고조파 및 플리커 분석기

1. 장비에 대한 기본 이해

1.1 시스템 구성

The Harmonics and Flicker Analyzer is a complete, certification-grade single-phase electromagnetic compatibility (EMC) test system consisting of three professionally matched instruments.

번호	주의 사항
①LSHF61000-3-2/3 Harmonic and Flicker Analyzer	Core measurement unit responsible for collecting power quality parameters, performing harmonic analysis, and calculating flicker
②LSAIF-503 Scintillation Impedance Network	Simulates the grid impedance characteristics specified in the standard to ensure the accuracy of the flicker test results
③LSP-*VAC-HF Low-Distortion AC Power Supply	Provides a clean, stable sinusoidal voltage to the equipment under test (EUT), eliminating harmonic and ripple interference from the power grid itself

1.2 작동 원리

System acquires the input signals from the device under test via voltage and current pure-resistance sampling sensors. After high-fidelity amplification and 16-bit high-speed analog-to-digital conversion, the signals are processed in real time by the digital processing module.

시험 항목	주의 사항
고조파 테스트	Performs precise analysis of 2nd through 50th harmonic components, automatically compares results against the limit values specified in the GB 17625.1 (IEC 61000-3-2) standard, supports harmonic limit evaluations for Class A, B, C, and D equipment, and automatically generates pass/fail determinations.
플리커 테스트	Complies with the GB 17625.2 (IEC 61000-3-3) standard, and calculates short-term flicker value (Pst), long-term flicker value (Plt), and parameters such as dt, dc, dmax, and Tmax by simulating the human eye’s perception of voltage fluctuations
Input Characteristic Testing	Measure basic power quality parameters such as voltage, current, power, and power factor

1.3 장비 구성 검증

1.3.1 포장 풀기

기기를 개봉할 때는 날카로운 도구로 케이스에 흠집이 나지 않도록 조심스럽게 다루십시오. 개봉 후에는 먼저 기기 외관을 검사하여 눈에 띄는 변형이나 찌그러짐이 없는지, 버튼이 손상되었거나 헐거워지지 않았는지 확인하십시오. 기기 또는 부속품에 이상이 발견되면 전원을 켜지 마시고 즉시 저희에게 연락해 주십시오.

1.3.2 본체 및 부속품

Main units: One each of the LSHF61000-3-2/3, LSAIF-503, and LSP-*VAC-HF.

See Figure 1-1 for the main components.

번호	주의 사항
①	Power connection cable, used to connect the LSAIF-503 and the LSHF61000-3-2/3
②	USB cable for connecting the LSHF61000-3-2/3 to a computer
③	RS-232 communication cable/RS-232-to-USB adapter cable, used to connect the LSP-*VAC-HF to a computer
④	EUT power cord, used to connect the LSHF61000-3-2/3 to the EUT
⑤	전원 코드
⑥	예비 퓨즈
⑦	Power Adapter for the LSAIF-503

그림 1-1

1.3.3 전자 문서 다운로드

전자 사용자 설명서, 교정 인증서, 보증서 및 기타 문서의 다운로드 링크는 제품 발송 시 이메일로 이미 보내드렸습니다. 즉시 다운로드해 주시기 바랍니다. 만약 이메일을 받지 못하셨다면, 저희에게 연락하여 다운로드 링크를 다시 요청해 주십시오.

2. 사용상의 주의

2.1 전기 안전

System must be connected to a stable single-phase AC 220V ±10%, 50/60 Hz power source, and ensure proper grounding with a ground resistance of ≤1 Ω;

Do not use the equipment if the power connections are loose or the cables are damaged.

2.2 환경 안전

The equipment must be placed in a dry, well-ventilated environment free of dust and corrosive gases, away from flammable and explosive materials;

주변 온도: 15~35°C; 상대 습도: 65% 이하(결로 없음);

장비를 강한 자기장이나 강한 전기장으로부터 멀리하십시오.

2.3 작동 안전

High-Voltage Hazard: High voltage is present inside the instrument; under no circumstances should the housing be opened while the power is on;

Wiring Safety: Before connecting or disconnecting the EUT, the LSP-*VAC-HF power output must be turned off;

Secure Wiring: Ensure that all terminal connections are reliable and secure to prevent poor contact or sparks caused by loose connections;

Troubleshooting: If you notice that the instrument emits an unusual odor, smoke, or makes unusual noises, immediately disconnect all power sources and contact the manufacturer for repairs;

No Modifications: Do not modify the instrument or replace any internal components without the manufacturer’s written consent.

