Preset automatic feeder test method for distribution network

Abstract

The invention discloses a preset automatic feeder test method for a distribution network, relating to the technical field of power system automation and solving technical problems of labor consuming and time consuming. The preset automatic feeder test method comprises the steps as follows: compiling all test cases in sequence into a preset case, storing the preset case in test instruments, starting the test instruments for synchronous test, synchronously switching the test instruments into test state sections in a test process, and synchronously switching the test cases until all the test cases in the preset case are tested; and automatically generating corresponding electric data according to test state section data by the test instruments, outputting current, voltage and various state data through analog output terminals of the test instruments, making and executing a decision by a tested automatic feeder system according to the section data, and automatically responding to decision behavior of the tested system by the test instruments through control input terminals. The preset automatic feeder test method is suitable for automatic feeder test of the distribution network.

Description

technical field

[0001] The invention relates to the technology of electric power system automation, in particular to the technology of a preset feeder automatic testing method of power distribution network. Background technique

[0002] There are many control switches in the power distribution network, and each control switch is equipped with a monitoring terminal for monitoring its work. When performing an automated on-site test on the feeder of the power distribution network, it is necessary to perform a test on the tested line according to the topology of the power distribution network. The test current is injected into the monitoring terminals of all control switches, and the fault current is injected upstream of the fault point. No current or small current is injected downstream of the fault point. At the same time, it needs to cooperate with the voltage change process after the outlet circuit breaker protection action. Add voltage to the current terminal, and remove th...