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Matters needing attention when matching capacitors and series reactors

Matters needing attention when matching capacitors and series reactors

  • Categories:Industry news
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  • Time of issue:2021-12-31
  • Views:0

(Summary description)1) The choice of series reactor in the capacitor device of the new substation must be careful, and it cannot be arbitrarily combined with the capacitor, and the harmonic background at the connection point of the capacitor device must be considered.
2) For the capacitor device that has been put into operation, it is necessary to further check whether the selection of the series reactor is reasonable, and organize on-site measurement to understand the changes in the harmonic background of the power grid. Reasonable selection of capacitor devices for reactance rate shall not arbitrarily increase or decrease the capacity of the capacitor bank.
3) When the capacity of the capacitor bank changes greatly, you can choose a reactor for synchronously adjusting the taps of capacitors or choose a mixed installation of reactors. Through the analysis and calculation of the static overvoltage condition of the capacitor bank during normal operation and the voltage rise of the capacitor terminal during reactive power overcompensation, a 0.5%~1% w reactor is selected to prevent the overvoltage generated when the capacitor bank is switched.

Matters needing attention when matching capacitors and series reactors

(Summary description)1) The choice of series reactor in the capacitor device of the new substation must be careful, and it cannot be arbitrarily combined with the capacitor, and the harmonic background at the connection point of the capacitor device must be considered.
2) For the capacitor device that has been put into operation, it is necessary to further check whether the selection of the series reactor is reasonable, and organize on-site measurement to understand the changes in the harmonic background of the power grid. Reasonable selection of capacitor devices for reactance rate shall not arbitrarily increase or decrease the capacity of the capacitor bank.
3) When the capacity of the capacitor bank changes greatly, you can choose a reactor for synchronously adjusting the taps of capacitors or choose a mixed installation of reactors. Through the analysis and calculation of the static overvoltage condition of the capacitor bank during normal operation and the voltage rise of the capacitor terminal during reactive power overcompensation, a 0.5%~1% w reactor is selected to prevent the overvoltage generated when the capacitor bank is switched.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2021-12-31
  • Views:0
Information
1) The choice of series reactor in the capacitor device of the new substation must be careful, and it cannot be arbitrarily combined with the capacitor, and the harmonic background at the connection point of the capacitor device must be considered.
2) For the capacitor device that has been put into operation, it is necessary to further check whether the selection of the series reactor is reasonable, and organize on-site measurement to understand the changes in the harmonic background of the power grid. Reasonable selection of capacitor devices for reactance rate shall not arbitrarily increase or decrease the capacity of the capacitor bank.
3) When the capacity of the capacitor bank changes greatly, you can choose a reactor for synchronously adjusting the taps of capacitors or choose a mixed installation of reactors. Through the analysis and calculation of the static overvoltage condition of the capacitor bank during normal operation and the voltage rise of the capacitor terminal during reactive power overcompensation, a 0.5%~1% w reactor is selected to prevent the overvoltage generated when the capacitor bank is switched.

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