Chapter 6 of KD 670 has been reviewed. The calculation of the load resistance R for star connection has been changed. An alternative resistance load with three 72 Ohm resistors connected in delta is given. These resistors can be switched in sequentially to realise a better matching at low wind speeds. A new chapter 9 has been added in which the starting behaviour for a resistor load is investigated. Switching from star to delta is also an acceptable option to improve the starting behaviour for a resistor load.