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PROTECTION SYSTEM FOR DC POWER TRANSMISSION SYSTEM, AC-DC CONVERTER, AND METHOD OF INTERRUPTING DC POWER TRANSMISSION SYSTEM

  • US 20170163170A1
  • Filed: 02/14/2014
  • Published: 06/08/2017
  • Est. Priority Date: 02/14/2014
  • Status: Active Grant
First Claim
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1. A protection system for a DC power transmission system,the protection system being for use in a configuration including an AC-DC converter between an AC system and the DC power transmission system, whereina DC circuit breaker is provided between the DC power transmission system and the AC-DC converter,a bypass switch capable of short-circuiting a converter cell included in the AC-DC converter is connected to an inside of the AC-DC converter or an outside of the AC-DC converter on an AC side, and,when a fault occurs in the DC power transmission system, the bypass switch is turned on to interrupt supply of DC power from the AC system to the DC power transmission system.

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