Applied Research On Substation Equipment Online Monitoring Techniques

In electrical equipment condition-based maintenance, repair should be compulsory, and repairs required, and power enterprises have become an inevitable choice.Maintenance of state in the premise of one of the conditions is that they must achieve the operation of the substation equipment online monitoring and accurate assessment of equipment condition, the development of scientific and reasonable maintenance plan.Through the study of the principle based on substation equipment on-line monitoring system, combined with the functional and technical indicators and developed a substation equipment on-line monitoring system. Bus exclusive use of the system work, so the signal path entirely independent of each other, higher precision, field programmable from the host can debug, waterproof, Magnetically-shielded, and select a new anti-lightning devices.All devices used all industrial and military level, Having a strong ability to adapt to the environment. As a result of the unique bus control technology, with a main cables will be tested all the sensor equipment to link up, that is, no matter how many tested equipment (100), the signal cables is just only one. And a branch of signal cables to be 500 meters long, running large substation still ensure high precision and high stability. This brings the following benefits: construction greatly simplified, easy installation, low cost. Does not affect other safety equipment, the failure rate is low and ease of maintenance (a system fault diagnosis and fault targeting). The system of sensors to achieve a sampling of sampling Chuanxin, do not affect the reliability of the original high-pressure equipment. Is designed to the latest improvements and unique design of high-precision zero magnetic flux sensor, carefully adjusted to achieve the full linear measure. At the scene also can be easily calibrated. Wide temperature range (-40℃~ 60℃), a strong ability to adapt to the environment. The signal collection, transmission lines have taken a waterproof moisture, shielding protection and quarantine measures. The system of remote monitoring and control functions, not only can be achieved at the test data networking Far EasTone, but also through local area networks or dial-up mode in the rear can always automatic, manual on-site testing and working conditions and procedures set up to amend and remote software upgrades or maintenance, use A centre for management of dozens of sets of front-end monitoring system, powerful, simple and practical operation.The system software is now more popular PB, VB been prepared, and so, the operating platform for WindowsS9X, Windows2000 or WindowsNT, but also to the MIS system, ready to work state and set up procedures to amend, software maintenance, and have a very friendly man-machine Interface. And creatves the useful data analysis functions, including the relevance of original analysis and dynamic display. The systerm has a numbers of feature such as automatic measurement, real-time monitoring, automatic judgement, such as alarm and remote communications and remote control functions.Through experiments, the design of the on-line monitoring system and transformer oil on-line monitoring system is reasonable, and measurement data is accurate, and the anti-jamming performance is superior, and operation is easy. After field installation, monitoring parameters is in line with the actual test results, and the data is accurate, reliable and timely detection equipment for the provision of information and insulation defects basis. System performance is stable, and the resumption ability is stronger in the event of a change in external factors. Promoting with the power system is valuable.