This standard specifies the technical requirements of the control and protection equipment of ±800 kV Ultra High Voltage Direct Current(UHVDC) transmission system (hereinafter referred to as control and protection equipment).
This standard is applicable to the control and protection equipment of the UHVDC transmission system with two 12-pulse converters connected in series per pole of the±800 kV converter station.Control and protection equipment of the UHVDC transmission system with other voltage levels and different main circuit structures may implement this standard by reference.
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