DEHN + SOHNE GmbH + Co. KG Patent applications |
Patent application number | Title | Published |
20150015243 | CIRCUIT ASSEMBLY FOR THE STATE MONITORING AND LOGGING OF OVERVOLTAGE PROTECTION DEVICES OR OVERVOLTAGE PROTECTION SYSTEMS - The invention relates to a circuit assembly for the state monitoring and logging of overvoltage protection devices or overvoltage protection systems by means of pulse current monitoring, comprising at least one passive RFID transponder having an inductively coupled voltage supply, wherein in the case of an event of the overvoltage protection device or the overvoltage protection system, the RFID transponder antenna circuit is influenced, in particular interrupted, short circuited, or detuned, so that disturbance processes can be identified. According to the invention, a coil L | 01-15-2015 |
20140313632 | OVERVOLTAGE PROTECTION DEVICE HAVING AT LEAST ONE SURGE ARRESTER - The invention relates to an overvoltage protection device, comprising at least one surge arrester and one switchgear assembly, which is connected in series to the surge arrester and which can be triggered thermally, wherein the aforementioned components form a structural unit, and the thermal tripping means is arranged in the area of the expected heating up of the surge arrester when overloaded. According to the invention, the thermal tripping unit is configured as a stop element through which operating current or surge current does not flow. In the event of thermal overload, the stop element opens a releasing device of the switchgear assembly, wherein said switchgear assembly has an increased self-extinguishing capacity. | 10-23-2014 |
20140211525 | METHOD AND ARRANGEMENT FOR THE SURGE PROTECTION OF INVERTERS FOR PHOTOVOLTAIC SYSTEMS - The invention relates to a method and an arrangement for the surge protection of inverters for photovoltaic systems, comprising at least one surge protection device which is physically integrated in the inverter or can be found in the vicinity of the inverter. The at least one surge protection device is connected to the DC side of the inverter. According to the invention, the inverter supplies a signal for setting or tracking the operating point at an operating level in the maximum power point (MPP) range, the response voltage of the surge protection device being predetermined, set, or selected on the basis of said signal. | 07-31-2014 |
20140160614 | ARRANGEMENT FOR IGNITING SPARK GAPS - The invention relates to an arrangement for igniting spark gaps with a trigger electrode T which is located on or in one of the main electrodes H | 06-12-2014 |
20140132157 | SPARK GAP HAVING A PLURALITY OF INDIVIDUAL SPARK GAPS CONNECTED IN SERIES AND PRESENT IN A STACKED ARRANGEMENT - The invention relates to a spark gap having a plurality of individual spark gaps connected in series and present in a stacked arrangement, spaced apart from each other by insulating spacers ( | 05-15-2014 |
20140110376 | SINGLE- OR MULTI-POLE SWITCHING DEVICE, IN PARTICULAR FOR DC APPLICATIONS - The invention relates to a single- or multi-pole switching device, in particular for DC applications, having at least one rotating switching element ( | 04-24-2014 |
20130278129 | SPARK GAP HAVING A PLURALITY OF SERIES-CONNECTED INDIVIDUAL SPARK GAPS, WHICH ARE LOCATED IN A STACK ARRANGEMENT - The invention relates to a spark gap comprising a number of series-connected individual spark gaps which are placed in a stack arrangement, which are spaced apart from each other by insulating material discs and are provided with a spring contact, the individual spark gaps including ring-shaped or disc-shaped electrodes, and further comprising control elements for influencing the voltage distribution over the stack arrangement. According to the invention the ring-shaped or disc-shaped electrodes required to form one of the respective individual spark gaps are each inserted into an insulating body and held by same in a centered manner. The respective insulating material discs are located between and fixed by the insulating bodies. A recess is provided inside the insulating body to receive and center the electrodes, whose shape is complementary relative to the contour of the respective electrode, wherein the recess comprises on the inner circumference at least partially elastic, resilient centering projections or centering noses. | 10-24-2013 |
20130265685 | ARRANGEMENT FOR FORMING A THERMAL ISOLATION POINT - The invention relates to an arrangement for forming a thermal isolation point, consisting of an isolation strip to which a prestressing force can be applied, an electrical means which produces thermal energy and has a contact surface, in particular in the form of an overvoltage protection element or a component of such an element, as well as an integral connection means, which changes when heated in a defined manner in the aggregate state, in particular a solder. According to the invention, an adapter part is provided between the isolation strip and the contact surface of the electrical means, wherein the adapter part can on the one hand be connected to the contact surface in a purely interlocking and/or force-fitting manner, and on the other hand is connected in a manner which can provide thermal isolation integrally to the isolation strip. | 10-10-2013 |
20130235502 | HORN SPARK GAP WITH A DEION CHAMBER - The invention relates to a horn, spark gap with, a deion chamber ( | 09-12-2013 |
20130215544 | MULTI-STAGED OVERVOLTAGE PROTECTION CIRCUIT, IN PARTICULAR FOR INFORMATION-TECHNOLOGY SYSTEMS - The invention relates to a multi-staged overvoltage protection circuit, in particular for information-technology systems, comprising at least one coarse protection element and at least one fine protection element, wherein the at least one fine protection element can be activated by a triggering device depending on a threshold. According to the invention, the applied operating voltage is led to an evaluation device, which generates a reference voltage. Also provided is an evaluation unit, firstly for checking to see whether the current operating voltage is above the reference voltage, secondly for checking to see whether the voltage excess exceeds a previously determined level, and thirdly for establishing whether the rate of change of the operating voltage is greater than another previously determined value so that a transient overvoltage exists, wherein the triggering device then receives an activation signal from the evaluation device. | 08-22-2013 |
