Analysis And Design On Power Monitoring System In A Residential District

With the improvement of intelligent electricity network, the automatic power monitoring system of intelligent community put on the agenda. The widely use of computer raises the level of power automation. The improvement in the level of power automation can improve power supply reliability and security and makes life convenient.The paper applies VB, database and OPC technologies to design a power monitoring system, which studies power automatic monitoring system in a residential district. The system can monitor the operation of the electricity network, and then yon can use the system to achieve data, query data, and generate report, print report, display graph, print graph.The main contents of the power automatic monitoring system are as follows:(1) The main network system can display some technical data clearly of transformers, capacitors, feeders, and the control cabinets in the system.(2) The automatic monitoring system can display current, voltage, power, frequency, power factor, KWh and other data of the electricity network.(3) When the electricity network parameters are changed greatly and when the transformers are abnormal the alarm information is generated to tell the users.(4) In the system you can choose the date to require current, voltage, power, frequency and other data. All the data can be printed.(5) In the system the current, voltage, power, frequency, power factor and other data can be displayed by real-time curve and historical curve.(6) In the user management module you are allowed to add users, change your password and permission. The user's permission is strictly managed.The system realizes automatic management of power in a residential district intuitively and easily. The computer network monitoring system based bus and Ethernet adopt advanced technologies and has bright future.