• Title/Summary/Keyword: IEC 61000-3-2

Search Result 45, Processing Time 0.025 seconds

Analysis of Technology for RF Radiated E/H Fields EMS Tests (복사 전기장 및 자기장 내성시험 기술 분석)

  • Yum, J.H.;Choi, H.D.;Chae, J.S.
    • Electronics and Telecommunications Trends
    • /
    • v.17 no.4 s.76
    • /
    • pp.123-134
    • /
    • 2002
  • ISO/IEC14443-1(1), ISO/IEC10536-1(2), 그리고 ISO/IEC15693-1(3)에서 정의하고 있는 비접촉식 카드의 교류전기장 및 교류자기장에 대한 내성력 시험에 대해 살펴보고자 한다. 상기 규격은 ISO/IEC JTC1 기술위원회의 SC17에서 다루고 있으며, 아직 상기 표준 규격은 초안 상태에 있어 상세한 시험 방법에 대한 규격이 마련되어 있지 않은 실정이다. 그럼에도 불구하고 칩 카드 수입국은 수출업자에게 교류전기장 및 교류자기장 내성시험을 요구하고 있다. 따라서 업계에서는 시험 시설, 시험 방법, 시험 절차, 시험 평가 부분에서 많은 혼란이 발생되고 있다. 이러한 시험에 대한 대응책이 국가적 차원에서 시급히 마련되어야 할 것이다. 본 고에서는 이를 위한 일련의 과정으로서, 칩 카드 관련 국제 규격(1)-(5) 동향을 살펴보고, 교류전기장 및 교류자기장 내성력 시험 절차를 마련하기 위한 관점에서 IEC61000 시리즈 중에서 RF 복사 내성시험인 IEC61000-4-3(6), IEC61000-4-8, IEC61000-4-9, IEC61000-4-10, IEC61000-4-23(7)에 대한 분석을 동시에 실시하였다.

A Study on the Harmonics and Flickers Measurement of High Speed Electric Train Loads (고속열차 부하의 고조파 및 플리커 측정에 관한 연구)

  • Kim, Kyung-Chul;Kim, You-June
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.21 no.2
    • /
    • pp.71-77
    • /
    • 2007
  • High speed electric trains have time-varying nonlinear loads causing voltage fluctuations to the power system. A cumulative probablistic approach is the most commonly used method to solve time varying loads. Flicker can be defined as the effect produced on the human visual perception by a changing emission of light lamps subjected to magnitude fluctuations of their supply voltage. This paper provides an in depth analysis on harmonics and flickers measurement of the high speed electric train loads. And the measurement results are evaluated by the IEC 61000-3-6 and IEC 61000-3-7.

A Study on the Harmonics Evaluation of Extra High Voltage Customers by Field Tests (실측에 의한 특고압 수용가의 고조파 평가에 관한 연구)

  • Kim, Kyung-Chul;Kim, You-June
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.21 no.3
    • /
    • pp.50-55
    • /
    • 2007
  • A large steel industry which has nonlinear loads including electric arc furnaces is one of the extra high voltage customers. These nonlinear loads generate harmonic currents and create distortions on the sinusoidal voltage of the power system. Harmonic field measurements have shown that the harmonic contents of a waveform varies with time. A cumulative propablistic approach is the most commonly used method to solve time varying harmonics. In this paper the in varying harmonics of electric arc furnace loads are evaluated by international harmonic standards(IEC 61000-3-6, IEEE 519 and JIS C 61000-3-2).

A Study on the Harmonics Measurement and Assessment of the Electrolyzer Loads (전해조 부하의 고조파 측정 및 평가에 관한 연구)

  • Kim, Kyung-Chul;Lee, Joo-Hong;Jin, Seong-Eun;Park, Sang-Young;Lee, Il-Moo;Jeon, Young-Soo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.20 no.2
    • /
    • pp.29-37
    • /
    • 2006
  • Heavy chemical industries have nonlinear loads including elecrolyzers. AC-DC converters are the most widely used in an elecrolysis in a chemical plant. The electrolysis consists of AC-DC converter groups connected in parallel at the DC side. The converter operations cause harmonic currents and create distortions on the sinusoidal voltage of the AC power system. This paper provides an in depth analysis on harmonics field measurement for the electrolyzer loads and harmonics assessment by the international harmonic standards IEC 61000-3-6 and IEEE 519-1992.

The Determination of Reference Impedance on 1P2W Low Voltage System in Korea (국내 단상2선식 저압 배전계통 기준임피던스 선정에 관한 연구)

  • Kang, Moon-Ho;Song, Yang-Hyao;Lee, Heung-Ho
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.21 no.10
    • /
    • pp.35-39
    • /
    • 2007
  • Home appliances, like air-conditionals, washers, refrigerators, etc., can cause voltage fluctuations and light flicker. A standardized flicker test has been established in Europe(IEC 61000-3-3, IEC 61000-3-11). The supply impedance of power supply system varies from plate to place, and for the flicker test in KOREA, the appliance manufacturers do need standardized impedance like the one indicated in IEC 61000-3-3 for 230[V]/50[Hz]. Without it, the same appliance will have different flicker level at different places. For appliance manufacturers, the flicker limit should be related to the reference impedance. However, the European flicker test is designed for 230[V]/50[Hz] power and needs to be modified for a 1P2W(220[V]/60[Hz]) supply system in KOREA. In this paper, the reference impedance for KOREA(220[V]/60[Hz]) systems is proposed. The measured result provided in this paper was served as a proposal for establishing KOREA reference impedance for 220[V]/60[Hz] and has been published in IEC 60725.