20130208388 | HORN SPARK GAP LIGHTNING ARRESTOR WITH A DEION CHAMBER - The invention relates to a horn spark gap lightning arrester with a deion chamber ( | 08-15-2013 |
20130207531 | SPARK GAP ARRANGEMENT COMPRISING TWO PREFERABLY FLAT, OPPOSING ELECTRODES THAT ARE HELD APART IN A HOUSING BODY - The invention relates to a spark gap arrangement comprising two preferably flat, opposing electrodes ( | 08-15-2013 |
20120014028 | SURGE ARRESTER HAVING AN OPTICAL FAULT INDICATOR - The invention relates to a surge arrester which, in a housing ( | 01-19-2012 |
20110211287 | SURGE ARRESTOR COMPRISING AT LEAST ONE ARRESTOR ELEMENT - The invention relates to a surge arrestor comprising at least one arrestor element, for example a varistor, and a disconnecting device for disconnecting the arrestor element or elements from the grid, wherein the disconnecting device comprises a thermal disconnect point that is incorporated into the electrical connection path within the arrestor, wherein a moving conductor section or a moving conductive bridge is connected to the arrestor element by way of the disconnect point on one side and the conductor section or the bridge is connected to a first external electrical connection of the arrestor on the other side, and comprises a means for generating a pre-stressing force, such as a spring, wherein the force vector associated therewith acts on the conductor section or the bridge in the disconnect direction directly or indirectly by way of a moving disconnection bracket, wherein further a conducting element is disposed in or at the end of the path of motion of the conductor section or of the bridge, said conducting element coming into contact with the conductor section or the bridge when the disconnecting device is triggered and being connected to a second external electrical connection for forming a short-circuiter. According to the invention, a moving insulation part is provided that penetrates into the path of motion of the conductor section or of the bridge directly prior to or upon reaching the short circuit state in order to prevent or suppress a re-ignition of the arc between the conducting element and the disconnect point. | 09-01-2011 |
20110205011 | RAPID DISCONNECT DEVICE - The invention relates to a rapid disconnect device for surge arrestors, in particular plate-type or flat varistors, comprising at least one element that is maintained under a mechanical stress, and a disconnection point for disconnecting the surge arrestor from the respective power grid upon thermal overload, wherein the disconnection point comprises contacts, the positions of which vary relative to one another, wherein one of said contacts is designed to be fixed. According to the invention, the contacts of varying positions relative to one another are electrically connected without the use of solder in such a way that incident current forces act primarily in the contact force direction and such that the moving contacts of the positionally-variable contacts of a lost element located at the surge arrestor and thermally detachable therefrom can be moved from a closed position to the disconnected position. | 08-25-2011 |
20110193674 | OVERVOLTAGE PROCTECTION DEVICE HAVING ONE OR MORE PARALLEL-CONNECTED OVERVOL TAGE-LIMITING ELEMENTS LOCATED IN ONE PHYSICAL UNIT - The invention relates to an overvoltage protection device having one or more parallel-connected voltage-limiting elements which are located in one physical unit, such as varistors, diodes or means of this type configured in the form of a disc, comprising a shell apparatus in order to electrically disconnect the overvoltage-limiting elements when they are thermally overloaded, and means for indication and/or signalling of the fault state which then occurs, wherein the switching apparatus is connected via a means which can be released thermally, such as adhesive or a solder, to a connecting contact of the at least one overvoltage-limiting element, and/or to an external terminal contact or plug contact. According to the invention, the switching apparatus is in the form of a solid U-shaped switching fork, the fork tines of which run essentially parallel to the side surfaces of the overvoltage-limiting element, holding the latter in the space between the tines. At least one of the fork tines rests on the at least one connecting contact and is fixed there via the means which can be released thermally wherein, when disconnection occurs, the disconnection slide is moved with the switching fork being driven and, in the process, the connection point between the fork tines and the connecting contact represents a fulcrum for the switching fork movement. | 08-11-2011 |
20080254655 | Plug-In Combination of Appliances for Protecting Against Overvoltages - The invention relates to a plug-in combination of appliances for protecting against overvoltages, said combination of appliances comprising: a socket-type lower part and at least one plug-in module, which can both receive overvoltage protection elements; contact elements and contact counter elements that are respectively arranged in the lower part and in the plug-in module; and complementary guide rails or guide grooves for inserting or pushing-on and fixing the respective plug-in module. According to the invention, functionally separated, mechanical catch or snap-in elements act between the respective plug-in module and the socket-type lower part independently of the forces which hold together the contact elements and the contact counter elements in a positively fixed and/or non-positively fixed manner when the plug-in module is in use. The catch or snap-in function can be cancelled without any mechanical auxiliary means when the respective plug-in module is to be replaced. | 10-16-2008 |