Relay protection contact action tester based on wireless transmission

Abstract

A relay protection contact action tester based on wireless transmission comprises a collector input module, a collector output module, a wireless module and a man-machine interaction module, the collector input module is electrically connected with the collector output module through signals, and output signals of the collector output module are transmitted to the man-machine interaction module through the wireless module; and the collector is composed of the collector input module, the collector output module, the wireless module and the man-machine interaction module. The collector input module is used as a signal input end, the output signal of the collector input module is used as an input signal of the collector output module, and an output signal of the collector output module is transmitted to the man-machine interaction module through the wireless module; by using a data transmission mode based on wireless transmission, wiring is simplified, test steps are shortened, repeatedtest is avoided, and meanwhile, time consumed by action result analysis is reduced, so that the action test time of the relay protection contact is shortened.

Description

technical field [0001] The invention relates to a tester, in particular to a relay protection contact action tester based on wireless transmission, which belongs to the technical field of relay protection. Background technique [0002] At present, there are many substations under the unified jurisdiction of the State Grid, and each substation is equipped with a protection device. To ensure the safe use of the substation, it is first necessary to ensure that the action logic of the protection device is correct, and all contact actions should be reliable; The current test method, its process mainly includes five parts: preparation, contact test, data collation, analysis results, and site cleaning. After the test summary, it currently requires 13.5min / set of contact action test labor consumption, and at the same time 3-4 With human assistance, the efficiency of operation and maintenance is not high, and its work efficiency is difficult to cope with the huge task load of contact...

AI Technical Summary

Problems solved by technology

[0002] At present, there are many substations under the unified jurisdiction of the State Grid, and each substation is equipped with a protection device. To ensure the safe use of the substation, it is first necessary to ensure that the action logic of the protection device is correct, and all contact actions should be reliable; The current test method, its process mainly includes five parts: preparation, contact test, data collation, analysis results, and site cleaning. After the test summary, it currently requires 13.5min / set of contact action test labor consumption, and at the same time 3-4 With human assistance, the efficiency of operation and maintenance is not high, and its work efficiency is difficult to cope with the huge task load of contact action testing in the annual regular inspection, defect elimination, and technical transformation tasks

[0003] The instruments currently available on the market for relay protection contact action testing, such as relay protection outlet matrix testers or analog circuit breakers, still cannot get rid of the fixed thinking of using a large number of test lines to lead the contact action back to the tester

At the same time, the existing technology has the following problems: the number of outlet contacts that can be introduced is limited, the interface cannot be expanded, and it is difficult to solve the time-consuming test of many outlets such as bus differential protection; the contact action test wiring is complicated, the steps are repeated, and the time is high.

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