Calculation of the Harmonic Emission Limit for low-Voltage Electrical Equipment (국내 저압 전기기기의 고조파 유출 제한값 산정)

  • Kang, Moon-Ho;Song, Yang-Hoi;Lee, Heung-Ho
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.22 no.10
    • /
    • pp.56-61
    • /
    • 2008
  • Because the harmonic disturbance characteristic which makes voltage drop and the deterioration of instantaneous power quality in electrical power system overheats the NGR and the customer capacitor and malfunctions the OCGR and AMR, it is necessary for electric power company to take active measures to reduce this disturbance. International Electrotechnical Commission(IEC) 61000-3-2 specifies limits for harmonic current emissions generated by low voltage(LV) electrical equipment whose input current $\leq$ 16(A) per phase. Analysis shows that limits for Class A equipment in IEC are calculated using the reference impedance of LV system and maximum permissible voltage and limits for other Classes are also calculated based on limits for Class A. Therefore we have calculated four(4) internal limits for LV electrical equipment using the korea reference impedance and maximum permissible voltage in this paper.

A Study on the current harmonic testing for the low-voltage circuit-breaker with electronic over-current protection (전자식 저압 차단기의 전류 고조파 시험에 대한 고찰)

  • Kim, Myoung-Seok;Oh, Jun-Sick;Han, Gyu-Hwan
    • Proceedings of the KIEE Conference
    • /
    • 2002.11d
    • /
    • pp.154-156
    • /
    • 2002
  • 본 논문은 저압 차단기에 적용되는 IEC 60947-2 (Circuit breakers)와 전류고조파(Current harmonic) 내성시험 규격인 IEC 61000-3-2. IEC 61000-3-4에 대한 규격의 적용범위, 시험범위, 고조파에 대한 개념, 차단기의 고조파에 대한 영향 및 시험설비의 요구조건을 고찰하고, 16A 초과 전류 고조파 시험적용 방법과 시험결과를 고찰하고자 한다.

  • PDF

A Study on the Hormonic Analysis of on Electronic Ballast (전자식 안정기의 고조파 저감 대책)

  • Hong, Soon-Seuk;Oh, Jung-Suk;Yoo, Tae-Kun
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.19 no.2
    • /
    • pp.35-41
    • /
    • 2005
  • Electric ballast is widely used to turn on the fluorescent. Electric ballast measure occurrence of harmonic through the actual measurement and it is simulated by modeling equivalent circuit for harmonic analysis. The purpose of this paper is to give an equivalent circuit modeling methodology for the harmonic currents generated by single-phase loads to evaluate a commercially available series resonant filter for the harmonic currents compensation based on the IEC 61000-3-2 and IEEE Std 519-1992 standards for limiting harmonic distortion.

The Characteristics Analysis of New Dc 48[V] Telecommunication Power System using Forward Type three Phase Rectifier (포워드형 3선 PWM 정류기를 이용한 새로운 DC 48[V] 통신용 전원시스템의 특성 해석)

  • Suh, Ki-Young
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.20 no.1
    • /
    • pp.34-40
    • /
    • 2006
  • This paper proposed power system for new DC 49[V] telecommunication using forward three-phase PWM rectifier power factor and efficiency for improvement of ripple voltage. Proposed power system for DC 48[V] telecommunication that consists of power conversion devices including switch, inductor and condenser were made between each line, in power inverter device of each switch control turn-on in period of continuity time control to get power factor '1' of sine wave current and on-off of switch lessens peak current that was happened and got conversion efficiency 92.1[%] composing in PWM rectifier of forward form instead of general PWM rectifier. Also, harmonic input regulation value(IEC61000-3-2 Class-As) satisfy input current and reduce ripple factor of output voltage in state that distortion of three-phase supply is overlapped each other.

Bridgeless High Efficiency ZVZCS Power Factor Correction Circuit for PDP Power Module (PDP 파워 모듈을 위한 브리지 없는 고효율 ZVZCS 역률개선회로)

  • Ryu Byung-Gyu;Moon Gun-Woo;Cho Kyu-Min
    • The Transactions of the Korean Institute of Power Electronics
    • /
    • v.10 no.3
    • /
    • pp.226-232
    • /
    • 2005
  • Recently, many nation have released standard such as IEC 61000-3-2 and IEEE 59, which impose a limit on the harmonic current drawn by equipment connected to AC line in order to prevent the distortion of an AC Line. Therefore, Plasma Display Panel(PDP) which is highlightened in digital display device also has the Power Factor Correction(PFC) circuit to meet the harmonic requirements. In PDP power module, the conventional boost converter is usually used for the PFC circuit. However, it comes serious thermal problem on it's bridge diode due to heat of PDP, and therefore the system stability is not guaranteed. In this paper, the bridgeless boost converter, which is used for PFC circuit of the PDP power module, is designed and verified the possibility of the application In a practical product in a view of efficiency, component count, temperature and etc.