A gentle humming and then the powerful Series 4000 mtu gensets start up. They provide the emergency power supply for whole urban districts or hospitals, for example. Or even the onboard power on a luxury yacht. But for that to happen, a signal has to be sent at just the right moment to the engine that drives the generator to produce the electricity – in other words, the genset has to start up. To guarantee that, a whole lot of skill and precision is required, especially where the wiring of electricity generator sets is concerned.
The wiring is the nerve and motor control system of a genset. It connects control units and measurement systems on the engine to the engine management, the genset's temperature control systems or the fire extinguishing systems. And they have a lot to cope with: temperatures as high as 120°C, electric currents of as much as several hundred amperes and voltages up to 400 V. To ensure they are able to do so, mtu wires up the units itself at the Friedrichshafen production plant.