Facility for booking-free self-billing of charges for energy (electricity, water, steam) deliveries and other charges (basic charges, telephone charges, etc.)
DE737578C
Arrangement to accommodate brief voltage changes in power distribution networks
DE711677C
Device for testing remote control receiving devices
DE732427C
Device for monitoring an AC-supplied auxiliary network
DE729973C
Relay arrangement for receiving and executing remote control commands
DE717263C
Relay arrangement for receiving remote control pulses
DE713420C
Device for monitoring the sequence of the movement of circuit breakers
DE674869C
Arrangement for remote control by brief interruption (keying) of the mains voltage
DE686465C
Device for monitoring the timing of the movement of circuit breakers, which are opened synchronously and briefly for the purpose of emitting remote control pulses
DE680431C
Device for remote control of street lamps, multi-tariff meters, air raid protection signals and the like distributed over a power network. like
DE682080C
Device for monitoring the opening time of several circuit breakers that are open synchronously and briefly for the purpose of issuing remote control commands
DE708831C
Device for measuring or registering the number and depth of voltage dips caused for remote control purposes
DE684074C
Device for the measurement and / or registration of voltage drops caused for remote control purposes by brief interruptions in the power line
DE705535C
Device for measuring the number and depth of short-term voltage drops for remote control purposes
DE710313C
Remote control receiving device that is operated by voltage reduction pulses
DE680462C
Device for remote switching through voltage reduction or interruption on the lines used for normal energy transmission
DE729565C
Procedure for remote switching in multi-phase networks only with the help of the power lines
DE526731C
Device for the simultaneous transmission of single-phase and multi-phase current via a multi-phase line and an additional conductor that is independent of it
DE473114C
Device for the simultaneous transmission of single-phase alternating current through parts of a multi-phase current transmitting line system that work in parallel
DE454636C
Device for the simultaneous transmission of single-phase alternating current through parts of a multi-phase current transmitting line system that work in parallel
