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LB200-S Datasheet PDF : 2 Pages
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Current Transducer LB 200-S/SP4
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).
IPN = 200 A
Electrical data
IPN
Primary nominal r.m.s. current
IP
Primary current, measuring range
RM Measuring resistance
with ± 15 V
@ ± 200 A max
@ ± 300 A max
ISN
Secondary nominal r.m.s. current
K N Conversion ratio
VC
Supply voltage (± 5 %)
IC
Current consumption
Vd
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Accuracy - Dynamic performance data
εX G
L
Overall accuracy @ IPN, TA = 25°C
Linearity
IO
IOT
tr
di/dt
f
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
+ 20°C .. + 50°C
Response time 3) @ 90 % of IPN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
Output noise
Magnetization after excursion @ ± IPN
Crossing distortion
Matching specification
+ 20°C .. + 50°C
General data
TA
Ambient operating temperature
TS
Ambient storage temperature
R S Secondary coil resistance @ TA = 50°C
m
Mass
Standards 4)
200
A
0 .. ± 300
A
R R M min
M max
5
33
Ω
5
15
Ω
200
mA
1 : 1000
± 15
V
20 + IS
mA
6 1)
kV
1 2)
kV
± 0.5
%
< 0.1
%
Typ Max
± 0.50 mA
± 0.08 mA
<1
> 50
DC .. 150
< 0.002
< 0.01
negligeable
≤ 0.01
µs
A/µ s
kHz
mA
mA
mA
+ 20 .. + 50
°C
- 25 .. + 85
°C
30
Ω
200
g
EN 50178
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Insulated plastic case recognized
according to UL 94-V0.
Special features
• VC = ± 15 V (± 5 %)
• K N = 1 : 1000
• Shield
• Negligeable zero crossing distortion
• Low noise electronics
• TA = + 20°C .. + 50°C
• Low IOT
• Transducers matched based on
thermal drift to within TA ≤ 0.01 mA.
Advantages
• Better frequency response
• 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.
Notes : 1) Between primary and secondary + shield.
2) Between secondary and shield.
3) With a di/dt of 100 A/µs
4) A list of corresponding tests is available.
990716/7
LEM Components
www.lem.com
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