A low surface energy transmission line coating material is prepared and analyzed in this paper. Firstly, the super hydrophobic coating was developed and lubricated to obtain the super slip surface coating. Then, the resulting anti-ice coating was subjected to anti-ice performance tests and ice adhesion strength tests, respectively. Finally, the obtained results were analyzed. The results show that the developed anti-ice coating can greatly reduce the amount of ice covering, reduce the ice side force, and solve the problem of icing on transmission lines at low temperatures.

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China’s inductance value is traced back to the national inductance working base. In addition, in China’s electromagnetic metrology standard system, the inductance working standard can only be traced back to the source at 1kHz. The values at other frequencies are obtained after frequency conversion according to the distribution parameters of the inductance reference. The most accurate digital bridge is the 1689MRLC digital bridge, with impedance measurement accuracy of 0.02%, d and q measurement accuracy of 0.0001, and programmable test from 12Hz to 100kHz. Since the researchers need to work on the benchmark to ensure that the transmission capacity reaches 0.01% in the broadband (50 Hz-2.5 kHz), the measurement system needs to be redesigned.

In this paper, the technology of synchronous phasor measurement and its application in power system transient stability prediction and control, state estimation and dynamic monitoring, fault location is introduced. The construction method of wide area measurement system based on synchronous phasor measurement technology is puts forwarded. The important role of synchronous phasor measurement technology in these fields and its significance to power system security are analysed.