Development And Operation Analysis Of Automatic Switching Device With66kV Contact Line Of Dandong Power

Along with the our country people’s production and life of the increasing degree of modernization, people’s demand for electricity and dependence in the multiplication, the power quality requirements are more stringent, power supply and distribution in various fields has been automated, unmanned, remote control, uninterruptible power supply of the goal. Microcomputer line auto-switch-on device enables the system to automatically protect device and relay protection device is a kind of combination, to provide uninterrupted supply of effective economic and technical measures, which in the modern power system has been widely used. This article only on Microcomputer Line auto-switch-on protection device in power system and automatic switching mode and basic principle are discussed.This paper develops a Dan, Feng, Kong, Xinxing220kV substation "66kV contact line auto-switch-on device field operating procedures" and the "66kV220kV substation without pressure disconnection device for field operation", prepared from the cast of the principle, application and matters needing attention were introduced in detail and the provisions for the use of220kV; substation operation mode of66kV system adjustment in detail, and the typical faults of220kV substation auto-switching operation to do the analysis, finally compared to add66kV contact line auto-switch-on device system before and after the occurrence of a fault condition, proved the feasibility of the system, and in a two substation operation mode allow cases extensive popularization and Application of standby power automatic supply device of the conclusion.