39results about How to "Reduce trip rate" patented technology

The invention relates to a system for power grid thunderstorm disaster warning based on recognition and forecast. The system is characterized by comprising a thunderstorm forecast information module, an early warning data analyzing module, a power grid thunderstorm risk early warning module and a display module all connected with one another in sequence. The invention further relates to a method which adopts the system to perform power grid thunderstorm disaster early warning. The system and the method utilize region thunderstorm characteristic and regional power grid characteristic, and combine the anti-thunderstorm design parameters and the on-site geographical conditions of power grid equipment including various transformer substations, electric transmission lines, pole and the like, so as to realize real-time automatic monitoring on the thunderstorm disaster, perform actual condition analysis quantitatively at a specific time and location and near-disaster early warning and perform fine instructional functions on production and scheduling of power grid.

The invention discloses a bell jar type disk-type composite insulator, which is characterized by comprising a fitting seat, a binder, a toughened glass core, a coupling agent, a silicon rubber composite layer and silicon rubber extension umbrella skirt, downward-extending silicon rubber umbrella skirts composited on an inner umbrella skirt of toughened glass, a metal rod and a silicon rubber non-composited area around the metal rod. According to the invention, the silicon rubber non-composited area around the metal rod plays a role in preventing the zero-value crushing characteristic of the toughened glass from being blocked, and is favorable for routing inspection personnel of a line to find out fault points of the line immediately. Compared with the glass (ceramic) insulator of the same specification, the bell jar type disk-type composite insulator disclosed by the invention is light in weight and strong in self-cleaning capability, ensures that a power grid is free from maintenance during operation, has the advantage of reducing the operation cost of the power grid and is safe and reliable. Meanwhile, because of the large creepage distance of the single insulator, the bell jar type disk-type composite insulator is stronger in over-voltage resistance under the condition of not increasing the number of the insulator for a power transmission line, can be widely applied to 35KW-1000KW power transmission lines and has better economic benefits and social benefits.

The invention relates to a lightningproof device, in particular to a puffer arc quenching lightningproof clearance device used in varies voltage grades transmission lines. The puffer arc quenching lightningproof clearance device comprises a conductor connection body, an earthing connection body, a gas generation device, a signal acquisition device, a high-voltage electrode, an earthing electrode,etc. The gas generation device is arranged near an electrode gap formed between the high-voltage electrode and the earthing electrode. The signal acquisition device generates signal after the generation of the arc. The gas generation device is started and therefore generates the airflow capable of blowing out the arc. The invention has the following benefit effects: the device features wide application, light weight, convenient transportation, assembly and disassembly, re-use, lower operation cost as well as environment protection; the device is fast in action, which is able to extinguish thearc quickly and enhance the success rate of recloser; the device is capable of decreasing the trip rate of the transmission line, and protect power facilities, thus being good for the power safety production and improving the power grid reliability.