8results about "Spark gaps with auxillary triggering" patented technology

The application relates to the technical field of pulse power, in particular to a magnetic core auxiliary coaxial pre-ionization three-electrode gas switch, which comprises a gas switch main body, the gas switch main body comprises a low-voltage electrode, a high-voltage electrode and a trigger electrode which are coaxially arranged in an insulating support; the trigger electrode and the low-voltage electrode form a pre-ionization gap, and the trigger electrode and the high-voltage electrode form a main gap; the trigger electrode is used for receiving a trigger pulse voltage; when the trigger pulse makes the bottom of the trigger electrode produce strong field distortion, the pre-ionization gap is rapidly broken down, the main gap is pre-ionized by ultraviolet, and the gas switch main gap is rapidly broken down after the trigger pulse reaches the low-voltage electrode. The switch can improve the stability of the main gap breakdown.

Circuit protection device (130) for use in a circuit having at least one pair of conductors, wherein the circuit protection device (130) is configured to generate an arc, and wherein the circuit protection device (130) comprises: at least one pair of electrode arrangements (213), wherein a first electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a first conductor of the at least one pair of conductors, and a second electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a second conductor of the at least one pair of conductors; a conductor base (210) designed to support the electrode arrangements (213) on it; a cover (202) which is connected to the conductor base (210) and defines at least one insulation chamber (247), wherein the at least one pair of electrode arrangements (213) is arranged in the at least one insulation chamber (247); an enclosure shield (206) movably connected to the cover (202) in the isolation chamber (247), wherein the enclosure shield (206) defines an enclosure chamber (249) configured to enclose charged particles generated by the arc, and wherein the enclosure shield (206) operates such that it moves relative to the cover (202) in response to a pressure change generated by the arc in the enclosure chamber (249); and an insulation arrangement (207) connected to at least one cover (202) and to the enclosure shield (206), wherein the insulation arrangement (207) is configured to prevent the cover (202) from touching the enclosure shield (206).

The invention relates to a fuse (10) for a surge protection device (12). The fuse (10) has a housing (16) in which a horn spark gap (24) is arranged, the spark gap having two electrodes (26, 28) separated from each other by a gap (32) in an ignition section (30). The fuse (10) has an adjustment mechanism (40) configured to increase the gap (32) between the electrodes (26, 28) and / or an ignition gap (39) in order to increase the dielectric strength of the fuse (10). The adjustment mechanism (40) is manually operable or coupled to a tripping mechanism (64) configured to automatically trip the adjustment mechanism (40) following at least one tripping event. The invention further relates to an assembly (8) comprising the fuse (10) and a surge protection device (12).

Circuit protection device (130) for use in a circuit containing at least one pair of conductors, wherein the circuit protection device (130) is configured to generate an arc, wherein the arc products generating the arc include arc gases, and wherein the circuit protection device (130) comprises: at least one pair of electrode arrangements (213), wherein a first electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a first conductor of the at least one pair of conductors, and a second electrode arrangement of the pair of electrode arrangements (213) is electrically connected to a second conductor of the at least one pair of conductors, wherein the at least one pair of electrode arrangements (213) is configured to generate the arc; a conductor base (210) for mounting the electrode arrangements (213) on it; a cover (202) connected to the conductor base (210) and defining at least one insulation chamber (247), wherein the at least one pair of electrode arrangements (213) is arranged in the at least one insulation chamber (247); an enclosure shield (206) arranged on the conductor base (210) in the insulation chamber (247), wherein the enclosure shield (206) defines an enclosure chamber (249) enclosing the at least one pair of electrode arrangements (213), wherein the enclosure shield (206) is configured to at least partially enclose arc products in the enclosure chamber (249); and a preload arrangement (246) positioned between the cover (202) and the enclosure shield (206) and connected to at least one of the cover (202) and the enclosure shield (206), wherein the preload arrangement (246) is configured to allow the enclosure shield (206) to move away from the conductor base (210) in order to define a gap between the conductor base (210) and the enclosure shield (206) to allow at least some of the arc gases to escape from the enclosure chamber (249).

The present invention relates to a safety device for surge protection devices. [Solution] The safety device 10 has a housing 16 in which a horn gap 24 is located, and the horn gap has two electrodes 26, 28 separated from each other by a gap 32 in the ignition section 30. The safety device has an adjustment mechanism 40 configured to increase the dielectric strength of the safety device by increasing the gap between the electrodes and / or the ignition gap 39. The adjustment mechanism is coupled to an actuation mechanism 64 configured to be operated manually or to be operated automatically as a result of at least one actuation event. The present invention further relates to an assembly comprising a safety device and a surge protection device.

A surge arrester for DC mains comprises a spark gap for extinguishing mains follow currents in the DC mains, the current intensity of which is equal to or greater than a specified current threshold, and a triggerable extinguishing aid assigned to the spark gap, which is set up to extinguish mains follow currents below the specified current threshold. The surge arrester further comprises an evaluation module for triggering the extinguishing aid, the evaluation module being set up to trigger the extinguishing aid as soon as at least two tripping conditions are fulfilled which are characteristic of the fact that the spark gap alone 10 cannot extinguish the mains follow current within a specified time duration. Furthermore, a method of operating such a surge arrester is described.

An approach is disclosed for generating seed electrons at a spark gap (100) in the absence of 85Kr. The present approach utilizes the photo-electric effect, using a light source (120) with a specific nominal wave length (or range of wavelengths) at a specific level of emitted flux to generate seed electrons. A spark gap (100) device is provided that includes a first electrode (104) having a first surface and a second electrode (102) having a second surface offset from and facing the first surface. The spark gap further includes a light source (120) configured to emit light toward at least the first surface such that photons emitted by the light source when the spark gap is operated are incident on the first surface and cause electron emission from the first surface.