High-voltage direct current (HVDC) power transmission using voltage sourced converters (VSC)1 Scope This technical report gives general guidance on the subject of voltage sourced converters used for transmission of power by high voltage direct current (HVDC). It describes converters that are not only voltage sourced (containing a capacitive energy storage medium and where the polarity of d. c. voltage remains fixed) but also self commutated, using semiconductor devices which can both be turned on and turned off by control action. The scope

and the biogas volume is measured with a syringe or a gas burette

in heat resisting nickel base alloy NI-PH2601

weld metal or heat affected zone (HAZ)

2 guides you with the procedure and expression of the results of the test method

This part of BS 4592 specifies requirements for the design

anti-tracking

the following issues are addressed:

BS IEC 61935‑1‑1 specifies additional reference measurement procedures for level V field test transverse conversion loss (TCL) and equal level transverse conversions transfer loss (ELTCTL) and the requirements for field tester accuracy to measure these parameters

these are defined in specific regulations

thermal resistance test and more

the electrical and mechanical functional tests provide indications on the extent of ageing on insulation systems due to voltage stresses

Whenever allowed by national regulations