ZURICH (Reuters) - ABB is ready to spin off more businesses although a separation of its electrification unit is not on the table, Chairman and interim Chief Executive Peter Voser said in an article published on Wednesday.The Swiss engineering company, under pressure from activist investors to simplify its operations, is carrying out a strategic review of underperforming businesses and agreed to sell its power grids business last year.Voser, the former Royal Dutch Shell CEO who took temporary..