4results about How to "Increase arc voltage" patented technology

The utility model relates to an operating mechanism and switch equipment, and the operating mechanism includes support, buckle, lever, escapement component, upper connecting rod, lower connecting rod and main tension spring. The support contains limit position axle and both sides support wall, and the wall is equipped with lever, buckle rotation center, the second rotation department of buckle is connected buckle rotation center, and has upper connecting rod rotation center, the first rotation department of lever is connected lever rotation center, and again buckle axle contacts again buckle surface. The lock catch and traction rod of escapement component all turn relative to the support, and again buckle and buckle surface realize again buckle and release. The third rotation department of upper connecting rod is connected buckle upper connecting rod rotation center, and has second pin part, lower connecting rod rotation center, and the fourth rotation department of lower connecting rod one end is connected lower connecting rod rotation center, and the other end has contact head support rotation center. The both ends of main tension spring hang ear hook first, second pin part, and exert tension on lever and upper connecting rod. The utility model discloses operating mechanism realizes the preposition of upper connecting rod and lower connecting rod, so that arc extinguishing system can be located below operating mechanism and upper connecting rod and lower connecting rod.

This utility model relates to the field of arc extinguishing devices and discloses a high-voltage narrow-slit pressurized arc extinguishing device, including an arc extinguishing shell, a mounting frame, an arc extinguishing assembly, and two first gas generating components. The bottom of the arc extinguishing shell is provided with a gas generating port, and the two first gas generating components are symmetrically arranged on both sides of the gas generating port. When the circuit breaker is tripped, the moving contact swings, causing the electric arc on it to enter between the two first gas generating components through the gas generating port. The arc extinguishing assembly is disposed on the mounting frame and is used to extinguish the electric arc between the two first gas generating components. A narrow slit is formed between the two first gas generating components, which makes the arc heat more concentrated, increases the arc voltage, accelerates the pyrolysis rate of the gas generating material, and generates more arc extinguishing gas per unit time, thereby improving the arc extinguishing effect.

The invention discloses a contact mechanism and a vacuum circuit breaker, and relates to the technical field of circuit breakers. The contact mechanism comprises a moving contact, a static contact and a transverse magnetic field structure. The moving contact comprises a first contact part, the static contact comprises a second contact part, the arc extinguishing structure is arranged on the first contact part and / or the second contact part, the transverse magnetic field structure is used for generating a transverse magnetic field, so that the moving contact and the static contact form a rotary switching arc during opening and closing, and the arc extinguishing structure is used for extinguishing the switching arc. The contact mechanism provided by the invention can effectively improve the arc voltage of the switching arc, improve the arc extinguishing efficiency, enhance the arc extinguishing effect, improve the safety, meet the direct current breaking requirement and expand the application scene.

The application relates to a grounding switch with multiple short-circuit current switching capacity, and belongs to the technical field of gas insulated switch cabinets. The grounding switch comprises a grounding contact and a bus contact; the grounding contact comprises a grounding arc contact, a grounding contact compartment plate, a grounding contact passage hole and a grounding contact support plate; the grounding arc contact is separated into independent compartments by the grounding contact compartment plate; the bus contact comprises a bus conductive contact, a bus arc contact and a bus contact arm; the grounding contact and the bus contact are both moving contacts; when the grounding arc contact and the bus arc contact are close and the distance reaches a first breakdown distance, a discharge arc is generated, the discharge arc occurs between the grounding arc contact and the bus arc contact; the bus arc contact completely enters an independent compartment of the grounding arc contact, and the grounding conductive contact and the bus conductive contact are effectively connected. The grounding switch improves the short-circuit current switching capacity of the grounding switch.