As ceaseless development of economy and the improvement that people lives, the user rises ceaselessly to the requirement of power supply quality, level of the equipment stale that before facing distribution mesh, exists, power supply level of not tall, automation is low, business management is backward wait for a problem, distribution automation is being begun to work below feasibility condition already was urgent affairs. Implementing distribution network automation is the most significant step that distribution system raises power supply dependability. It not only can reduce power cut scope, shorten power cut time, improve power supply quality, offer for the user more the service of high quality, and the labor intensity that can reduce moving staff, reduce personnel expenditure, improve labor productivity, achieve power supply branch finally to be able to monitor, balance of system of harmonious distribution network, economy moves, reduce net damage, raise the goal of economic benefits and social benefit.
The function of distribution automation system
Distribution network the limits in whole power system is medium, low-pressure electrified wire netting and development arrive among them high pressure electrified wire netting, dividing line chooses the high-pressured side in transformer of high-pressured ／ middling pressure, but the breaker that does not include high-pressured side and switch-disconnector. The main task of distribution network is to make sure it is power supply of on the safe side, good to allocate good bear, management voltage ／ does not have the result, electric energy that offers high quality to wait. The moving function of distribution network automation is implementation control and equipment of surveillant distribution network. Include among them: Function of the control function of electrified wire netting, moving monitoring of electrified wire netting, breakdown management function, moving statistic reachs function of forms for reporting statistics.
Distribution automation is attempered at city net by installation normally host computer system of the center (abbreviation advocate station) , install the transformer substation at distribution transformer substation long-range workstation (abbreviation stands remotely) , installation reachs a stage to change at recloser of the recloser on circuit, control the control terminal around (child stand) . Distribution automation system basically includes: Transformer substation automation; Feed line automation; Load management and control; The user copies watch plan to expend automation; Match the geographical information of electrified wire netting to manage.
The automation inside transformer substation station
Supervisory equipment comes to the distribution network that reachs one apply mechanically to correspond to be collected with data at distribution network at a inside transformer substation long-range workstation by installation implementation. The collection of each equipment data mixes interior of its transformer substation that finish monitoring (SCADA) function, convey the information after the data processing that collects to control a center to city net advocate station, attemper city net the data that the center allots and operation command are delivered child station, go finishing its corresponding operation job.
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