2.4 기타

본 설명서에 나와 있지 않은 사항에 대해서는 주의를 기울여 진행하시거나 당사에 문의해 주십시오.

3. 장비 개요 및 배선

3.1 LSHF61000-3-2/3 Instrument Panel Description

3.1.1 전면 패널

그림 3-1를 참조하세요.

번호	주의 사항
①	Load button: Turns the EUT power on or off
②	Touchscreen that displays test parameters and results. Note: When using the computer software, there is no need to operate the touchscreen.

그림 3-1

3.1.2 후면 패널

그림 3-2를 참조하세요.

번호	주의 사항
①	전원 스위치
②	Power Cord Jack and Fuse
③	Output terminals, connected to the EUT
④	Input terminal, connected to the output terminal on the front panel of the LSAIF-503
⑤	USB port, for connecting to a computer
⑥	RS-232 and other ports, for backup

그림 3-2

3.2 LSAIF-503 Instrument Panel Description

3.2.1 전면 패널

그림 3-3를 참조하세요.

번호	주의 사항
①	Output terminal, connected to the input terminal on the back panel of the LSHF61000-3-2/3
②	To test for flickering, set the switch to “FLICKER”; to test for harmonics, set the switch to “BYPASS.”

그림 3-3

3.2.2 후면 패널

그림 3~4을 참조하십시오.

번호	주의 사항
①	Power input cable, connected to the LSP-*VAC-HF output port
②	12V DC power connector for connecting the power adapter

그림 3-4

3.3 LSP-*VAC-HF Instrument Panel Description

3.3.1 전면 패널

그림 3~5을 참조하십시오.

번호	주의 사항
①	전원 스위치
②	디스플레이
③	Control Panel: The LSP-*VAC-HF can be controlled using software; there is no need to use the control panel.
④	Power Output Button: The LSP-*VAC-HF power output can be controlled via software, eliminating the need for the output button.
⑤	Output port; connect the input power supply cord to the LSAIF-503 back panel

그림 3-5

3.3.2 후면 패널

그림 3~6을 참조하십시오.

번호	주의 사항
①	전원 코드 잭
②	퓨즈
③	Input voltage switching: The device is set to 230V by default at the factory. Please do not change this setting arbitrarily.
④	RS-232 communication port, connected to a computer via a communication cable
⑤	Synchronization signal output port—no connection required
⑥	Power output port—this functions the same as the front-panel output port; simply connect to either one.

그림 3-6

4. 소프트웨어 설치 및 구성

4.1 소프트웨어 및 드라이버 설치

4.1.1 소프트웨어 런타임 환경

System Requirements: Windows 7/Windows 8/Windows 10/Windows 11 (32-bit/64-bit); the computer must have at least two USB ports.

4.1.2 소프트웨어 설치

그림 4-1를 참조하세요.

번호	주의 사항
①	LSHF61000-3-2/3 software—please double-click to install
②	RS232-USB Adapter Driver—Double-click to install

그림 4-1

If, during the software installation process, your antivirus software or Windows Firewall flags a file as suspicious, you can add the installer to the trust list in your antivirus software and firewall, or temporarily disable your security software and try the installation again. Once the installation is complete, restore your security protection.

Note: After the software is successfully installed, two icons will appear on the desktop: “LSHF61000-3-2 Harmonic Analyzer” and “LSHF61000-3-3 Flicker Analyzer.” When using the software, only one of these programs may be open at a time; otherwise, communication errors may occur.

4.2 소프트웨어 설정

4.2.1 LSHF61000-3-2 Harmonic Analyzer Software

See Figure 4-2; click to install the driver.

그림 4-2

As shown in Figure 4-3, enter the port settings screen.

그림 4-3

For setup instructions, see Figure 4-4.

설정 단계	주의 사항
LSHF61000-3-2/3 Communication
①	First, manually select any port
②	Ensure the baud rate is 1000,000
③	Click “Automatically Search for Ports”; if communication is successful, a message will appear indicating that the search was successful.
LSP-*VAC-HF Communication
④	Check the “Power Options” box
⑤	First, manually select any port.
⑥	Ensure the baud rate is 9600
⑦	Select model LSP-*VAC-HF
⑧	Click to automatically search for the port; if communication is successful, a message will appear indicating that the search was successful.
⑨	After the search for all ports is complete, click OK to save and exit.

그림 4-4

4.2.2 LSHF61000-3-3 Flicker Analyzer Software

See Figures 4–5; click to install the driver.

