Studying abroad for a while gives you the opportunity of broadening your horizons. You live in an international environment, meet people with different cultural backgrounds and learn a lot.
The best time to go on an exchange is in the fourth year. The only requirement is that you take the same subjects as given in the majors.
NHTV has built partnerships with a number of universities all over the world who can accommodate your exchange, but we encourage you to find a university yourself.