The negative impact of information technology also spread to the power system

Fault information processing, based on wide area measurement system (WAMS) and on-line dynamic security analysis (DSA) Wide Area Protection (WAP) technology also has been applied to the power system, these new protection and control systems are in wide-area  Voltage stabilizer  and has a multi-point data communication because, frequent data communication, data flow continuously characteristics, the traditional power system remote terminal / modem (RTU / Modem) mode can not meet the need, the need to use standard Ethernet and TCP / IP protocol. On the other hand, with the computer and network technology in power system wide application of  mcb circuit breaker  also spread to the negative impact of the power system. With the public Internet hackers and viruses growing popularity, domestic electric power information system has also been found traces of hacker activity. In  power transformers , the current protocol used functions are not set to ensure that the control commands from the initiator is authorized, there is no effective measures to prevent the passage is likely to occur on the communication line circuit breaker operations such as forgery SCADA instruction terrorist threat.