Gunnar Asplund

Direct-current breaker for high power for connection into a direct-current carrying high-voltage line

REDUCTION OF DISTURBANCES IN A POWER NETWORK

Plant for transmitting electric power, including VSC-converter and DC/DC-converter

Device for supervising in a high voltage converter station

HVDC transmission system with multiple converter stations

A power transmission system for high-voltage direct current

SVC converter with an extra phase leg to replace a failed phase leg

Direct-current breaker for high power

POWER SEMICONDUCTOR VALVE DEVICE FOR OUTDOOR LOCATION

Electrode line protection