Voltage time type logic tester and test method

Abstract

The invention discloses a voltage time type logic tester and a test method. The tester comprises a distribution terminal logic test module, a section switch opening time test module, a closing peak current test module, and a tele-signaling and telemetry aided test module. The distribution terminal logic test module comprises a control circuit, a contactor in the control circuit is connected with a contactor main output circuit, and the contactor main output circuit is connected with a power output end. The section switch opening time test module comprises an hour meter which automatically records the opening time of a switch. The closing peak current test module comprises a current transformer connected in series to the output port of a distribution terminal, and tests the closing peak current through a current meter. The tele-signaling and telemetry aided test module comprises an adjustable voltage and current output module and an analog switch, and the adjustable voltage and current output module outputs adjustable voltage and current and works together with the analog switch to complete tele-signaling and telemetry function test. Voltage time type distribution terminal logic verification, section switch closing peak current test, section switch opening time test, and tele-signaling and telemetry aided function test can be implemented.

Description

technical field [0001] The invention relates to the technical field of intelligent switch logic test, in particular to a voltage-time logic tester and a test method. Background technique [0002] The application time of the distribution automation system is still short, the relevant technical specifications and standards are not perfect, and the reliability of the equipment cannot meet the requirements. In many hilly areas, the voltage-time feeder in local mode is widely used, accounting for 92%, which brings conditions for the application of equipment. [0003] Taking the distribution network of a certain city as an example, in 2014, there were many times in 2014, the expansion of the fault range caused by the logic action error of the voltage-time distribution terminal, the inaccurate judgment of the fault area, the reclosing failure caused by the slow opening speed of the switch, and the closing current of the switch. Largely lead to accidents such as burning of power di...

AI Technical Summary

Problems solved by technology

[0003] Taking the distribution network of a certain city as an example, in 2014, there were many times in 2014, the expansion of the fault range caused by the logic action error of the voltage-time distribution terminal, the inaccurate judgment of the fault area, the reclosing failure caused by the slow opening speed of the switch, and the closing current of the switch. Major accidents such as burning of power distribution terminals

For a long time, there have been no testing instruments for smart distribution network equipment, which has exposed equipment defects that should have been eliminated before putting into operation, bringing great hidden dangers to the operation of the distribution network

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