LTC1000-SFC Datasheet, PDF (1/2 Pages) LEM – Current Transducer

Current Transducer LTC 1000-SFC
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 = 1000 A
Electrical data
I_PN
Primary nominal r.m.s. current
I_P
Primary current, measuring range @ 24 V
Î_P
Max overload not measurable
R_M Measuring resistance
with ± 15 V
with ± 24 V
@ ± 1000 A _max
@ ± 1200 A _max
@ ± 1000 A _max
@ ± 2000 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
V_e
R.m.s. voltage for partial discharge extinction
Accuracy - Dynamic performance data
X _G Overall accuracy @ I_PN , T_A = 25°C
ε_L
Linearity
@ I_PN , T_A = - 40°C .. + 85°C
I_O
I_OT
t_r
di/dt
f
Offset current @ I_P = 0, T_A = 25°C
Thermal drift of I_O
Response time ⁵⁾ @ 90 % of I_PN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
- 40°C .. + 85°C
General data
T_A
Ambient operating temperature
T_S
Ambient storage temperature
R
Secondary coil resistance @ T = 85°C
S
A
m Mass
Standards
1000
A
0 .. ± 2400 ¹⁾
A
10 / 10 kA/ms
R R _{M min}
M max
0
15
Ω
0
7
Ω
0
50
Ω
0
7
Ω
200
mA
1 : 5000
± 15 .. 24
V
< 30(@±24V)+I_S m A
13.4 ²⁾
kV
1.5 ³⁾
kV
> 2.8 ⁴⁾
kV
< ± 0.4
<±1
< 0.1
Max
± 0.5
±1
<1
> 100
DC .. 100
%
%
%
mA
mA
µs
A/µ s
kHz
- 40 .. + 85
°C
- 45 .. + 90
°C
44
Ω
800
g
EN 50155 (01.12.20)
Features
• Closed loop (compensated) current
transducer using the Hall effect
• Insulated plastic case recognized
according to UL 94-V0
• Transducer delivered with feet and
clamps
• Railway equipment.
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.
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⁾ With a di/dt of > 5 A/µs
2) _{Between primary and secondary + shield}
3) _{Between secondary and shield}
4) _{Test carried out with a busbar ∅ 40 mm centred in the through-hole}
5) _{With a di/dt of 100 A/µs.}
030528/0
LEM Components
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