IEC/TR 61869-103 Ed. 1.0 en:2012

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Instrument transformers - The use of instrument transformers for power quality measurement

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Instrument transformers - The use of instrument transformers for power quality measurement

PUBLISH DATE 2012

Instrument Transformers - The use of instrument transformers for power quality measurement.

IEC/TR 61869-103:2012(E) is applicable to inductive and electronic instrument transformers for use with electrical measuring instruments for measurement and interpretation of results for power quality parameters in 50/60 Hz a.c. power supply systems.

It gives guidance in the usage of HV instrument transformers for measuring the following power quality parameters:

  • power frequency,
  • magnitude of the supply voltage and current,
  • flicker,
  • supply voltage dips and swells,
  • voltage interruptions,
  • transient voltages,
  • supply voltage unbalance,
  • voltage and current harmonics and interharmonics,
  • mains signalling on the supply voltage, and
  • rapid voltage changes.
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