LB200-S Datasheet, PDF (1/2 Pages) LEM – Current Transducer LB 200-S/SP4

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).
I_PN = 200 A
Electrical data
I_PN
Primary nominal r.m.s. current
I_P
Primary current, measuring range
R_M Measuring resistance
with ± 15 V
@ ± 200 A _max
@ ± 300 A _max
I_SN
Secondary nominal r.m.s. current
K _N Conversion ratio
V_C
Supply voltage (± 5 %)
I_C
Current consumption
V_d
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Accuracy - Dynamic performance data
εX G
L
Overall accuracy @ I_PN, T_A = 25°C
Linearity
I_O
I_OT
t_r
di/dt
f
Offset current @ I_P = 0, T_A = 25°C
Thermal drift of I_O
+ 20°C .. + 50°C
Response time ³⁾ @ 90 % of I_PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
Output noise
Magnetization after excursion @ ± I_PN
Crossing distortion
Matching specification
+ 20°C .. + 50°C
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R _S Secondary coil resistance @ T_A = 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 + I_S
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
• V_C = ± 15 V (± 5 %)
• K _N = 1 : 1000
• Shield
• Negligeable zero crossing distortion
• Low noise electronics
• T_A = + 20°C .. + 50°C
• Low I_OT
• Transducers matched based on
thermal drift to within T_A ≤ 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