Ring network cabinet outgoing line starting method avoiding power failure of customers

Abstract

The invention relates to a ring network cabinet outgoing line starting method avoiding power failure of customers, and relates to the technical field of power distribution network startup of a ring network, before a ring network cabinet to be started is put into use, insulating choke plugs are installed on all switches of the ring network cabinet, and then all switches and disconnecting links of the ring network cabinet and a superior power switch of the ring network cabinet are turned on in sequence to perform a switch-on charging test on all switches of the ring network cabinet at one time.By adopting the ring network cabinet outgoing line starting method avoiding power failure of customers disclosed by the invention, the problem that the existing two ring network cabinet charging startup methods cannot give consideration to both personal safety and power supply reliability is solved.

Description

technical field [0001] The invention relates to the technical field of start-up of distribution network, in particular to a method for start-up of a ring main unit. Background technique [0002] Before the ring main unit is put into use, because there may be potential safety hazards in a series of links such as manufacturing, transportation, and connection to the circuit, a full-voltage charging test is required before it can be put into operation. There are two methods at this stage during the start-up process, one It is the starting charging mode to ensure personal safety, and the second starting charging method to ensure reliability. These two methods have their own shortcomings, but they cannot take into account the requirements of reliability and safety reliability and operational safety. [0003] In the first starting method, after the spare switch of the ring main unit is connected to the outgoing line, the newly connected outgoing line has passed the insulation test,...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a method for starting the outgoing line of the ring network cabinet to avoid customer power failure. After the switch and knife switch, use the power switch with tripping capability on the upper stage of the new ring network cabinet to perform a full-voltage closing charge on the ring network cabinet body and its spare switch intervals to verify the insulation performance of all the spare switches of the ring network cabinet. It solves the problem that the existing two methods of charging and starting the outgoing line of the ring main unit cannot take into account personal safety and power supply reliability

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