LA150-P Datasheet, PDF (1/2 Pages) LEM – Current Transducer LA 150-P

Current Transducer LA 150-P
I_PN = 150 A
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
Preliminary
Electrical data
I_PN
Primary nominal current
150
A
I_P
Primary current, measuring range
0 .. ± 200 A
R_M
Measuring resistance
T_A = 70°C T_A = 85°C
R_{M min} R_{M max} R_{M min} R_{M max}
with ±15V @± 200 A _max
0 30
0 15 Ω
I_SN
Secondary nominal current
75
mA
K_N
Conversion ratio
1 : 2000
V_C
Supply voltage (± 5 %)
± 15
V
I_C
Current consumption
app 16 + I_SN
mA
V_d
R.m.s. voltage for AC isolation test, 50/60Hz,1mn 2.5
kV
Accuracy-Dynamic performance data
X
ε_L
I_O
I_om
I_OT
t_r
di/dt
f
Accuracy @ I_PN, T_A = 25°C @± 15V (± 5 %)
< ± 1 % of I_PN
Linearity (0 .. ± I_PN)
± 0.25 % of I_PN
Electrical offset current @I_P = 0, @T_A = 25°C Max. ± 0.2
mA
Residual current @ I_P = 0,
after an excursion at 1x I_PN
Max.± 0.15
mA
Thermal drift of I_O
± 0.005 mA/K
Response time @ 90% of I_P
<1
µs
di/dt accurately followed
> 200 A/µs
Frequency bandwidth (- 1dB)¹⁾
DC .. 150 kHz
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R_S
Secondary coil resistance
m
Mass
- 10 .. + 80 °C
- 15 .. + 85 °C
80
Ω
25
g
Notes : EN 50178 approval pending
1) _{Derating is needed to avoid excessive core heating at high frequency.}
Features
• Closed loop (compensation) current
transducer using the Hall effect
• Printed circuit board mounting
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 capacity
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
010118/2
LEM Components
www.lem.com