Let me show you how it should be done......
We were replacing the three generating sets used under emergency to charge batteries at a power station. Each diesel-alternator set was about 1MW. I asked why the old sets were being replaced, because after all, they hadn't done much work over the years and the technology had not advanced significantly.
One of the operators took me into the 'old' equipment room where the three engines were open but with tarpaulin covers over the crankcase. Each engine had a broken crank...... The first broke due to an auto-synchronisation fault, allegedly. The second broke during a demonstration of manual-synchronisation with the grid. The third broke when the expert took over to show 'how it should be done'.
The replacement sets were a good order for us so ----> all round.