Braking resistor arrangement for limiting a frequency increase in an electrical energy supply grid, having a housing that is able to be at least partially filled with a liquid, a first electrode and a second electrode, wherein, during operation of the braking resistor arrangement, the electrodes have different electrical potentials and the electrodes are immersed in the liquid, wherein a protective device is provided for detecting a frequency increase in the electrical energy supply grid, the braking resistor arrangement is designed in such a way that, in the event of a frequency increase, an electric current flows through the liquid via the electrodes, wherein the liquid heats up, and the first electrode is provided to connect to a high-voltage potential or a medium-voltage potential, wherein - the braking resistor arrangement has a liquid circuit arrangement, and a liquid outlet and a liquid inlet, which are connected to the liquid circuit arrangement, - the braking resistor arrangement comprises a conductance adjustment device that is arranged in the liquid circuit arrangement and that is designed to reduce the conductance of the liquid through addition of a solvent or to increase the conductance of the liquid through addition of an electrolyte, - the liquid circuit arrangement has a pump that is connected to the conductance adjustment device via a connection line, wherein the conductance adjustment device is connected to a cooling apparatus of the liquid circuit arrangement via a connection line, and - a conductance measuring device is provided in the conductance adjustment device and is configured to continuously measure the conductance of the liquid pumped through the conductance adjustment device, characterized in that - the second electrode is connected to the earth potential, - the housing is electrically insulated with respect to the liquid, and - at least one of the electrodes is designed in a folded manner in order to provide an increased surface area for the interaction with the liquid. a first electrode and a second electrode, wherein, during operation of the braking resistor arrangement, the electrodes have different electrical potentials and the electrodes are immersed in the liquid, wherein a protective device is provided for detecting a frequency increase in the electrical energy supply grid, the braking resistor arrangement is designed in such a way that, in the event of a frequency increase, an electric current flows through the liquid via the electrodes, wherein the liquid heats up, and the first electrode is provided to connect to a high-voltage potential or a medium-voltage potential, wherein - the braking resistor arrangement has a liquid circuit arrangement, and a liquid outlet and a liquid inlet, which are connected to the liquid circuit arrangement, - the braking resistor arrangement comprises a conductance adjustment device that is arranged in the liquid circuit arrangement and that is designed to reduce the conductance of the liquid through addition of a solvent or to increase the conductance of the liquid through addition of an electrolyte, - the liquid circuit arrangement has a pump that is connected to the conductance adjustment device via a connection line, wherein the conductance adjustment device is connected to a cooling apparatus of the liquid circuit arrangement via a connection line, and - a conductance measuring device is provided in the conductance adjustment device and is configured to continuously measure the conductance of the liquid pumped through the conductance adjustment device, characterized in that - the second electrode is connected to the earth potential, - the housing is electrically insulated with respect to the liquid, and - at least one of the electrodes is designed in a folded manner in order to provide an increased surface area for the interaction with the liquid. - the braking resistor arrangement has a liquid circuit arrangement, and a liquid outlet and a liquid inlet, which are connected to the liquid circuit arrangement, - the braking resistor arrangement comprises a conductance adjustment device that is arranged in the liquid circuit arrangement and that is designed to reduce the conductance of the liquid through addition of a solvent or to increase the conductance of the liquid through addition of an electrolyte, - the liquid circuit arrangement has a pump that is connected to the conductance adjustment device via a connection line, wherein the conductance adjustment device is connected to a cooling apparatus of the liquid circuit arrangement via a connection line, and - a conductance measuring device is provided in the conductance adjustment device and is configured to continuously measure the conductance of the liquid pumped through the conductance adjustment device, - the second electrode is connected to the earth potential, - the housing is electrically insulated with respect to the liquid, and - at least one of the electrodes is designed in a folded manner in order to provide an increased surface area for the interaction with the liquid.