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IEC61000-3-2

IEC61000-3-2. Limits for harmonic current emissions (equipment input current <=16A per phase). Chroma T&M BU Product & Marketing Div. ~ 周晏加 ~ . Background and History Test instruments Classification of equipment Test methods

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IEC61000-3-2

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  1. IEC61000-3-2 Limits for harmonic current emissions (equipment input current <=16A per phase) Chroma T&M BU Product & Marketing Div. ~ 周晏加 ~ W o r k i n g O n B e t t e r S o l u t i o n s

  2. Background and History Test instruments Classification of equipment Test methods Test instruments Limits Test conditions OUTLINE W o r k i n g O n B e t t e r S o l u t i o n s

  3. Background Too much Harmonic Current pollute Main power W o r k i n g O n B e t t e r S o l u t i o n s

  4. History • IEC 555-2 ( ~1/1/2001) • IEC61000-3-2:1995 (1/1/2001 ~1/1/2004) • IEC 61000-3-2 A14 (1/1/2001 ~ ) • GB17625.1-1998 中國3C認證項目 (1/5/2002 開始, 1/5/2003強制 ) W o r k i n g O n B e t t e r S o l u t i o n s

  5. Chroma Solution for IEC61000-3-2 W o r k i n g O n B e t t e r S o l u t i o n s

  6. AC Power Requirements Voltage accuracy : 2.0 % or better Frequency accuracy : 0.5 % or better Power Capacity : 230V x 16A = 3680VA Voltage Harmonic distortion (With EUT connected): 0.9 % for harmonic of order 3 0.4 % for harmonic of order 5 0.3 % for harmonic of order 7 0.2 % for harmonic of order 9 0.2 % for even harmonic of order from 2 to 10 0.1 % for harmonic of order 11 to 40 W o r k i n g O n B e t t e r S o l u t i o n s

  7. Zm Zs EUT G Meter AC source Equipment AC Power Requirements Zs and Zm are not specified. But have to be low to suit the test requirements. AC source, Meter and Cable must good. W o r k i n g O n B e t t e r S o l u t i o n s

  8. Chroma Programmable AC Source Chroma Programmable AC Source Spec. : Voltage accuracy : 0.2 % + 0.2 %F.S < 2% Frequency accuracy : 0.15 % < 0.5% Power Capacity : For different EUT For each test, Check Voltage Harmonic Distortion Model 6560 (6KVA), Model 61505 (4KVA) W o r k i n g O n B e t t e r S o l u t i o n s

  9. Chroma Power Analyzer 6630 • Total error in steady-state mode : Shall not exceed 5% of permissible limit or 0.2 % of rated current of EUT • Maximum relative deviation between f1 and synchronise frequency : Equal to or lower than 0.03 % of f1 • Attenuation of anti-aliasing filter : 50 dB at least W o r k i n g O n B e t t e r S o l u t i o n s

  10. IEC 61000-3-2 Classification Y Balance three-phase equipment N Portable tools Class B Y N Class C * Input power > 25W Lighting equipment Y N N N *Motor driven Class D * Input power > 75W Equipment having special wave shape and P <= 600 W Y Y Class A N W o r k i n g O n B e t t e r S o l u t i o n s

  11. Classification A 0.35 W o r k i n g O n B e t t e r S o l u t i o n s

  12. Classification D 0.35 W o r k i n g O n B e t t e r S o l u t i o n s

  13. Class A Maximum permissible harmonic current A Harmonic order n Odd harmonics 3 5 7 9 11 13 15<= n <=39 2.30 1.14 0.77 0.40 0.33 0.21 0.15 x 15/n Even harmonics 2 4 6 8<= n <= 40 1.08 0.43 0.30 0.23 x 8/n W o r k i n g O n B e t t e r S o l u t i o n s

  14. Maximum permissible harmonic current expressed as percentage of the input current at the fundamental frequency % Harmonic order n 2 30‧ * 10 7 5 3 2 3 5 7 9 11<= n <=39 Odd harmonics only * is the circuit power factor Class B, C Class B : 1.5 times of class A limits Class C : W o r k i n g O n B e t t e r S o l u t i o n s

  15. Class D Maximum perm- issible harmonic current (A) Maximum permissible harmonic current per watt mA/W Harmonic order n 3.4 1.9 1.0 0.5 0.35 3.85/n 2.30 1.14 0.77 0.40 0.33 See class A 3 5 7 9 11 13<= n <=39 Odd harmonics only W o r k i n g O n B e t t e r S o l u t i o n s

  16. Transitory state Measure every 16 cycles of fundamental frequency for 2.5 mins Smoothing the harmonic components by LPF having time constant of 1.5S +- 10% i 16 cycles Smoothing i 2.5 min W o r k i n g O n B e t t e r S o l u t i o n s

  17. i 2.5 min (150s) Transitory state For harmonic order 3-19 and 2-10, if 1. T<10% of observation period (15 sec) and 2. none of the waveform over 1.5 times limits It will be considered as pass the limits 1.5 x Limit Limit T W o r k i n g O n B e t t e r S o l u t i o n s

  18. Amendment 14 • Classification: • Only PC, PC monitor or TV receiver are class D. • Measuring time • Transitory state W o r k i n g O n B e t t e r S o l u t i o n s

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