Fuxin Power Grid Standby Power Supply Automatic Input Device Application Research

In order to guarantee the reliability of power supply enterprise,in the process of electric power production and supply,should maximize avoid blackouts for users,most of the power supply enterprise to improve power supply reliability,and most important substation and users with double as spare power supply or power supply mode of power supply.For the realization of the standby power supply in the main power supply of electric power automatic input,the power system of power supply enterprise put forward the standby power automatic input device,it can be safe and reliable operation is the key to ensure correct standby power input.But due to the power grid operation mode of the different regions,and all kinds of secondary equipment function is uneven,makes for the switch device in the operation of the power grid is the most complicated equipment,in order to ensure the case since the switch device can correct action,this article for fuxin area since the device application research.This paper analyzes the case since the switch device research background and topics of significance,elaborated the research status at home and abroad and research the feasibility and technical route,through the introduction of the basic working principle of prepare the switch device,analysis step by step since the switch device under different connection mode,different action condition and action logic,circuit breaker is studied for the cast way,block/bus coupler for the cast method,the logical principle of transformer as spare way.According to fuxin regional power grid operation requirements,combined with the typical case before the logical order,such as wiring method,put forward to design suitable for fuxin grid area required for the switch device,according to the article puts forward the train of thought,the first requirement for fuxin area to prepare the switch device is analyzed,according to the relevant requirements to prepare the switch device CPU,power supply plug-in,opening out the plugin,communication acquisition plugin redesign,and according to the fuxin region grid connection requirements to prepare the switch device logic to design,puts forward a circuit breaker for the investment way,block/bus coupler for the investment way,as spare transformer way logic diagram under the three ways to meet the requirements,combined with haizhou camp 66 kv substation site actual situation,to prepare the device for secondary wiring way,action logic,the actual circuit breaker action is analyzed,through conclusion can demonstrate to prepare the plant site is qualified,can have the substation for the data since the switch device,promote to other transformer substations,fuxin district,to prepare the switch device and stable operation to provide important support in fuxin region.