Study on Seismic Reliability of UHVDC Transmission Systems

Table 3

Seismic reliability of a monopolar subsystem of the UHVDC transmission system.

Subsystem	Equipment	Quantity	Formula	Seismic reliability (%)
CTV	Valve	3		99.85
	Transformer	6
DC	Reactor smoothing	2		73.70
	Filter tower	1

Note: “Quantity” refers to the number of such devices in a single subsystem. The derivation of the formula is detailed in Section 2.3.