Device for the electrical reproduction of motion states of a rotating shaft
DE633442C
Safety circuit to limit the current when the voltage rises
DE584861C
Protection device for flue gas feed water preheater
DE652375C
Arrangement for the protection of electrical machines, apparatus and devices against fault current when using a summation and differential current transformer
DE657299C
Circuit for phase and earth fault protection for any power generator or power consumer
DE647533C
Arrangement for the protection of electrical machines, apparatus and devices against fault current when using a sum and difference current transformer and an alternating current auxiliary voltage
DE519742C
Protection device for relay
DE579159C
Arrangement for automatic current limitation with glow lamps
DE586575C
Resonance circuit for the simultaneous suppression of harmonics and compensation of magnetization currents
DE523377C
High voltage capacitor
DE602051C
Stratified implementation
DE549949C
Safety circuit
DE496173C
Arrangement for phase swiveling on apparatus coils
DE512494C
Device for eliminating the disruptive effects of fault currents in earth fault protection systems
DE546362C
Compensation circuit to cancel the currents flowing through a converter
DE568147C
Protection circuit
DE554929C
Paper capacitor implementation, especially for higher voltages
DE535000C
Resonance circuit
DE512804C
Implementation with several tubes made of ceramic material, the spaces between which are filled with a phenol or cresol-formaldehyde condensation product
DE526774C
Arrangement to increase the sensitivity of the tripping, signal and control relays used in high-voltage systems
