LTC 600-S Przetwornik prądowy | LEM - DACPOL : SKLEP

IPN
Current Transducer LA 255-S
=
250 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).
16112
Electrical data
IPN
IP
ÎP max
RM
Primary nominal r.m.s. current
Primary current, measuring range
Measuring overload 1)
Measuring resistance @
with ± 12 V
with ± 15 V
with ± 18 V
ISN
KN
VC
IC
Vb
250
0 .. ± 500
600
TA = 70°C
TA = 85°C
RM min RM max RM min RM max
@ ± 250 A max
@ ± 500 A max
@ ± 250 A max
@ ± 500 A max
@ ± 250 A max
@ ± 500 A max
0
0
5
5
25
25
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
R.m.s. rated voltage 2), safe separation
basic isolation
49
7
70
17
93
29
0
0
5
5
25
25
47
5
68
15
91
27
A
A
A
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Insulated plastic case recognized
Ω
Ω
Ω
Ω
Ω
Ω
125
mA
1 : 2000
± 12 .. 18
V
20 (@ ± 15 V) + IS mA
1625
V
3250
V
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.
Accuracy - Dynamic performance data
XG
ε
Overall accuracy @ IPN , TA = 25°C
Linearity error
L
± 0.8
< 0.1
IO
IO M
IOT
Offset current @ IP = 0, TA = 25°C
Residual current 3) @ IP = 0, after an overload of 3 x IPN
Thermal drift of IO
- 10°C .. + 85°C
Max
± 0.15
± 0.50
± 0.15 ± 0.30
tra
tr
di/dt
f
Reaction time @ 10 % of IP max
Response time 4) @ 90 % of IP max
di/dt accurately followed
Frequency bandwidth (- 3 dB)
< 500
<1
> 100
DC .. 100
%
%
Typ
mA
mA
mA
ns
µs
A/µs
kHz
General data
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance @
m
Mass
Standards
Notes :
1)
2)
3)
4)
5)
• 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.
TA
TS
RS
5)
Applications
TA = 70°C
TA = 85°C
- 10 .. + 85
- 40 .. + 90
35
37
110
EN 50178
°C
°C
Ω
Ω
g
3 mn/hour @ VC = ± 15 V, R M = 5 Ω
Pollution class 2. With a non insulated primary bar which fills the
through-hole
The result of the coercive field of the magnetic circuit
With a di/dt of 100 A/µs
A list of corresponding tests is available
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM
060427/4
Page 1/2
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Dimensions LA 255-S
(in mm. 1 mm = 0.0394 inch)
Front view
Left view
Secondary terminals
Terminal + : supply voltage + 12 .. 18 V
Terminal M : measure
Terminal - : supply voltage - 12 .. 18 V
Connection
Top view
Mechanical characteristics
•
•
•
•
General tolerance
Fastening
Primary through-hole
Connection of secondary
Remarks
± 0.5 mm
2 holes ∅ 5.5 mm
23 x 18 mm
Faston 6.3 x 0.8 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.
060427/4
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM
Page 2/2
w w w .lem.com