그림 4~5

See Figures 4–6 to access the port settings screen.

그림 4~6

For setup instructions, see Figures 4–7.

설정 단계	주의 사항
LSHF61000-3-2/3 Communication
①	First, manually select any port.
②	Ensure the baud rate is 1000,000
③	Click “Automatically Search for Port.” If communication is normal, a message will appear indicating that the search was successful.
LSP-*VAC-HF Communication
④	Check the “Power Options” box
⑤	First, manually select any port.
⑥	Ensure the baud rate is 9600
⑦	Select model LSP-*VAC-HF
⑧	Click “Automatically Search for Ports.” If communication is successful, a message will appear indicating that the search was successful.
⑨	After the search for all ports is complete, click OK to save and exit.

그림 4-7

5. GB 17625.1 (IEC 61000-3-2) Harmonic Testing

5.1. 기기 준비

단계	주의 사항
①	Refer to Chapter 3 to complete all wiring, and turn on all devices.
②	Refer to Section 3.2.1 and set the switch to the BYPASS position.
③	Refer to Section 3.1.1; press the load button to turn on the power to the EUT.

5.2 Software Preparation

5.2.1 Test Options

그림 5-1를 참조하세요.

번호	주의 사항
①	The software comes preconfigured with the limit values specified in the IEC 61000-3-2 standard and requires no modification. If you have special requirements, you can click to modify the relevant data.
②	Harmonic Test Options
③	Click to select and save the maximum PF value recorded during the test.
④	Product and Test Data Entry

그림 5-1

5.2.2 Harmonic Test Options Screen

그림 5-2를 참조하세요.

번호	주의 사항
①	Select the test category to be used as a basis (IEC Class 4 equipment and related categories are pre-installed). Class A: Balanced three-phase equipment, household appliances (excluding Class C and Class D), tools (excluding portable tools), etc.; Class B: Portable tools, non-professional arc welding equipment; Class C: Lighting equipment (including dimmers); Class D: Personal computers, televisions, monitors, etc., with a power rating ≤600 W
②	Set the rated voltage and frequency for the EUT to automatically control the output of the LSP-*VAC-HF power supply.
③	Set voltage fluctuation limits to automatically control the output of the LSP-*VAC-HF power supply
④	Click to activate the LSP-*VAC-HF power output, with the EUT in normal operating mode.
⑤	After the test is complete, click to disconnect the LSP-*VAC-HF power output.
⑥	All other parameters on this screen have been configured in accordance with the standard. If you have any special requirements, you can click “Add/Edit” to customize the test level name or modify the test parameters.
⑦	Click to select, then enable the test parameters that have been selected and edited.

그림 5-2

5.3 고조파 테스트

5.3.1 Dimmable Light Pre-test

See Figure 5-3; click to access the dimmable light pre-test interface.

그림 5-3

See Figure 5-4 for the procedure.

번호	주의 사항
①	After clicking “Test,” slowly and steadily adjust the dimmer from the lowest brightness to the highest brightness, then slowly return it to the lowest brightness to complete a full dimming cycle.
②	This column displays the current THC value and power.
③	This column shows the maximum THC value and its power.
④	This column shows the minimum power values and their THC values.
⑤	This column displays the maximum power values and their THC values.
⑥	After completing the dimming operation, record all the data and click “Stop Test.”
⑦	Click to log out

그림 5-4

In accordance with the requirements of the reference standard and based on the preliminary test data, access the harmonic test options screen (see 5.2.2) to reconfigure the test parameters.

5.3.2 Run the harmonic test and view the test report

그림 5-5를 참조하세요.

번호	주의 사항
①	Click to Start the Test
②	The test progress is displayed here; the default test duration is 150 seconds.
③	If any abnormalities occur, you may click to end the test. Note: If the test is terminated, no valid test data will be provided.
④	After the test is complete, the software interface displays the test results. You can click the tabs to switch between the overall report, voltage harmonics, current harmonics, current phase angle, and total current harmonics.
⑤	You can save or open the original test file. Note: The original test file can only be opened using LISUN 소프트웨어.
⑥	Export test reports to Word, export test reports to PDF, print test reports

그림 5-5

5.3.3 Instrument Operation at the End of Testing

단계	주의 사항
①	Refer to Section 5.2.2, navigate to the harmonic test options screen, and click to disable the LSP-*VAC-HF power output.
②	Refer to 3.1.1; press the load button again to cut off power to the EUT.
③	Replace the EUT for testing, or turn off the instrument

6. GB 17625.2 (IEC 61000-3-3) Flicker Test

6.1. 기기 준비

단계	주의 사항
①	Refer to Chapter 3 to complete all wiring, and turn on all equipment.
②	Refer to Section 3.2.1 and set the toggle switch to the “FLICKER” position.
③	Refer to Section 3.1.1; press the load button to turn on the EUT’s power supply.

