Survey of Robustness Measures in Electrical Designs in Nuclear Power Plants

Means of diversifying the connection to the grid using other connections, such as cross-coupling, connection to both off-site switchgears etc. has been discussed showing some possible ways of increasing robustness by means of not connecting all electrical trains to the same source.

Motor generating sets, MG-sets, as a mean of isolating the electrical system of the plant from the off-site power system has been identified as a good measure and no common cause failures have been identified.