Transcript
Line Impedance Stabilization Network LI-215A
Features • Frequency Range: 9 kHz to 30 MHz • Fully Compliant with CISPR 16-1-2/ANSI C63.4 • Dual-Conductor Network with NEMA 5-15R Receptacle • 15 Amps Current Handling Capability • Three-Year Warranty
Description
The LI-215A Line Impedance Stabilization Network (LISN) is in full compliance with both CISPR 16-1-2 and ANSI C63.4. It provides the necessary measurement platform for performing power line conducted emissions compliance testing as required by most worldwide standards for commercial products. The LI215A performs each of the following functions during the measurement: • provides a defined, stable impedance across the measurement frequency range; and, • isolates the EUT and measurement circuit from the power source, thereby minimizing its influence on the measurements; and, • couples the disturbance voltages to the coaxial measurement port for connection to the measuring instrument.
This LISN uses air-core inductors to prevent saturation and permeability variation. The mounting plate of the LI-215A is left unpainted in order to facilitate connection to earth ground in its installation, which is essential due to high leakage current.
Versatility
Transient Protection
Com-Power Transient Limiters are a recommended accessory in order to protect the RF input of your measuring instrument from potentially damaging, instantaneous voltage transients. The transient limiter also reduces the possibility of overload by incorporating two 5 dB attenuation/impedance matching pads, in addition to its low-pass and high-pass filter sections which further attenuate any out-of-band emissions.
Calibration
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 certificate of calibration. Recognized ISO 17025 accredited calibration is also available upon request.
Typical Connection Diagrams Single-phase power system connections: AC POWER SOURCE
The LI-215A is a dual-conductor network capable of handling currents up to 15 Amps(AC) per line. The EUT power port is fitted with a NEMA 5-15R receptacle. The power input port is fitted with a standard IEC C13 receptacle. As shown in the diagrams on the right, the LI-215A can be installed into any type of power system, including DC, single-phase, dual-phase and even three-phase systems.
EQUIPMENT UNDER TEST (EUT)
LISN
MEASURING INSTRUMENT
DC power system connections: (+) DC POWER GND SOURCE (-)
EQUIPMENT UNDER TEST (EUT)
LISN
MEASURING INSTRUMENT
Three-phase power system connections with (2) LI-220A LISNs: Phase A
AC POWER SOURCE
Phase B
Phase C
Ground Neutral
LISN 50Ω
EQUIPMENT UNDER TEST (EUT)
LISN MEASURING INSTRUMENT
Rev. D10.16
Com-Power Corporation
19121 El Toro Road, Silverado, California 92676
(949) 459-9600
www.com-power.com
Line Impedance Stabilization Network LI-215A
Specifications
All values are typical, unless specified. All specifications are subject to change without notice.
Product Dimensions
GENERAL Product Description Line Impedance Stabilization Network (LISN) Application Power Line Conducted Emissions Tests Standards CISPR 16-1-2, ANSI C63.4 Type 50Ω / 50 μH + 5Ω (CISPR), 50 μH & 250 μH (ANSI) Frequency Range 9 kHz to 30 MHz Insertion Loss
(Voltage Division Factor)
(D) 15.35” (39 cm)
9 kHz - 150 kHz <6.5 dB to <0.5 dB
(increasing linearly with log of freq)
150 kHz - 30 MHz <0.5 dB
Isolation
13” (33 cm)
9 kHz - 150 kHz >10 dB to >60 dB
(increasing linearly with log of freq)
150 kHz - 30 MHz >60 dB
ELECTRICAL Voltage Rating 270 VoltsAC (rms), 380 VoltsDC (Line to Ground) Current Rating 15 AmpsAC (rms), 10 AmpsDC INPUT/OUTPUT CONNECTORS EUT Power Input Port IEC C13 Receptacle EUT Power Output Port NEMA 5-15R Receptacle
LI-215A LINE IMPEDANCE STABILIZATION NETWORK 9 kHz to 30 MHz 50 µH / 250 µH - 50Ω 270 Volts AC, 50/60 Hz, 15 Amps Max. 380 Volts DC, 10 Amps Max
RF Measurement Port 50Ω - N-Type (female) MECHANICAL Dimensions (H)x(W)x(D) 7.5” x 17” x 15.35” (19 x 43 x 39 cm)
(H) 7.5” (19 cm)
EUT POWER PORT
WARNING: HIGH VOLTAGE! VERIFY INPUT POWER CONFIGURATION PRIOR TO MAKING CONNECTION
(W) 17” (43 cm)
(5°C to 40°C)
Typical Impedance Data
Typical Phase Data
70
80 CISPR 16-1-2 and ANSI C63.4
60
70 60
50
Phase (degrees)
Impedance (Ω)
EMI MEASUREMENT PORT (50Ω)
LINE / L1
Weight 20.5 lbs (9.3 kg) ENVIRONMENTAL Operating Temperature 40°F to 104°F
TEST LEAD SELECTION NEUTRAL / L2
40 8
30
7 6
20
5 3 0.009
0 0.01
0.1
30 20
CISPR 16-1-2
10 0
4
10
50 40
1
-10 0.01
0.011
0.012
10
0.013
0.014
0.015
-20 0.001
100
0.01
Typical Insertion Loss
0.1
1
10
100
Frequency (MHz)
Frequency (MHz)
Typical Isolation Data
8
0 20
6 Isolation (dB)
Insertion Loss (dB)
7
5 4 3 2
60 80
1 0 0.001
CISPR 16-1-2
40
0.01
0.1
1
10
100
100 0.001
Frequency (MHz)
0.01
0.1
1
10
100
Frequency (MHz)
Rev. D10.16
Com-Power Corporation
19121 El Toro Road, Silverado, California 92676
(949) 459-9600
www.com-power.com
