Com-Power LI-1100 User Manual
Features
LINE
NEUTRAL
LINE
NEUTRAL
EQUIPMENT
UNDER
TEST
POWER
SOURCE
EARTH GROUND
LISN
LISN
GROUND
GROUND
GROUND
GROUND
LINE 3
NEUTRAL
LINE 3
NEUTRAL
EQUIPMENT
UNDER
TEST
POWER
SOURCE
EARTH GROUND
LISN
LISN
GROUND
GROUND
GROUND
GROUND
LINE 1
LINE 2
LINE 1
LINE 2
LISN
LISN
GROUND
GROUND
GROUND
GROUND
Frequency range of 150 kHz to 30 MHz
Line Impedance Stabilization Network
LI-1100
100 Amp
(forced air cooling)
(AC)
Fully compliant with CISPR 16-1-2 / ANSI C63.4
“Air-core” inductors to prevent saturation
Individual Calibration Included
Three-Year Warranty
Description
The LI-1100 Line Impedance Stabilization Network
(LISN) provides the necessary measurement
platform for performing power line conducted
emissions compliance testing as required by most
worldwide standards for commercial products.
The LI-1100 is compliant with both CISPR 16-1-2 and
ANSI C63.4.
The LISN provides dened stable impedance and
isolates the EUT from power source inuences,
thereby providing accurate and repeatable results.
Use of a Transient Limiter for impedance matching,
reduction of out-of-band emissions and transient
protection for your measurement instrument is
highly recommended and available from ComPower.
All Com-Power LISNs are individually calibrated
in compliance with the relevant requirements of
CISPR 16-1-2 and ANSI C63.4. Impedance, Phase,
Isolation, and Insertion Loss data is supplied with
each unit, along with the calibration certicate.
Typical Connection Diagrams
The LI-1100 includes one pair of, separately housed,
Single Phase connection with one set of LISN
single-conductor networks, to be installed in series
with each current-carrying conductor in a single-
phase, dual-phase or DC power system. A second
LI-1100 pair can be used to accommodate 3-phase
power systems (Wye or Delta congurations).
The LI-1100 is equipped with Superior Electric
SUPERCON® shrouded sockets at the mains
(power input) and EUT (power output) ports. The
Three Phase connection with two sets of LISNs
matching color-coded plugs for connection to the
mains and EUT wiring are included.
This LISN uses air-core inductors to prevent
saturation and permeability variation. The
mounting plate of the LI-1100 is left unpainted in
order to facilitate connection to earth ground in its
installation, which is essential due to high leakage
current.
Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Rev. D04.14
Line Impedance Stabilization Network
LI-1100
Application
Product Name Line Impedance Stabilization Network (LISN)
Specication CISPR 16-1-2 / ANSI C63.4
Application
Frequency Range
RF Connector
Current Rating
Voltage Rating
Inductors
Mains & EUT Connections
Dimensions (each network)
Weight (each network)
Insertion Loss
Isolation
All specications are subject to change without notice.
All values are typical, unless specied.
70
60
50
40
Impedance (ohm)
30
20
0.1 1 10 100
Power line conducted emissions tests
150 kHz to 30 MHz
50Ω N-type (female)
100 Amperes
, 70 Amperes
(AC)
(DC)
440 VAC (Line to Ground), 620 VDC
50 µH (air-core)
Superior Electric SUPERCON® shrouded sockets
10 x 10 x 21 inches /25.4 x 25.4 x 53.3 cm
17 lbs. / 7.7 kg
< 0.5 dB (150 kHz to 30 MHz)
> 40 dB (150 kHz to 30 MHz)
LISN Model No. LI-1100
CISPR 16-1-2, Ed.1.2, Tbl 4
(50uH) Impedance Limits
(±20%)
ANSI C63.4-2009, Tbl B.2
(50uH) Impedance Limits
(±20%)
ANSI C63.4-2003, Fig.1
(50uH) Impedance Limits
(±20%)
Frequency (MHz)
70
60
50
40
30
20
10
Phase Angle (degree)
0
-10
-20
0.1 1 10 100
Com-Power Corporation 19121 El Toro Rd., Silverado, California 92676 (949) 459 - 9600 www.com-power.com
Frequency (MHz)
LISN Model No. LI-1100
CISPR 16-1-2, Ed.1.2, Tbl 4
(50uH) Phase Limits
(±11.5°)
Rev. D04.14
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