Noise measurement method on power capacitors

IEC TR 63396:2021(E) documents a method for the sound pressure level measurement on power capacitor units, by which the sound power level of power capacitor units is determined.
This method is applicable to shunt capacitor units and AC filter capacitor units for AC power systems with a nominal voltage of 1 kV and above and a frequency of 50 Hz or 60 Hz.
This method also applies to the DC filter capacitor units.
Other measurements on power capacitor units can be implemented with reference to this method.

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IEC TR 63396

Edition 1.0 2021-11

Noise measurement method on power capacitors
IEC TR 63396:2021-11(en)

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IEC TR 63396


Edition 1.0 2021-11



Noise measurement method on power capacitors




ICS 29.120.99; 31.060.70 ISBN 978-2-8322-1049-8

  Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission

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– 2 – IEC TR 63396:2021 © IEC 2021
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Noise measurement . 10
4.1 Power injection conditions for capacitors . 10
4.1.1 Current injection conditions for shunt capacitor units . 10
4.1.2 Current injection conditions for AC filter capacitor units . 11
4.1.3 Current and voltage injection conditions for DC filter capacitor units . 11
4.2 Measuring environment . 11
4.3 Characteristics for basic acoustic instruments . 11
4.4 Arrangement of the power capacitors . 11
4.5 Arrangement of the microphone . 12
4.6 Measurement on sound pressure levels .

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