Transformer arrangement for converting three-phase electricity into electricity with a large number of phases
DE711553C
Device for briefly closing and opening AC circuits
DE672014C
Circuit arrangement to increase the operational safety of grid-controlled discharge vessels with gas or steam filling
DE671447C
Device for switching AC circuits with grid-controlled discharge paths
DE677789C
Transformer arrangement for converting 3-phase current into 12-phase current
DE669398C
Grid-controlled converter system with several parallel-connected discharge vessels
DE660838C
Control device for electric motors that are fed via grid-controlled steam or gas discharge lines
DE662596C
Transformer arrangement for converting 3-phase electricity into 12-phase electricity
DE582750C
Vacuum-tight and mercury-resistant electrode insertion in mercury-vapor glass rectifiers
GB342642A
Arc-ignition device for metal vapour rectifiers
DE567617C
Metal vapor rectifier with an externally electromagnetically operated, rotatable ignition anode in the form of a two-armed lever
DE481892C
Circuit arrangement for the self-loading of accumulator batteries
DE502068C
Cooling for electric glass vacuum vessels
DE509175C
Arrangement for the complete or partial elimination of the superimposed alternating current in direct current networks fed by rectifiers or the like
DE488534C
Rectifier system with anode chokes pre-magnetized by direct current for the independent charging of accumulator batteries
DE461565C
Device for cooling mercury vapor rectifiers or the like by means of a fan
DE490721C
Arrangement for charging collector batteries
DE512866C
Metal vapor rectifier system with automatic voltage regulator
DE474872C
Circuit arrangement for rectifier systems with an accumulator battery connected in parallel to the rectifier on the direct current side to eliminate and reduce the pulsation of the direct voltage
DE388134C
Rectifier system for supplying three-wire networks with voltage division by a balancing machine
