Power facility test system based on breakdown measurement device

Abstract

The invention discloses a power facility testing system based on a breakdown measurement device, which includes a leakage current sensor installed in each insulator base, and the secondary side current of the leakage current sensor is drawn to each insulator monitoring terminal through a current loop. Each insulator monitoring terminal is connected to the coordinator through a wireless transmission module, and the data output part of the coordinator is connected to an analysis and query system. The wireless transmission module adopts a wireless transceiver terminal and uses GPRS / GSM for network transmission. The secondary side current of the sensor can be drawn to the insulator monitoring terminal through the current loop, and then transmitted to the coordinator. After the coordinator finds a fault, it enters the analysis and query system, and measures the leakage current through the leakage current transformer and related circuits to identify the insulator. Insulation performance, and the test results are uploaded through the wireless module, and the insulation performance of all insulators in the entire seal mother can be detected through one or several overall tests during maintenance.

Description

technical field [0001] The invention relates to a detection system, in particular to a power facility testing system based on a breakdown measurement device. Background technique [0002] At present, the generator lead-out circuit of large-scale generator sets in my country and the current transmission device of the factory branch circuit are all closed busbar devices, which are mainly composed of a shell made of aluminum plate and a large current transmission conductor. The shell and the conductor are mainly composed of many Insulator for support; in order to ensure safety, the insulation performance between the enclosure and the conductor must be ensured before and during use of the enclosed busbar, that is, the insulation performance of the supporting insulator; The faulty insulator needs to be replaced in time during maintenance; since the supporting insulators in the device are installed in parallel, it is very troublesome to find the faulty insulator when the overall ins...

AI Technical Summary

Problems solved by technology

[0002] At present, the generator lead-out line circuit of large-scale generator sets in China and the current transmission device of the factory branch circuit all adopt closed busbar devices, which are mainly composed of a shell made of aluminum plate and a large current transmission conductor. The shell and the conductor are mainly composed of many Insulators are used for support; in order to ensure safety, the insulation performance between the shell and the conductor must be guaranteed before the closed busbar is put into use and during use, that is, the insulation performance of the supporting insulator; The faulty insulator needs to be replaced in time during maintenance; since the supporting insulators in the device are installed in parallel, when it is found that the overall insulation performance of the device has declined, how to find the faulty insulator is very troublesome. When the above situation occurs, it is often to open the connecting section of the sealing mother first to determine the sealing mother of the faulty section, and then take out all the insulators in the sealing mother of the faulty section and use a shaking meter for insulation testing. Since there are many sections of the sealing mother device, each There are dozens to hundreds of insulators in the section, which makes the whole testing process a huge workload

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