Based On GPRS Network Power Transformer Anti-theft Alarm System Development

With the copper market prices surge around the theft of power transformers, resulting in huge losses of power assets, the normal order of the power supply was severely damaged, seriously affecting people's production and life.In particular, some wells in SLOF remote teams, bad weather, the surrounding security environment is poor, rampant criminal acts, together with a wide distribution of well station, not concentrated, and therefore more difficult to manage.Although public security and power sector to take precautions against a number of measures, but still difficult to curb the rampant theft.Transformer towers, scattered distribution of the characteristics, determine their prevention alone is unrealistic artificial, and therefore part of the solution technology to prevent theft of power transformers important means frequent.GPRS power transformers burglar alarm system from the three-phase voltage monitoring circuit, alarm sensor, GPRS communication unit, the mobile communication network composed of several parts.Monitoring of power transformers in the grid or the safety of the normal operation, the transformer monitoring anti-theft device on standby, no alarm signal is issued.When the power grids or off-phase power transformers are destructive move (the event of theft), the voltage monitoring circuit through the transformer anti-theft monitoring device interface or GPRS communication unit interface to send alarm signals through the mobile communication network, the alarm signal is sent to the alarm center through the same timeGSM network to a mobile phone on duty, report to police intelligence, the alarm quickly rushed to the scene, spot disposal, can effectively avoid the destruction of power facilities, theft of public property caused by the loss.This study focuses on technical issues is provided by the anti-theft device power transformer to achieve the same technical effect must be under the premise of complete elimination of false positives. After a technical analysis and testing at home and abroad, found that the normally closed mercury switch mode access detection circuit, the use of its features can be stabilized NC which reflect the state of the transformer, the transformer is moved only when its status was changed, effectiveThe method is easy to put an end to the other technical drawbacks of interference by external factors to ensure the accuracy of alarm, the alarm in the domestic first principle from the possibility of eliminating false positives.Meanwhile, in response to components of the work in the field caused by the problem of accelerated wear and tear caused by failure to take a number of mercury switches access method in the case of the maximum cost control were simple but effective solution.