5results about How to "Avoid partial discharge" patented technology

The utility model provides a kind of insulating bearing cable anchor, comprising: connecting component, with power transmission line hardware connection and bear load;Core body lifting ring, accommodate the glass fiber reinforced silicone rubber wire harness wound to form core body and bear load;Clamp, the inner cavity of the clamp is horn shape, the horn shape inner cavity is consistent with the wire harness of the core body lifting ring wire slot tangent direction introduction, gather has been wound in the core body lifting ring, wire harness, which needs to be shaped, is shrunk into substantially cylindrical through the cylindrical outlet of the clamp;The connecting component is connected with the core body lifting ring, and the clamp is tightly clamped on the core body lifting ring. The utility model has the beneficial effects that: by the inner cavity of the clamp is horn shape, improve the stress state of wire harness, and by additionally provided glue injection hole groove A and glue injection hole B, form complete sealing structure after silicone rubber overall coating forming, improve the reliability of product and overall electromechanical performance.

This invention discloses a high-voltage DC bypass switch for improving reliability in areas with strong winds and high seismic intensity. It includes a switch body, a support bushing, and an operating mechanism. To enhance mechanical stability, a parallel insulating support structure is added beside the support bushing. This structure is rigidly connected to the flange at the top of the support bushing via a connecting plate, forming a triangular support frame. For the independent high-voltage node introduced by this structure, a split-type voltage equalization assembly is provided: a first voltage equalization ring is fixed to the top of the insulating support structure, and a second voltage equalization ring is fixed to the flange. Both voltage equalization rings are U-shaped, with opposite openings and electrical isolation, optimizing the electric field at two locations and effectively suppressing partial discharge. This invention synergistically solves the problem of improving the mechanical strength and insulation performance of high-voltage DC switches in harsh environments.

The invention relates to a battery monomer, a preparation method thereof, a battery and an energy storage device. The battery monomer comprises a frame, a pole plate and two diaphragms, the frame is arranged in a surrounding manner around a first direction and defines a mounting cavity penetrating along the first direction, and the pole plate is positioned in the mounting cavity and comprises a substrate fixedly connected with the frame and two active material layers with opposite polarities covering two opposite sides of the substrate in the first direction. The two diaphragms are both fixedly connected with the frame and located on the two opposite sides of the polar plate in the first direction, the two diaphragms are attached to the two opposite active material layers respectively, and the two diaphragms and the substrate jointly define two sub-plates which are adjacent in the first direction and are closed with each other. According to the invention, the problem of partial discharge caused by internal short circuit of the battery due to the fact that the active material is mixed into the electrolyte to pollute the electrolyte can be avoided, so that the battery capacity is improved, the standby storage time of the battery is prolonged, deep discharge caused by internal discharge can be avoided, pole plates are prevented from losing efficacy due to sulfation, and the service life of the battery is prolonged.

The invention discloses a simulation driving optimization processing method for a high-voltage test lead arrangement device, and relates to the technical field of power equipment, and the method comprises the following steps: S1, building a parameterized finite element model comprising a device and an air domain; s2, applying an alternating potential boundary to the finite element model, calculating the intensity of an alternating electric field, and extracting a pulsation electromagnetic force load frequency spectrum; s3, the load frequency spectrum is applied to a structure field for kinetic analysis, and inherent frequency, peak response displacement and stress distribution are obtained; s4, updating the geometric boundary of the device according to the peak response displacement, and performing electrostatic field simulation to obtain distortion electric field intensity; and S5, by taking the quality of the device as a target and taking the distortion electric field intensity, the stress distribution and the inherent frequency as constraints, adjusting the variables to be optimized, repeating the steps S1 to S4 until convergence, and outputting optimal structure parameters. The problems that under the dynamic working condition, a lead device is prone to fatigue fracture and transient breakdown, and it is difficult to consider both electrical safety and lightweight construction at the same time are solved.

This invention provides a spring-driven radial compression-based pluggable GIS terminal and its assembly method, belonging to the technical field of conductive connection equipment. The terminal includes an epoxy sleeve, terminals, cable cores, stress control components, a stop sleeve, a cone support, a cone support pressure plate, a spring propulsion assembly, and a tail tube. The terminals are disposed within the epoxy sleeve, with one end connected to the GIS equipment via a tapered bevel, and the other end equipped with a watch strap contact finger. The cable core is plugged into the terminals. The stress control component is disposed within the epoxy sleeve and contains a stress cone. The stop sleeve contacts the stress control component. The cone support and the cone support pressure plate are connected via a tightening screw. The spring propulsion assembly includes several springs and guide rods, with the springs positioned between the cone support and the cone support pressure plate. This invention optimizes the electric field distribution, enhances contact stability, improves working efficiency, and reduces processing costs.