6.2 Software Preparation

6.2.1 Settings Options Drop-down List

그림 6-1를 참조하세요.

번호	주의 사항
①	Flicker Test Options
②	Product and Test Data Entry

그림 6-1

6.2.2 Flicker Test Options Interface

그림 6-2를 참조하세요.

번호	주의 사항
①	Default test options, already configured according to the standard
②	If you need to make changes, click “Add/Edit” to modify the test option names and their parameters.
③	Click to select, then enable the test parameters that have been selected and edited.

그림 6-2

6.3 Flicker Test

6.3.1 Run the test and view the test report

그림 6-3를 참조하세요.

번호	주의 사항
①	Apply the correct voltage and frequency to the EUT
②	Click SET to configure and activate the LSP-*VAC-HF power output, bringing the EUT into normal operating mode.
③	Click to start the flashing test
④	The test progress is displayed here. The default test duration is 10 minutes × 2 = 20 minutes.
⑤	If any abnormalities occur, you may click to end the test. Note: If the test is terminated, no valid test data will be provided.
⑥	Once the test is complete, you can click to disconnect the LSP-*VAC-HF power output.
⑦	You can save or open the original test file. Note: The original test file can only be opened using LISUN 소프트웨어.
⑧	Export test reports as Word files, export test reports as PDF files, print test reports

그림 6-3

6.3.2 Instrument Operation at the End of the Test

단계	주의 사항
①	Refer to Section 6.3.1 and click to cut off the LSP-*VAC-HF power output.
②	Refer to 3.1.1; press the load button again to cut off power to the EUT.
③	Replace the EUT for testing, or turn off the instrument

7. 장비의 일상 유지보수 및 관리

7.1 일일 청소

Regularly wipe down the instrument housing with a clean, soft cloth to remove dust and stains; when cleaning the touchscreen, gently wipe it with a soft microfiber cloth, and avoid using organic solvents; when cleaning the terminal blocks, wipe them with anhydrous alcohol to remove oxidation and dirt.

7.2 정기점검

Check the power cord and test leads for any damage or signs of wear; check that the terminals are secure and not loose; check that the instrument’s ventilation openings are not blocked.

7.3 Storage Specifications

7.3.1 저장 환경 요구 사항

Temperature: 5°C to 35°C; relative humidity: ≤65% RH; dry, dust-free environment free of corrosive gases.

7.3.2 장기 저장 작업

전원을 끄고 모든 케이블을 분리하십시오. 장비를 청소하고 방진 필름으로 감싸십시오. 매달 30분씩 전원을 켜서 부품의 습기 손상을 방지하십시오.

7.4 교정 주기 요구사항

측정 정확도와 장비의 작동 신뢰성을 보장하기 위해, 자격을 갖춘 제3자 계측 연구소에 정기적으로 보내 교정을 받는 것이 좋습니다. 권장 교정 주기는 12개월입니다. 사용자는 사용 빈도, 환경 조건 및 품질 시스템 요구 사항을 고려하여 구체적인 교정 주기를 결정할 수 있습니다.

8. 문제 해결 및 일반적인 문제 해결 방법

결함 증상	가능한 원인들	순서
터치스크린이 작동하지 않습니다.	Dust or smudges on the touchscreen surface, or System freezes	After turning off the instrument, clean the touchscreen surface and restart the instrument.
테스트 데이터가 없습니다	Terminating the Test During the Testing Process	Do not manually stop the test; wait for it to complete normally.
소프트웨어가 실행되지 않습니다	You did not log in to the computer with an administrator account and run the software.	Please log in to your computer with an administrator account, right-click the software icon, and select “Run as administrator.”
Communication and Testing Errors	Both programs are running at the same time	Only one program may be open at a time; close the current program before opening another one.
Abnormal Flicker Test Results	Not connected to the LSAIF-503 scintillation impedance network	Connect the LSAIF-503 according to standard procedures, and set the front-panel selector switch to FLICKER.
Measurement Accuracy Deviation	The ambient temperature is too high or too low, or the test cable is too long or too thin.	Return the test environment to room temperature, and use the standard test cable or a thicker test cable.