IPN
Current Transducer LF 1005-S/SP27
=
1000 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).
16101
Electrical data
IPN
IP
RM
Features
Primary nominal r.m.s. current
Primary current, measuring range
Measuring resistance
with ± 15 V
ISN
KN
VC
IC
1000
0 .. ± 1500
R M min
R M max
@ ± 1000 A max
@ ± 1500 A max
Secondary nominal r.m.s. current
Conversion ratio
Supply voltage (± 5 %)
Current consumption
0
0
21
4.5
250
1 : 4000
± 15
20 + IS
A
A
Ω
Ω
mA
V
mA
Accuracy - Dynamic performance data
XG
Overall accuracy @ IPN , TA = 25°C
Linearity error
± 0.6
< 0.1
IO
IOT
Offset current @ IP = 0, TA = 25°C
Thermal drift of IO
Max
± 0.5
± 0.6
tr
di/dt
f
Response time 1) @ 90 % of IPN
di/dt accurately followed
Frequency bandwidth (- 1 dB)
ε
L
- 25°C .. +85°C
<1
> 100
DC .. 150
%
%
mA
mA
µs
A/µs
kHz
General data
TA
TS
RS
m
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance
Mass
Standards
@ TA = 85°C
- 25 .. + 85
°C
- 40 .. + 85
°C
30
Ω
570
g
EN 50178 : 1997
• Closed loop (compensated) current
transducer using the Hall effect
• Insulated plastic case recognized
according to UL 94-V0.
Special features
•
•
•
•
IP = 0 .. ± 1500 A
ISN = 250 mA
TA = - 25°C .. + 85°C
Connection to secondary circuit on
Phoenix/Entrelec connector.
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.
Note :
1)
With a di/dt of 100 A/µs.
Application Domain
• Industrial.
060425/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM
Page 1/3
w w w .lem.com
Current Transducer LF 1005-S/SP27
Isolation characteristics
Vd
Vw
R.m.s. voltage for AC isolation test, 50 Hz, 1 mn
Impulse withstand voltage 1.2/50 µs
3
14
dCp
dCl
CTI
Creepage distance
Clearance distance
Comparative Tracking Index (Group III a)
Min
20.35
16.55
175
kV
kV
mm
mm
Application examples
According to EN 50178 and CEI 61010-1 standards and following conditions :
• Over voltage category OV 3
• Pollution degree PD2
• Non-uniform field
EN 50178
IEC 61010-1
Rated isolation voltage
Nominal voltage
Single isolation
2000 V
Cat IIIa 2000 V rms
Reinforced isolation
1000 V
Cat IIIa 1000 V rms
dCp, dCI, V W
Safety
This transducer must be used in electric/electronic equipment with respect to
applicable standards and safety requirements in accordance with the following
manufacturer's operating instructions.
Caution, risk of electrical shock
When operating the transducer, certain parts of the module can carry hazardous
voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious damage.
This transducer is a built-in device, whose conducting parts must be inaccessible
after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
060425/3
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM
Page 2/3
w w w .lem.com
Dimensions LF 1005-S/SP27
(in mm. 1 mm = 0.0394 inch)
Connection
Bottom view
Right view
Top view
Back view
Mechanical characteristics
Remarks
• General tolerance
• Transducer fastening
• IS is positive when IP flows in the direction of the arrow.
• Temperature of the primary conductor should not exceed
± 0.5 mm
2 holes ∅ 5.3 mm
2 M5 steel screws
Recommended fastening torque 4 Nm or 2.52 Lb. - Ft.
or
4 holes ∅ 4.2 mm
4 M4 steel screws
Recommended fastening torque 3.2 Nm or 2.02 Lb. - Ft.
or
4 holes ∅ 2.25 mm depth10 mm
4 x PT KA30 screws long 10 mm
Recommended fastening torque 0.9 Nm or 0.57 Lb. - Ft.
• Transducer fastening
Horizontal position
4 holes ∅ 5.3 mm
4 M5 steel screws
Recommended fastening torque 4 Nm or 2.52 Lb. - Ft.
or
4 holes ∅ 2.25 mm depth16 mm
4 x PT KA30 screws long 16 mm
Recommended fastening torque 1 Nm or 0.63 Lb. - Ft.
• Primary through-hole
40.5 x 13 mm or ∅ 38 mm
• Connection of secondary
Phoenix/Entrelec compatible
Vertical position
100°C.
• Dynamic performances (di/dt and response time) are best
with a single bar completely filling the primary hole.
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without previous notice.
LEM
060425/3
Page 3/3
w w w .lem.com