55P相關(guān)型號PDF文件下載
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