Scope of electrical testing for voltage source converter valves used in high-voltage direct current transmission: This standard is applicable to self commutating converter valves for three-phase bridge type voltage source converters (VSCs) in high-voltage direct current transmission systems or back-to-back systems. This standard is limited to electrical type testing and routine testing. The scope of this standard includes electrical type testing and routine testing of dynamic brake valves applied to high-voltage direct current (HVDC) overvoltage limitation. This standard can be used to guide the testing of static synchronous compensator (STATCOM) valves. The tests specified in this standard are based on air insulated valves. For other types of valves, after reaching a consensus between the buyer and seller, the test requirements and acceptance criteria of this standard can also be referred to. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 7354-2003 Partial Discharge Measurement (IEC 60270; 2000, IDT) ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories IEC 60060 (all parts) High voltage test techniques IEC 60071 (all parts) Insulation co coordination IEC 60700-1; 2008 Thyristor valves for high voltage direct current power transmission Part 1: Electrical testing
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