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Relay Protection Work Manual

  • 2013-09-22
  • 169.96KB
  • Points it Requires : 2

Current transformer (CT) is a very important power component in the power system. Its function is to convert the large current on the primary high-voltage side into the secondary current through alternating magnetic flux for protection, measurement, wave recording, metering, etc. The secondary rated current of the current transformers used in this bureau is 5A, that is, it is marked as 100/5, 200/5, etc. on the nameplate, which means that if there is 100A or 200A current on the primary side, the current converted to the secondary side is 5A.

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