direct current voltage-stabilized source

direct current-direct current DC-DC converter

direct-current direct-current converter

full-automatic alternating current stabilized voltage supply

1 000 kV ultra-high voltage direct current

accumulator direct current supply

alternating current-direct current

asymmetric alternating current-direct current powe

asymmetric alternating current-direct current power supply

Chu-Sui ultra-high voltage direct current(UHVDC) system

Digital direct current voltage meter

direct current supply

direct current supply in substation

direct current voltage

direct current voltage divider

direct current voltage generator

Direct-current voltage gradient

high voltage direct current

high voltage direct current (HVDC) buried electrod