Patent application number | Description | Published |
20140016236 | SWITCH FOR A TRANSMISSION PATH FOR HIGH-VOLTAGE DIRECT CURRENT - A switch for a high-voltage direct current transmission path includes a vacuum circuit breaker for disconnecting the transmission path and a gas-insulated circuit breaker for disconnecting the transmission path. The gas-insulated circuit breaker is connected in series with the vacuum circuit breaker. A device is provided for building up a counter-current against the current in the transmission path for the purpose of reducing the current across the vacuum circuit breaker. The elements of the switch are actuated by a control device in such a way that the switch is switched off at or close to the zero crossing of the current. | 01-16-2014 |
20140027257 | TAP CHANGER WITH VACUUM INTERRUPTERS - The invention relates to a tap changer having vacuum interrupters for switching over between winding taps of a tapped transformer without interruption. The tap changer according to the invention having vacuum interrupters is based on the general idea of combining the functionalities of at least one conventional vacuum switching contact which switches under load and a further mechanical switching means according to the prior art in just one single vacuum interrupter with two separately moving contact systems. | 01-30-2014 |
20140085028 | TAP CHANGER AND VACUUM INTERRUPTER FOR SUCH A TAP CHANGER - The invention relates to a tap changer for the interruption-free switchover between winding taps of a tap-changing transformer. Furthermore, the present invention relates to a novel vacuum interrupter which is particularly suitable for such a tap changer. The tap changer according to the invention is based on the general concept of combining in each case one main contact (V1) and one mechanical switching means (U1), connected in series therewith, of a first load branch and an additional resistive contact (V | 03-27-2014 |
20140125288 | ENERGY STORE AND METHOD OF CHARGING OR DISCHARGING AN ENERGY STORE - An energy store is provided having a first electrode, a second electrode, an electrolyte in between, a first redox pair having a first oxidation reactant and a first oxidation product, and a housing, wherein a fluidic redox pair is present in the housing and comprises a fluidic oxidation reactant and a fluidic oxidation product, wherein during the discharge of the energy store, the fluidic oxidation product is reduced, and wherein during the charging of the energy store, the fluidic oxidation reactant is oxidized, wherein the fluidic redox pair in the housing is gaseous, and a pump or a compressor is adapted such that the fluidic redox pair within the housing is held at a pressure which is above the ambient pressure outside the housing. A method for charging or discharging an energy store is also provided. | 05-08-2014 |
20140134505 | ELECTRIC ENERGY STORE - An electric energy store having a thermally insulated chamber that has a process gas inlet and a process gas outlet is provided. The thermally insulated chamber is equipped with at least two stacks, each of which has at least one electrochemical storing cell, and each stack has a process gas inlet and a process gas outlet. The at least two stacks are serially connected with respect to the process gas flow. | 05-15-2014 |
20140299579 | DC VOLTAGE CIRCUIT BREAKER - A DC voltage circuit breaker includes at least one interrupter and a commutator device connected in parallel with the interrupter. The commutator device includes a capacitor circuit. The capacitor circuit includes a parallel circuit having at least two capacitor branches and the capacitor branches each have a capacitor in series with a capacitor branch switch. | 10-09-2014 |
20150020531 | GAS TURBINE-HEATED HIGH-TEMPERATURE BATTERY - A power plant system is provided having a high temperature battery, supplied with fluid via at least one supply line, for storing and releasing electrical energy, a gas turbine for generating electrical energy, and a heat exchanger which is designed to extract thermal energy from the exhaust stream of the gas turbine and transfer said thermal energy to the fluid, which fluid can be supplied after heat transfer to the high temperature battery via the at least one supply line. | 01-22-2015 |