Fault Indicator Detection Method Based On Mechanical Automation Technology

With the development of urban and rural power grid construction and transformation in the world, a large number of distribution automation terminals and fault indicators of distribution lines are connected to the distribution network, and the distribution network automation system is becoming more and more huge. Because it can quickly determine the fault branch and section, and greatly reduce the time of fault finding and emergency repair, the fault indicator is more and more widely used in distribution network. Therefore, it is particularly important of the quality of fault indicator.

 

The rapid growth of distribution network has promoted the unified development of distribution terminal, digital fault indicator and related technical standards, verification specifications and management (storage) specifications, and also put forward higher requirements for verification and storage work of verification units.

 

 

Problem Analysis

 

1) The product quality

There are many kinds of fault indicators in the market, including the fault passage indicator, the overhead line fault indicator, the short circuit and earth fault indicator and etc. However, due to the uneven technical indicators of the equipment of various manufacturers, some distribution automation terminals and fault indicators of distribution lines are dropped, the telemetry error is too large, the telemetry and remote signaling are not transmitted in time, which seriously affects the automation level of distribution network.

 

2) The detection capability

With the construction of distribution automation of State Grid Corporation, a large number of fault indicators will be connected to the distribution network. In order to ensure the safe, stable and reliable operation of equipment, the power distribution terminal and fault indicator are required to conduct sampling inspection before supply and full inspection after supply. However, the existing manual detection mode is inefficient, and the detection ability can not meet the needs of a large number of fault indicators.

 

3) The test link

The existing common test, evaluation and acceptance method of distribution terminal and fault indicator is to use relay protection tester or signal source to manually load characteristic waveform to simulate electrical short circuit or ground short circuit or ground fault, and then detect the equipment. This test method has the disadvantages of complex operation process, poor trace ability of test process, inflexible test mode and low automation degree of test.

 

4) The warehousing

The lag or lack of intelligent warehouse construction will inevitably lead to some problems, such as the disordered placement of inspected equipment, the human deviation in the out of storage and the untimely information statistics, etc.

 

 

Based on the analysis of current problems, it is necessary to have a high degree of automation error detection system. Chaobo Automation Technology Co., Ltd. is a professional manufacturer of all types of fault indicators, integrating development and production together which do well at production automated fault indicators. And our products not only include overhead line fault indicators and short circuit and earth fault indicators, but also include cable type fault indicators and digital power line monitoring systems. If you are interested in our products, you can visit our website to learn more: https://www.fault-indicator.com/