Com-Power LI-550C 사용 설명서 - 페이지 10

{카테고리_이름} Com-Power LI-550C에 대한 사용 설명서을 온라인으로 검색하거나 PDF를 다운로드하세요. Com-Power LI-550C 16 페이지. Line impedance stabilization network

5.0 P

RODUCT

ESCRIPTION

The LI-550C Line Impedance Stabilization Network is specifically designed to

provide necessary measurement platform for performing power line conducted

emissions (disturbance measurements) compliance testing as required for CISPR,

CE and other worldwide standards for commercial products. It is fully compliant

with the requirements of both CISPR 16-1-2 and CISPR 25.

The LI-550C performs each of the following functions during the measurement:

Before initiating use of LISN, ensure that,

Failure to comply with any of these points may damage the equipment and/or

pose an electrical hazard.

5.2.1 Typical connection diagrams

1 9 1 2 1 E l T o r o R d ● S i l v e r a d o , C a l i f o r n i a 9 2 6 7 6 ● ( 9 4 9 ) 4 5 9 - 9 6 0 0 ● c o m - p o w e r . c o m

• provides a defined, stable impedance throughout the measurement

frequency range;

• 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 like EMI Receiver or Spectrum

Analyzer.

• PE conductor is connected to ground.

• The ventilation openings are unobstructed.

• No signal or operating voltages above the permissible limits given in

specification.

• The LISN's power input port is connected to an appropriate power source

employing properly rated mains protection, as over current protection is

not provided in the LISN.

The LISNs can be used with single phase power sources with one set of

LISNs and also three phase power sources (requires two sets of LISNs). Given

below are the typical connection setup's for each configuration.

Figure 1: Single Phase connection with one set of LISN

LI-550C LINE IMPEDANCE STABILIZATION NETWORK

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INSTRUCTION MANUAL

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